Answers
Copper has the highest thermal conductivity.
Thermal conductivity may be described as the charge at which warmness is transferred by using conduction thru a unit cross-phase region of fabric when a temperature gradient exits perpendicular to the vicinity. The thermal conductivity of a material is the degree of its ability to behave heat. it is generally denoted by k, lambda, or kappa. warmth transfer happens at a decreased fee in materials of low thermal conductivity than in substances of excessive thermal conductivity.
On the side of its carbon cousins graphite and graphene, diamond is an excellent thermal conductor around room temperature, having a thermal conductivity of more than 2,000 watts per meter consistent with Kelvin, which is five instances higher than the exceptional metals which include copper.
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Related Questions
If an object is traveling 400m/s, how long in hours will it take to reach 950.5km?
Answers
Answer:
Let's find out time using musically to we not less X elation times T um Sylvia 120 kilometer are and be known to get 70-kilometer bar are jobless acceleration. Relax. The relation is six housing kilometers where R squared times D and solving 40 t is equal to one divided by 120 hours which is equal to 32nd. Let's find a distance traveled using s is equal to a snot. Let's be not times de lis. How 50 square off 80 Um, A. Sees the exploration of car Times T's were no, that's like in numbers. So a distance is equal to 70 uh, kilometer, but are into one divided by 120 hard is less, one divided by two into x elation of God. It is a 6000-kilometer bar are square, are in duty square will t swear. He's one divided by 120 holes where so t is equal to 0.79 kilometers
Explanation:
Please HELP!!!?! Describe competitive and noncompetitive in inhibitors describe how mutations can lead to resistance with non-competitive inhibitors
Answers
Competitive inhibitors - Binds to the enzyme in place of substrate by competing against the substrate
Non-competitive inhibitors - Binds to other position than the active site and blocks the activation of the enzyme without competing against the substrate
The mutations could change the shape of the binding site of non-competitive inhibitor thus preventing the binding.
Enzymes are proteins that could be activated if a substrate attaches itself to the receptor of the enzyme like a lock and key. The shape of the substrate should fit the receptor in the enzyme to activate it.
Inhibitors are structures similar to the substrate. It prevents the activation of the enzyme.
Competitive inhibitors are structures that binds to the enzyme in place of substrate i.e., it competes with the substrate to attach itself to the enzyme.
Non-competitive inhibitors are structures that does not compete with the substrate. In an enzyme, there may be more than one binding site. The non-competitive inhibitor would attach to other position and blocks the activation of the enzyme.
Mutations can change the structure of the molecule and thus the function. The mutations could change the shape of the binding site of non-competitive inhibitor thus preventing the binding. This would result in resistance of the enzyme with non-competitive inhibitor.
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The percent by mass of iron(III) 1 Fe2S3
is _____%
Answers
Answer:
percent=69.94%
Calculate the work when a cylinder equipped with a piston changes volume from 0.200 L to 0.600 L against an external pressure of 3.00 atm (Remember that 101.3 J = 1 L∙atm)
Answers
Answer:
\(-121.56\ \text{J}\)
Explanation:
\(V_1\) = Initial volume = 0.2 L
\(V_2\) = Final volume = 0.6 L
P = Pressure = 3 atm
\(W=-P\Delta V\\\Rightarrow W=-3(V_2-V_1)\\\Rightarrow W=-3(0.6-0.2)\\\Rightarrow W=-1.2\ \text{L atm}\)
\(1\ \text{L atm}=101.3\ \text{J}\\\Rightarrow -1.2\ \text{L atm}=-1.2\times 101.3\ \text{J}=-121.56\ \text{J}\)
Work done is \(-121.56\ \text{J}\).
Stephan’s mother cuts a twig from a rose bush and plants it in the soil. After a few days, Stephan observes a new plant growing. Which characteristic does the growth of the new plant depict?
Answers
The growth of the new plant depicts the asexual reproduction characteristic. The characteristic that describes the growth of the new plant in Stephan's mother cutting a twig from a rose bush and planting it in the soil is asexual reproduction.
