Ozone (o3) in the atmosphere can be converted to oxygen gas by reaction with nitric oxide (no). Nitrogen dioxide is also produced in the reaction. What is the enthalpy change when 8. 50l of ozone at a pressure of 1. 00 atm and 25°c reacts with 12. 00 l of nitric oxide at the same initial pressure and temperature? [δh°f(no) = 90. 4 kj/mol; δh°f(no2) = 33. 85 kj/mol; δh°f(o3) = 142. 2 kj/mol]
Answers
The enthalpy change when 8.50 L of ozone at a pressure of 1.00 atm and 25°C reacts with 12.00 L of nitric oxide at the same initial pressure and temperature is -277.5 kJ/mol.
The enthalpy change when 8.50 L of ozone at a pressure of 1.00 atm and 25°C reacts with 12.00 L of nitric oxide at the same initial pressure and temperature can be calculated by the given equation. The balanced equation for the reaction is:2O3(g) + 2NO(g) → 2NO2(g) + 3O2(g)The enthalpy change for the given reaction can be determined using Hess’s law. Hess’s law states that the enthalpy change of a reaction is independent of the route taken, provided that the initial and final conditions are the same.
Since the given reaction can be expressed as a sum of a series of known reactions, Hess’s law can be used to calculate the enthalpy change.Using the given data, the enthalpy change for the reaction can be calculated as follows:δH° = 2 × [ΔH°f(NO2(g))] + 3 × [ΔH°f(O2(g))] - 2 × [ΔH°f(O3(g))] - 2 × [ΔH°f(NO(g))]δH° = 2 × [33.85 kJ/mol] + 3 × [0 kJ/mol] - 2 × [142.2 kJ/mol] - 2 × [90.4 kJ/mol]δH° = - 277.5 kJ/mol
To know more about enthalpy change visit:-
https://brainly.com/question/28039996
#SPJ11
Related Questions
Please help me with this
Answers
The chloroplasts of the plant is the point where carbon dioxide does react with water and the products are sugars and oxygen.
How does the plant cell produce oxygen?We know that the plant obtains its energy form the sun. The sun is called the primary producer in the eco system. This is because the energy from the sun is trapped by the chloroplast of the plants.
Let us note that the chloroplast contains the chlorophyll which is the colored pigment that absorbs the light from the sun. This light that is absorbed from the sun acts a catalyst in a complex reaction in which the carbon dioxide combines with water to form sugars and oxygen.
Learn more about photosynthesis:https://brainly.com/question/1388366
#SPJ1
How is data not actually obtained from the experiment represented in a line graph?
•with a double line
•with a colored line
•with a broken line
•with only dots
Answers
Answer:
with a double line
Write formulas and other symbols for these substances.
a. sulfur trioxide (so3) gas
b. potassium nitrate (kno3) dissolved in water
c. heat supplied to a chemical reaction
d. metallic copper
e. liquid mercury
f. zinc chloride (zncl2) as a catalyst
Answers
The compounds listed above have the following chemical formula: SO3, K, and NO3 are listed in order. 3) H 4) Cu 5) Hg (l) 6) ZnCl2.
What is a chemical reaction, and what are some examples?
A chemical reaction is a process in which reactants react chemically and turn into products chemically. As an illustration, during respiration, oxygen is inhaled as well as combines with glucose to create carbon dioxide, water, and energy.
What is the common concept of a chemical reaction?
A chemical reaction is a process in which one or more chemicals, also described as reactant molecules, are changed everything into or more distinct compounds, known the products.
To know more about chemical reaction visit:
https://brainly.com/question/29762834
#SPJ4
Calculate the ratio of the rate of effusion of CO2 to He. A) 3.3/1
B) 11/1
C) 12/1
D) 0.090/1 E) 0.30/1
Answers
The ratio of the rate of effusion of CO² to He: 0.30/1. Graham's law states that the rate of effusion of a gas is inversely proportional to the square root of its molar mass. The correct option is E.
To calculate the ratio of the rate of effusion of CO² to He, we will use Graham's law of effusion.