Asexual reproduction is the mode of reproduction by which organisms generate offspring that are identical to the parent's without the fusion of gametes. Asexual reproduction is a type of reproduction in which the offspring is produced from a single parent.
The offspring created are clones of the parent plant, meaning they are identical to the parent.The new plant in Stephan’s mother cutting a twig from a rose bush and planting it in the soil depicts the process of asexual reproduction, which is the ability of a plant to reproduce without seeds. In asexual reproduction, plants can reproduce vegetatively by cloning themselves using their roots, bulbs, or stems.
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Ignoring the possibility of stereoisomers, name the following substance. In the ring, each vertex represents a carbon atom and hydrogen atoms are not shown. CH3 CH₂CH₂CH3
Answers
Ignoring the possibility of stereoisomers the following substance is called butane.
Stereoisomers are molecules with the same chemical formula and sequence of bonded atoms but differ in their three-dimensional arrangement in space. They arise due to the presence of one or more chiral centers in the molecule that give rise to non-superimposable mirror images.
The two types of stereoisomers are enantiomers and diastereomers. Enantiomers are mirror images that are non-superimposable, while diastereomers are non-mirror images that are non-superimposable. Stereoisomers can have different physical, chemical, and biological properties and are important in fields such as drug development and organic synthesis.
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Identify the substance that has formula mass of 133.5amu.
(a) MgCI
b)SCI
c)BCI
D) AICI
Answers
The calculated formula masses to 133.5 amu, we find that the substance with a formula mass closest to 133.5 amu is (d) AlCl3. Therefore, the answer is option D.
To identify the substance with a formula mass of 133.5 amu, we need to calculate the formula mass of each given substance and compare it to 133.5 amu.
(a) MgCl2:
The formula mass of MgCl2 can be calculated by adding the atomic masses of magnesium (Mg) and chlorine (Cl).
Mg: atomic mass = 24.31 amu
Cl: atomic mass = 35.45 amu
Formula mass of MgCl2 = (24.31 amu) + 2(35.45 amu) = 95.21 amu
(b) SCl:
The formula mass of SCl can be calculated by adding the atomic masses of sulfur (S) and chlorine (Cl).
S: atomic mass = 32.07 amu
Cl: atomic mass = 35.45 amu
Formula mass of SCl = 32.07 amu + 35.45 amu = 67.52 amu
(c) BCl:
The formula mass of BCl can be calculated by adding the atomic mass of boron (B) and chlorine (Cl).
B: atomic mass = 10.81 amu
Cl: atomic mass = 35.45 amu
Formula mass of BCl = 10.81 amu + 35.45 amu = 46.26 amu
(d) AlCl3:
The formula mass of AlCl3 can be calculated by adding the atomic mass of aluminum (Al) and 3 times the atomic mass of chlorine (Cl).
Al: atomic mass = 26.98 amu
Cl: atomic mass = 35.45 amu
Formula mass of AlCl3 = 26.98 amu + 3(35.45 amu) = 133.78 amu. Option D
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Using your knowledge of boiling points and intermolecular forces, why do you think rubbing alcohol dries so quickly from your skin?
Answers
Answer:
Due to its weak intermolecular forces which make it volatile.
Explanation:
Hello,
In this case, antiseptic alcohol which chemically named as ethanol has a low boiling point (78.37 °C) and weak intermolecular forces of dipole-dipole kind, which make it volatile, it means it tends to rapidly vaporize even when it is not gently heated, therefore, even a weak force such as rubbing it, is enough to vaporize it out from the skin so it quickly dries.
Best regards.
Due to low boiling point and weak intermolecular force alcohol is volatile, which makes it to dry quickly from the skin.
Volatility of alcohol• The substances with strong intermolecular forces exhibit lower vapor pressures and are less volatile, on the other hand, the substances with weak intermolecular forces exhibit higher vapor pressures and are more volatile.
• Ethanol, that is, the antiseptic alcohol exhibits a low boiling point of 78.37 degree C and weak intermolecular forces of dipole-dipole kind.
• The characteristics of low boiling point and weak intermolecular forces makes the alcohol volatile.
• It shows that even when it is gently rubbed onto the skin, it vaporizes.
Thus, due to the properties of alcohol, even a weak force like rubbing is adequate to vaporize it out from the skin, and therefore, it dries briskly.
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A 13.0kg iron weightlifting plate has a volume of 1650cm^3. What is the density of the iron plate?
Answers
A 13.0kg iron weightlifting plate has a volume of 1650cm³. Therefore, 7.87g/cm³ is the density of iron plate.
What is density?The density of a substance is described as its weight per unit volume. In other words, density is the mass-to-volume ratio or weight per unit volume. It quantifies how much "stuff" a thing possesses inside an unit of volume (cubic meter or cubic centimeter).
Density is a measure of how closely stuff is packed together. Archimedes, a Greek scientist, developed the density principle.
density= mass / volume
= 13000/ 1650
=7.87g/cm³
Therefore, 7.87g/cm³ is the density of iron plate.
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1. (1pt for each) Mark O if the statement is true, X if wrong. For the wrong statements, correct
them.
(a) Since electrons are required, all electrochemical depositions are electrolytic. ()
(b) Increasing metal ion concentration has the same effect with the decreasing deposition current density on the electrodeposited structures. ( )
(c) The standard reaction Gibbs energy change for water electrolysis is positive, thus
generates 1.23V during electrolysis. ( )
(d) When the system is under charge transport limitation, the electrodeposited structures
are normally dense and uniform. ( )
(e) If you deposit metal A on metal 8 with huge lattice misfit between them, the deposition
process follows layer by-layer growth mechanism. ( )
(f) If the standard reduction potentials of metal A and B are 1.0V and -1.0V with respect to hydrogen electrode, you need to apply potential negative than -1.0V for making AxBy alloy. ( )
(g) When you make metal nanowire using AAO templated electrodeposition, the length of
wire can be controlled by the acid strength and voltage in anodization step. ( )
(h) The membrane electrolyte for PEMFC should be paths for both electronic and ionic movements. ( )
(i) The fuel cell electric vehicle generates no CO2, during operation. ( )
(j) The organic leveler used in the electrodeposition process interact with the substrate or
growing deposits normally through van der Waals interaction. ()
Answers
(a) Electroless deposition is a type of electrochemical deposition that does not require electrons - X.
(b) Increasing metal ion concentration increases the deposition current density on the electrodeposited structures - X.
(c) The standard reaction Gibbs energy change for water electrolysis is negative, not positive, and generates 1.23V during electrolysis under standard conditions - X.
(d) When the system is under mass transport limitation, the electrodeposited structures are normally dense and uniform - O.
(e) If you deposit metal A on metal B with a huge lattice misfit between them, the deposition process follows the island growth mechanism rather than the layer-by-layer growth mechanism - O.
(f) To make an AxBy alloy from metals A and B with standard reduction potentials of 1.0V and -1.0V, respectively, you need to apply a potential between -1.0V and 1.0V, depending on the desired stoichiometry - O.
(g) The length of metal nanowires made using AAO templated electrodeposition can be controlled by the anodization time and the thickness of the AAO template - O.
(h) The membrane electrolyte for PEMFC should only allow for ionic movement, not electronic movement - O.
(i) The fuel cell electric vehicle generates less CO2 than traditional vehicles but still produces some CO2 during operation - O.
(j) The organic leveler used in the electrodeposition process interacts with the substrate or growing deposits through chemical bonding rather than van der Waals interaction - O.
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Select the statement that best answers the following question What effect does the anion of an ionic compound have on the appearance of the solution?
a. The anion affects the intensity of the color more than the color of the solution.
b. The anion affects the color of the solution more than the intensity of the color.
c. The anion does not affect the color or color intensity of the solution.
d. The anion only affects the intensity of the color in a solution.
Answers
Answer:
b. The anion affects the color of the solution more than the intensity of the color.