The formula for Graham's law is: Rate₁/Rate₂ = √(M₂/M₁)
In this case, Rate₁ is the rate of effusion of CO2 and Rate₂ is the rate of effusion of He. The molar masses of CO2 and He are 44 g/mol and 4 g/mol, respectively. Plugging these values into the formula, we get:
Rate₁/Rate₂ = √(4/44) ≈ √(1/11)
This simplifies to approximately 0.30/1, which corresponds to option E in your list of choices. Therefore, the ratio of the rate of effusion of CO² to He is approximately 0.30/1.
To know more about effusion, refer here:
https://brainly.com/question/30715106#
#SPJ11
as the temperature of a gas decreases is volume
Answers
Answer:
it's volume also decrease
Qué tipo de energía tiene un sacapuntas
Answers
Answer:
creo q es electrico
Explanation:
Which is an empirical formula?
1.
H202
2.
H20
3.
C₂H₂
4.
C3H6
Answers
Answer:
c2h2 is it..........
Explanation:
lol
copy and label the atom showing the locations of the electrons protons neutrons and nucleus
Answers
Unlike protons and neutrons, which are housed inside the atom's nucleus at its center, electrons are found outside the atom.
How is an atom identified?An atom can have a label in addition to a symbol or atomic number. The label is formatted as "(text)" (without the quotation marks), which means "text, closed curved bracket, open curved bracket." If an isotopic mass is present, it should come after the chemical symbol, followed by the label.
How can you determine a nuclear symbol's protons, neutrons, and electrons?The element is represented by the letter(s) in the centre. The atomic number, which indicates the quantity of protons, is the number in the bottom left corner.
To know more about electrons protons visit:-
https://brainly.com/question/29248303
#SPJ1
f2 and cl2 are gases.br2 is a liquid. i2 is a solid. yet these diatomic elements are all in the same group. explain in terms of intermolecular forces
Answers
\(F_{2}\) and \(Cl_{2}\) are gases but \(Br_{2}\) is a liquid and \(I_{2}\) is a solid.
Each substance's molecules are drawn to one another by dispersion (London) intermolecular forces. The equilibrium between the kinetic energy of the molecules and their intermolecular attractions determines whether a substance is solid, liquid, or gas.
The electrons in fluorine are firmly bound to the nuclei. The London dispersion forces are comparatively weak because the electrons have little opportunity to stray to one side of the molecule.
The electrons are farther away from the nuclei when we transition from fluorine to iodine, allowing the electron clouds to more easily distorted. The forces of London's dispersion get ever greater.
The molecules will all become solids at a low enough temperature. They will all become gases if the temperature is high enough. Fluorine and chlorine are only gases between \(7^{0}\)C and \(59^{0}\)C, but bromine and iodine are solids at all other temperatures.
Learn more about London dispersion:
brainly.com/question/4301021
#SPJ4
Calculate the molality of 12 percent urea solution
Answers
Molality of a solution is defined as the number of moles of solute per kilogram of solvent. The formula for molality is given by the following equation:molality (m) = moles of solute / mass of solvent (in kg)In order to calculate the molality of a 12 percent urea solution, we need to first determine the mass of urea present in the solution.
We know that a 12 percent urea solution means that 12 grams of urea is present in 100 grams of the solution. Therefore, we can calculate the mass of urea in the solution as follows:Mass of urea = (12/100) x 200 g= 24 gNext, we need to convert this mass into moles. The molar mass of urea is 60.06 g/mol. Therefore, the number of moles of urea present in the solution can be calculated as follows:Number of moles of urea = Mass of urea / Molar mass of urea= 24 g / 60.06 g/mol= 0.3996 molFinally, we can use the formula for molality to calculate the molality of the solution as follows:molality (m) = moles of solute / mass of solvent (in kg)= 0.3996 mol / 0.2 kg= 1.998 mol/kgTherefore, the molality of the 12 percent urea solution is approximately 1.998 mol/kg.For such more question on moles
https://brainly.com/question/29367909
#SPJ8
how many moles are in 100.0 g of gold?