Explanation:
An ionic compound is one that is made up of ions held together by electrostatic forces. The ions are made up of positively charged ions known as cations and negatively charged ions known as anions. In compounds with a high ionic attribute, anions produce colorless compounds. But compounds that have less ionic attributes produce deeper colors like black and red. When in solutions, ionic compounds take on color and this is because of the anion that absorbs infrared light energy.
How many moles of aluminum ions al3+ are present in 0.42 mol of al2so43
Answers
There are 0.84 moles of aluminum ions (Al3+) present in 0.42 mol of Al2(SO4)3.
To determine the number of moles of aluminum ions (Al3+) present in 0.42 mol of Al2(SO4)3, we need to consider the stoichiometry of the compound.
The formula of aluminum sulfate (Al2(SO4)3) indicates that for every 1 mole of the compound, there are 2 moles of aluminum ions (Al3+). This means that the mole ratio of Al3+ to Al2(SO4)3 is 2:1.
Given that we have 0.42 mol of Al2(SO4)3, we can calculate the moles of Al3+ as follows:
Moles of Al3+ = 0.42 mol Al2(SO4)3 x (2 mol Al3+ / 1 mol Al2(SO4)3)
Moles of Al3+ = 0.42 mol Al2(SO4)3 x 2
Moles of Al3+ = 0.84 mol Al3+
Therefore, there are 0.84 moles of aluminum ions (Al3+) present in 0.42 mol of Al2(SO4)3.
It's important to note that the stoichiometry of the compound determines the mole ratio between the different species involved in the chemical formula. In this case, the 2:1 ratio of Al3+ to Al2(SO4)3 allows us to determine the number of moles of Al3+ based on the given amount of Al2(SO4)3.
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You and your family have just arrived in Water Cycle Land. You are going on a new ride called the Water Cycle. You sit in your seat and the ride begins. All of a sudden something goes wrong. Your body is turning into a water droplet! Think about what you have learned about the water cycle. Now tell a story about what happens to you as you travel through the water cycle. By the way, how do you get your body back to normal?
Answers
Answer: you dont drink water for years
Explanation: dont drink water for years on end
Which electron configuration is impossible?
a. ls22s22p2d2
b. 1s22s22p63s23p64s
c. 1s22s22p63s23p3
d. 1s22s22p63s2
e. 1s22s22p63s23s54s
1
Answers
Answer:
MP hippopotamus
Explanation: I'm in the fifth grade so yeah I really don't know this so I'm just going to say some random stuff and white cheddar mac and cheese warm TV perfect back MD 11443 to 2885 eleven 12:20 to 11 132 0.24 answer
In an isolated system, two copper bars at different temperatures transfer energy until both are at the same temperature. How would the transfer of
energy be different if the bars were in an open system?
OA Energy transfer would occur only between the copper bars.
OB. Energy transfer would occur between the copper bars and the surroundings.
OC. No energy transfer would occur between the copper bars or the surroundings.
OD. Energy transfer would occur only with the surroundings.
Answers
The manner in which the transfer of energy would be different if the bars were in an open system is as follows: Energy transfer would occur between the copper bars and the surroundings (option B).
What is law of conservation of energy?The law of conservation of energy principle stating that energy may not be created or destroyed.
An isolated system exchanges neither energy nor matter with the surroundings. According to this question, two copper bars at different temperatures transfer energy until both are at the same temperature.
However, in an open system, some of the energy would be transferred to the surroundings.
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Compare the two shampoo
Answers
Answer:
Explanation:
I think you forgot to attach an image here!
a
b
С
When Ashraf was at the airport, the gas inside the packet was at the same
pressure as the air around it.
What does this mean? Underline the correct answer.
Gas particles inside the packet collided with the packet more often than
gas particles outside the packet.
. Gas particles inside the packet collided with the packet less often than
gas particles outside the packet.
. Gas particles inside the packet collided with the packet just as often as
gas particles outside the packet.
What changed when Ashraf was in the aeroplane? Underline the correct
.
answer.
Gas particles outside the packet collided with it less often than they did
at the airport.
. Gas particles outside the packet collided with it more often than they
did at the airport.
.
Use your answers to a and b to explain why the packet inflated when
Ashraf was in the aeroplane.
Answers
Gas particles inside the packet collided with the packet just as often as defines the gas inside the packet was at the same pressure as the air around it.
Pressure is defined as force/area. For instance, the pressure from snow on a roof would be represented by the weight of the snow divided by the area of the roof. In chemistry, pressure frequently comes from gases. The word "vacuum" refers to the absence of pressure. Humans have long assumed that vacuums are both impossible and unnatural since "nature abhors a vacuum." Actually, this isn't the case.
It's crazy how many pressure units there are! A widely used unit is the torr or mmHg. This is just talking about the height of a mercury column. About 760 torr, or mmHg, is the atmospheric pressure. You might also look at mmH2O, which uses the similar idea,
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A Sample of an Organic Compound Contain
0.624 Carbon, 0.065 hydrogen, 0·028 oxygen
(a) what is the Emperical formuler of the Compound.
(b) If the relative molecular mass of the Compound Is 1940 what is the moleculer
formular of the compound (C=12₁ H=1
N = 14,0= 16)
Answers
(a) The empirical formula of the compound is \(C_{29}H_ {36}O\)
(b) The molecular formula of the compound is approximately \(C_{8}H_{118}O_{3}\)
To determine the empirical formula of the organic compound, we need to find the simplest whole-number ratio of the elements present.
(a) The given percentages of carbon, hydrogen, and oxygen can be converted into moles by dividing them by their respective atomic masses:
Carbon: 0.624 g / 12.01 g/mol = 0.052 mol
Hydrogen: 0.065 g / 1.008 g/mol = 0.064 mol
Oxygen: 0.028 g / 16.00 g/mol = 0.0018 mol
Next, we divide each of the mole values by the smallest mole value (0.0018 mol in this case) to obtain the mole ratio:
Carbon: 0.052 mol / 0.0018 mol ≈ 29
Hydrogen: 0.064 mol / 0.0018 mol ≈ 36
Oxygen: 0.0018 mol / 0.0018 mol = 1
Therefore, the empirical formula of the compound is \(C_{29}H_ {36}O\)
(b) To find the molecular formula, we need the relative molecular mass of the compound, which is given as 1940 g/mol. The empirical formula mass can be calculated by summing the atomic masses in the empirical formula:
Empirical formula mass: (29 × 12.01 g/mol) + (36 × 1.008 g/mol) + (1 × 16.00 g/mol) = 588.94 g/mol
To find the multiplier, we divide the relative molecular mass by the empirical formula mass:
Multiplier: 1940 g/mol / 588.94 g/mol ≈ 3.29
Rounding to the nearest whole number, the molecular formula of the compound is approximately 3 times the empirical formula, resulting in \(C_{8}H_{118}O_{3}\).
In summary, the empirical formula of the compound is\(C_{29}H_ {36}O\), and the molecular formula is approximately \(C_{8}H_{118}O_{3}\).
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Which material is liquid butane, C4H10, likely to be miscible with?
Answers
Liquid butane C4H10 is likely to be miscible with D.) pentane.
What is liquid butane?Liquid butane, C4H10 is a nonpolar molecule, and it is likely to be miscible with other nonpolar substances. Among the given options, substance that is nonpolar and has similar polarity to butane is (d) CH3CH2CH2CH2CH3, which is pentane. Therefore, liquid butane is likely to be miscible with pentane.
On the other hand, options (a) CH3NH2 and (b) H2O are polar substances and are unlikely to be miscible with butane. Option (c) CH3OH is polar, but it has a lower molecular weight than that of butane and has some polar character, so it is also unlikely to be miscible with butane.
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Give the structures of the free‑radical intermediates in the peroxide‑initiated reaction of HBr
with the following alkene. Include all lone‑pair electrons and unpaired electrons. Hint: the radicals do not coexist in the same mechanistic step.
Answers
The peroxide addition would yield a product that is different from the antiperoxide addition
What is the structure?Markovnikov's rule states that when a protic acid HX is added to an alkene, the acid hydrogen (H) forms a bond with the carbon atom that has the greatest number of hydrogen atoms, while the halide (X) group forms a bond with the carbon atom that has the fewest hydrogen atoms.