Answers
Answer:
196.96655
Explanation:
The answer is 196.96655. I assume you are converting between grams Gold and mole. The molecular formula for Gold is Au. The SI base unit for the amount of substance is the mole.
The quantity present in an atom or molecules of a given substance is called moles it is written as mol and is calculated with the help of molar mass and mass of the given substance.
0.507699 mol is present in the 100 gm of gold.
Moles of gold can be calculated by:Given,
Mass (m) = 100 gmThe atomic weight of Au (M) = 196.967The formula for calculating moles is:
\(\rm Moles (n) = \dfrac{Mass}{Molar \;mass}\)
Substituting values in the formula:
\(\begin{aligned}\rm n & = \dfrac{100}{196.967}\\\\ & = 0.507699 \;\rm mol\\\\& = 0.5077\;\rm mol\end{aligned}\)
Therefore, 0.5077 mol is present in 100 gm of gold.
Learn more about moles here:
https://brainly.com/question/6260819
Which molecule is shown below
Answers
Answer:
A
Explanation:
You can see the top part looks kinda like methane, and the bottom part looks like hexane.
Answer:
A is correctvia A P E x
Explanation:
A sample thought to be pure lead occupies a volume of 15.0 mL and has a mass of 160.0
Answers
The density of a sample thought to be pure lead occupies a volume of 15.0 mL and has a mass of 160.0 = 10.7 g/mol.
Evaluation :
Density = \(\frac{mass}{volume }\)
= \(\frac{160}{15}\)
density = 10.7 g/mol
What is meant by density of a substance ?
Density is termed because the ratio of mass of the object to the volume of the object. Different substances have several densities. The mathematical expression for density is as follows:
Density=Mass/Volume.
The mass of a substance is expressed in kilograms and therefore the volume is expressed in liter.
Volume :Volume is the total amount of space occupied by a substance, whereas mass is the amount of matter it contains in it . The amount of mass per unit of volume is a sample density.
Learn more about volume of a substance :
brainly.com/question/409570
#SPJ9
For each of the following reactions, write the
missing product(s) and then balance the resulting
equation. Identify each reaction by type.
Answers
a. Balanced chemical reaction: 4Li + O₂ → 2Li₂O
b. Balanced Chemical reaction: Mg(ClO₃)₂→ MgCl₂ + 3O₂
c. Balanced Chemical reaction: 2HNO₃ + Ca(OH)₂ → Ca(NO₃)₂ + 2H₂O
d. Balanced Chemical reaction: C₅H₁₂+ 8O₂→ 5CO₂ + 6H₂O
Lets understand these reaction types:
1. Synthesis: Chemical synthesis is the process in which chemical reactions are performed with the idea of converting a reactant into a product or multiple products.
For example: 4Li + O₂ → 2Li₂O
2. Decomposition: In these reactions chemical species break up into simpler parts.
For example: Mg(ClO₃)₂→ MgCl₂ + 3O₂
3. Double displacement: is a type of chemical reaction where two compounds react, and positive ions and the negative ions of the two reactants switch places, forming two new compounds or products.
For example: 2HNO₃ + Ca(OH)₂ → Ca(NO₃)₂ + 2H₂O
4. Combustion: These reactions occur when oxygen reacts with another substance and gives off heat and light.
For example: C₅H₁₂+ 8O₂→ 5CO₂ + 6H₂O
For more question on chemical reaction click on
https://brainly.com/question/11231920
#SPJ11
Correct form of question
For each of the following reactions, identify the missing reactant(s) or products(s) and then balance the resulting equation. Note that each empty slot may require one or more substances.
a. synthesis: ___ ⟶Li2O
b. decomposition: Mg(ClO3)2⟶___,
c. double displacement: HNO3+Ca(OH)2→___,
d. combustion: C5H12+O2⟶___
One major problem with wind and solar energy is that they are conditional. Explain how hydroelectric pumped storage could be used to eliminate this
obstacle? *
Link to the article https://thinkprogress.org/the-inside story-of-the-worlds-biggest-battery-and-the-future-of-renewable-energy-8984c81283c/
Answers
Answer:
Hydroelectric pumped storage can be used to eliminate the conditional nature of wind and solar energy. At times of peak production of energy from either solar or wind (during summer and windy days), the excess electrical energy produced can be stored using hydroelectric pumped storage methods. When conditions no longer favour energy production from either wind or solar sources, these stored energy can then be regenerated for use.