This can be summed up with the phrases "the rich get richer" and "the poor get poorer" in terms of hydrogen. This fundamental principle of alkene chemistry aids in predicting the results of addition reactions.
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Does anyone know the answer I need help
Answers
Answer:
Can you put other picture because the picture is blurry? please
Explanation:
What is the wavelength of radiation that has a frequency of 5.9×1011 s−1 ?
Answers
Answer:
frequency = velocity of light /wavelength
wavelength = velocity / frequency
=3 x10^8 / 5.9 x 10^11
=0.508 x 10^-3.
Bisulfite ion
What’s its ion pleaseeee helpppp meee
Answers
Answer:
An ester of sulfuric acid in which only one sulfuric acid hydroxyl group has been esterified. The product of esterification of both sulfuric acid hydroxyl groups is a sulfate ester.
Solid sodium oxide and gaseous water are formed by the decomposition of solid sodium hydroxide (NaOH) .
Write a balanced chemical equation for this reaction.
Answers
Answer:
2NaOH(s) → Na₂O(s) + H₂O(g)
Hope that helps.
robert boyle and robert hooke worked together and discovered some important physics concepts. their work lead to the formation of boyle's law; this describes the . flow of fluids in the body and lead to the formation of the humoral theory flow of fluids in the body and lead to the formation of the humoral theory movement of oxygen and lead to the discovery of how blood delivered oxygen to tissues movement of oxygen and lead to the discovery of how blood delivered oxygen to tissues relationship between blood flow and the heart rhythm and helped them discover how the heart works relationship between blood flow and the heart rhythm and helped them discover how the heart works relationship between pressure and air volume and led to the understanding of how respiration works relationship between pressure and air volume and led to the understanding of how respiration works
Answers
A fundamental property of chemistry called Boyle's Law describes how a gas behaves when it is kept at a constant temperature. The rule asserts that the volume of a gas is inversely proportional to the pressure it exerts at a certain temperature. Robert A. Boyle discovered this relationship in 1662.
This empirical relationship, which Robert Boyle, a scientist, first proposed in 1662, argues that, under constant temperature, the pressure (p) of a given amount of gas changes inversely with its volume (v); in equation form, this means that pv = k, a constant.
Blood flows into the syringe to balance the pressure difference since blood in a vein has a higher pressure than the gas in the syringe. One of the three gas laws that govern the behavior of gases is Boyle's law.
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A gas has a volume of 550 mL at a temperature of -55 °C. The volume of the gas at 30 °C is
Blank 1:
mL.
Answers
The combined gas law equation is:
(P1 * V1) / (T1) = (P2 * V2) / (T2)
The volume of the gas at 30 °C is approximately 760.67 mL.
To determine the volume of the gas at 30 °C, we can use the combined gas law equation, which relates the initial and final conditions of temperature and volume for a gas.
The combined gas law equation is:
(P1 * V1) / (T1) = (P2 * V2) / (T2)
Where:
P1 and P2 are the initial and final pressures, respectively
V1 and V2 are the initial and final volumes, respectively
T1 and T2 are the initial and final temperatures in Kelvin, respectively
We need to convert the temperatures from Celsius to Kelvin by adding 273.15 to each value.
Given:
V1 = 550 mL
T1 = -55 °C = 218.15 K
T2 = 30 °C = 303.15 K
Assuming the pressure remains constant, we can rearrange the equation to solve for V2:
V2 = (P1 * V1 * T2) / (P2 * T1)
Since the pressure is not specified in the problem, we can assume it remains constant, allowing us to cancel out the pressure terms. Thus, the final equation becomes:
V2 = (V1 * T2) / T1
Plugging in the given values:
V2 = (550 mL * 303.15 K) / 218.15 K
Simplifying the calculation, we find:
V2 ≈ 760.67 mL
Therefore, the volume of the gas at 30 °C is approximately 760.67 mL.
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What effect would the incomplete drying of a sample (for example, the incomplete removal of a re-crystallization solvent) on percent recovery?
Answers
Answer:
It will lead to overestimation of the percent recovery
Explanation:
The percent recovery refers to the percentage of the pure compound recovered after a chemical process. It is a ratio of the pure compound recovered to the original substance multiplied by 100%.
If the sample was incompletely dried and the recrystallization solvent is still present, the percent recovery will be overestimated and we will have a value that is greater than the accurate percent recovery due to solvent impurities present.
-Convert 6.02 x 1020 formula units of MgCl₂ to mol of MgCl₂:
Answers
6.02 x \(10^{20\) formula units of MgCl₂ is equal to 0.1 moles of MgCl₂.
To convert formula units of MgCl₂ to moles of MgCl₂, we need to use Avogadro's number, which relates the number of formula units to the number of moles.
Avogadro's number (NA) is approximately 6.022 x 10^23 formula units per mole.
Given that we have 6.02 x 10^20 formula units of MgCl₂, we can set up a conversion factor to convert to moles:
(6.02 x 10^20 formula units MgCl₂) * (1 mol MgCl₂ / (6.022 x 10^23 formula units MgCl₂))
The formula units of MgCl₂ cancel out, and we are left with moles of MgCl₂:
(6.02 x 10^20) * (1 mol / 6.022 x 10^23) = 0.1 mol
Therefore, 6.02 x 10^20 formula units of MgCl₂ is equal to 0.1 moles of MgCl₂.
It's important to note that this conversion assumes that each formula unit of MgCl₂ represents one mole of MgCl₂. This is based on the stoichiometry of the compound, where there is one mole of MgCl₂ for every one formula unit.
Additionally, this conversion is valid for any substance, not just MgCl₂, as long as you know the value of Avogadro's number and the number of formula units or particles you have.
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In the nucleus, a sodium atom (Na) has 11p+ and 12 nºo. How would you write the
sodium ion based on the loss of one electron?
Answers
Answer:
Na⁺
Explanation:
Given parameters:
Number of protons = 11
Number of neutrons = 12
Writing the expression based on sodium ion that lost one electron;
In a neutral sodium atom, the number of protons and electrons are the same. Number of protons are the the positively charged particles in an atom.
Number of electrons are the negatively charged particles.
If an atom loses electron for instance sodium:
Number of electrons = 10
Number of protons = 11
Charge on the atom = 11 - 10 = 1+
So, the symbol of the atom is Na⁺
The irreversible isomerization A
B was carried out in a batch reactor and the following concentration time data were obtained:
Time vs Concentration data in a Batch reactor
t 0 3 5 8 10 12 15 7.5
mol/h 4 2.89 2.25 1.45 1.0 0.65 0.25 0.07
Determine the reaction order,
, and the specific reaction a rate constant, k, using any method of your choice.
Answers
The reaction order and specific reaction rate constant can be determined by performing the kinetics experiment on irreversible polymerization A. Kinetic experiments can be used to investigate the rate and mechanism of chemical reactions. Chemical kinetics is the study of chemical reactions' speed and pathway.
The term "kinetics" refers to the study of reaction rates, which are determined by measuring the concentration of reactants and products as a function of time.Kinetics experiments can be used to determine the reaction rate and order of reaction. A chemical reaction's rate is defined as the change in the concentration of a reactant or product per unit time. The order of a reaction refers to the number of molecules that must react to produce a product. The order of reaction can be determined by measuring the initial rate of the reaction as a function of concentration.Methods for determining the reaction rate order include the initial rate method, the half-life method, and the integrated rate method. The initial rate method determines the reaction order by measuring the initial rate of the reaction at different reactant concentrations. The half-life method determines the reaction order by measuring the time it takes for the reactant concentration to decrease by half.The integrated rate method determines the reaction order by measuring the concentration of the reactant or product at different times.The specific rate constant can be determined by using the Arrhenius equation, which relates the rate constant to the activation energy, temperature, and frequency factor. The frequency factor can be determined by measuring the rate constant at different temperatures.For such more question on polymerization
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