Explanation:
Pumped-storage hydroelectricity is a type of hydroelectric energy storage used by electric power systems to store excess electrical power during periods of low demand for later release at periods when demand for energy rises again. It stores energy in the form of gravitational potential energy of water, pumped from a lower level reservoir to a higher level reservoir.
At times of low electrical demand, excess generated energy is used to pump water into the upper reservoir. When there is higher demand, water is released back into the lower reservoir through a turbine, generating electricity.
This form of energy storage is useful in circumventing the conditional nature of renewable energy sources such as wind and solar energy. At times of peak production of energy from either solar or wind (during summer and windy days), the excess electrical energy produced can be stored using hydroelectric pumped storage methods. When conditions no longer favour energy production from either wind or solar sources, these stored energy can then be regenerated for use.
Metal
Mass of copper produced in grams
Experiment 1
Iron - 1.1
Magnesium - 2.3
Zinc - 0.9
Experiment 2
Iron - 1.3
Magnesium- 3.2
Zinc - 0.8
Experiment 3
Iron - 1.2
Magnesium- 2.2
Zinc - 1.10
(a) How can you tell that one of the results has been recorded to a
greater precision than the others?
(b) Write a balanced chemical equation, including state symbols,
for the reaction taking place between magnesium and
copper(II) sulphate.
(c)
(i) State, in terms of electrons, what happens when a copper
ion becomes a copper atom
(ii) What name is given to the type of change occurring in
(c)(i)?
(iii) State two observations you would expect to make when
magnesium is added to copper(II) sulphate solution.
Answers
Answer:
How can you tell that one of the results has been recorded to a
pH = 10.88
what is the OH-
Answers
Answer:
The pH of a solution is defined as the negative logarithm (base 10) of the concentration of hydrogen ions [H+]. The concentration of hydroxide ions [OH-] can be calculated using the equation Kw = [H+][OH-], where Kw is the ion product constant for water, which is equal to 1.0 × 10^-14 at 25°C.
To find the [OH-] of a solution with pH 10.88, we first find the [H+]:
pH = -log[H+]
10.88 = -log[H+]
[H+] = 10^(-10.88) = 1.4 × 10^(-11) M
Now we can calculate the [OH-]:
Kw = [H+][OH-]
1.0 × 10^-14 = (1.4 × 10^-11)[OH-]
[OH-] = (1.0 × 10^-14) / (1.4 × 10^-11) = 7.1 × 10^-4 M
Therefore, the [OH-] of the solution is 7.1 × 10^-4 M.
Explanation:
How do waves travel through space?
Answers
Explanation:
Electromagnetic waves are waves which can travel through the vacuum of outer space. Electromagnetic waves are created by the vibration of an electric charge. This vibration creates a wave which has both an electric and a magnetic component.
Can you round a number that has no zeros or a decimal? (significant figures)
Answers
Answer:
no.
Explanation:
if i initially have a gas with a pressure or 84.0kPa and a temperature of 35.0 C and i heat it to 230 C, what will the new pressure be? Assume the volume of the container is constant
Answers
The new pressure would be 552kPa
Calculate the pressure of a gasUsing the formula below
\( \frac{p1v1}{t1} = \frac{p2v2}{t2} \)
But new pressure is = P2.
Also volume is constant
From the formula above, make P2 the subject of formula;
\(p2 = \frac{p1v1t2}{t1v2} \)
But P1 = 84kPa
T1 = 35°C
T2 =230°C
V1= V2
\(p2 = \frac{84 \times 230}{35} \)
\(p2 = \frac{19320}{35} \)
P2 = 552kPa
Therefore, new pressure would be 552kPa
Learn more about pressure of a gas here:
https://brainly.com/question/25736513
Use the periodic table to determine which of the
following could be an isotope of bromine (Br).
Check all that apply.
Z = 79, A = 196
Z = 35, A = 79
A = 79, N =44
D Z = 44, N = 44
DONE
Answers
All atoms of uranium have the same.
1) Mass Number
2) Atomic Number
3) Number of Neutrons plus Protons
4) Number of Neutrons plus Electrons
Answers
All atoms of uranium have the same atomic number, which is 92. This means that every uranium atom has 92 protons in its nucleus.
The number of protons determines the element's identity, so all atoms of uranium have the same chemical properties.
The mass number of uranium, however, may vary between different isotopes. Uranium has two major isotopes, uranium-235 and uranium-238, which have 143 and 146 neutrons, respectively. The sum of protons and neutrons in the nucleus of an atom is called its mass number. Therefore, the mass number of uranium-235 is 235 (92 protons + 143 neutrons) and the mass number of uranium-238 is 238 (92 protons + 146 neutrons).
The number of neutrons plus electrons is not a commonly used term in describing atomic properties. The number of electrons in a neutral atom is equal to the number of protons, which is 92 in the case of uranium. However, the number of neutrons plus electrons may vary depending on the ionization state of the atom.
To know more about uranium: https://brainly.com/question/9099776
#SPJ4
PLEASE HELP! LOTS OF POINTS!!
The overall process of photosynthesis has the balanced chemical equation 6CO2 + 6H2O → C6H12O6 + 6O2. What does this tell you about the relative amounts of carbon dioxide and water consumed in this process?
Question 7 options:
A)
For every mole of carbon dioxide consumed, one mole of water is consumed.
B)
For every six grams of carbon dioxide consumed, one gram of water is consumed.
C)
For every gram of carbon dioxide consumed, one gram of water is consumed.
D)
For every six moles of carbon dioxide consumed, one mole of water is consumed.
Question 8 (5 points)
The possible products of a double displacement reaction in aqueous solution are (NH4)2S and NaNO3. Which of these possible products will form as a solid in this reaction?
Question 8 options:
A)
(NH4)2S
B)
Neither compound will form as a solid.
C)
NaNO3
D)
Both compounds will form as a solid.
Iron oxide reacts with carbon monoxide to produce iron and carbon dioxide, with the balanced chemical equation Fe2O3 + 3CO → 2Fe + 3CO2. What does this tell you about the relative amounts of iron oxide and iron consumed and produced in this equation?
Question 10 options:
A)
For every gram of iron oxide consumed, two grams of iron are produced.
B)
For every two grams of iron oxide consumed, one gram of iron is produced.
C)
For every two moles of iron oxide consumed, one mole of iron is produced.
D)
For every mole of iron oxide consumed, two moles of iron are produced.
Answers
Answer:
Did you find the answer>
Explanation:
I NEED HELP PLEASE, THANKS!
Electrochemistry is important in many aspects of daily life.
i. Define voltaic cell.
ii. Fill in the blanks for the drawing of a voltaic cell that’s made with copper/copper (II) nitrate (E° = 0.34 V) and zinc/zinc (II) nitrate (E° = –0.76 V). Briefly explain the role of the salt bridge.
iii. Using the equation E°cell = E°cathode – E°anode, calculate the overall cell potential for the cell.
iiii.
a. _____________
b. _____________
c. _____________
d. _____________
e. _____________
f. _____________
g. _____________
h. _____________
Answers
Answer:
Here's what I get
Explanation:
(i) Voltaic cell
A voltaic cell is a device that uses a chemical reaction to produce electrical energy.
(ii) Overall Cell Potential
The standard reduction potentials for the half-reactions are
ℰ°/V
Cu²⁺ + 2e⁻ ⇌ Cu 0.34
Zn²⁺ + 2e⁻ ⇌ Zn -0.76
The half-reaction with the more positive potential is the reduction half-reaction. It is the reaction that occurs at the cathode.
The half-reaction with the more negative potential is the oxidation half-reaction. It is the reaction that occurs at the anode.
We reverse that half-reaction and subtract the voltages to get the cell reaction.
ℰ°/V
Cathode: Cu²⁺ + 2e⁻ ⇌ Cu 0.34
Anode: Zn ⇌ Zn²⁺ + 2e⁻ -0.76
Cell: Zn + Cu²⁺ ⇌ Zn²⁺ + Cu 1.10
\(\mathcal{E}_{\text{cell}}^{\circ} = \mathcal{E}_{\text{cat}}^{\circ} - \mathcal{E}_{\text{an}}^{\circ} = \text{0.34 V} - \text{(-0.76 V)} = \text{0.34 V} + \text{0.76 V} = \textbf{1.10 V}\)
(iii) Diagram
The specific labels will depend on your textbook.
They are often as follows.
a. Electron flow
b. Voltmeter or lightbulb
c. Electron flow
d. Cathode or Cu
e. Cu²⁺(aq) and NO₃⁻(aq)
f. Salt bridge
g. Zn²⁺(aq) and NO₃⁻(aq)
h. Anode or Zn
The salt bridge enables ions to flow in the internal circuit and to maintain electrical neutrality in the two compartments.
It often consists of a saturated solution of KCl.
As Zn²⁺ ions form in the anode compartment, Cl⁻ ions move in to provide partners for them.
As Cu²⁺ ions are removed from the cathode compartment, K⁺ ions move in to replace them.
Answer:a. Electron flow
b. Voltmeter or lightbulb
c. Electron flow
d. Cathode or Cu
e. Cu²⁺(aq) and NO₃⁻(aq)
f. Salt bridge
g. Zn²⁺(aq) and NO₃⁻(aq)
h. Anode or Zn
Explanation:
This is the skeletal formula for which molecule? c3brcl brcl c3h6brcl c5brcl
Answers
The skeletal formula for the given structure is C₃H₆BrCl. Hence, the correct option is option (C).
What is Skeletal formula ?Skeletal formula is defined as the formula which shows the bond present between the atoms forming a compound.
Given skeletal formula is a condensed skeletal formula.
In this formula, the vertex or ends of a bond represents carbon atoms and rest of the positions are occupied by hydrogen atoms.
Carbon atom has a valency of 4 and it can bond to 4 other atoms only.
For the given structure,
Number of carbon atoms = 3
Number of hydrogen atoms = 6
Number of bromine atom = 1
Number of chlorine atom = 1
Hence, the chemical formula will be \(C_3H_6BrCl\).
Learn more about skeletal formula here ;
https://brainly.com/question/9418921
#SPJ1
Answer:
The answer is the third. C₃H₆BrCl
Explanation:
edge. You’re welcome
How many significant figures are in the measurement 1.3000 meters
Answers
Answer:
5
Explanation:
mark me brainliest!
According to our textbook, write the formula for the anhydrous compound that was part of the mixture called natron that was used by the Egyptians. What did they use this compound for and what was the name of the resulting hydrate that formed?
Answers
Answer:
The formula for the anhydrous compound that was part of the mixture called natron that was used by the Egyptians is Na2(CO3)10(H2O).
They use this compound for medicine, cookery, agriculture, in glass-making and to dehydrate egyptian mummies.
Compound of sodium carbonate and sodium bicarbonate was the name of the resulting hydrate that formed.
when an ionic compound such as sodium chloride (nacl) is placed in water, the component atoms of the nacl crystal dissociate into individual sodium ions (na ) and chloride ions (cl-). in contrast, the atoms of covalently bonded molecules (e.g., glucose, sucrose, glycerol) do not generally dissociate when placed in aqueous solution. which of the following solutions would be expected to contain the greatest number of solute particles (molecules or ions)? when an ionic compound such as sodium chloride (nacl) is placed in water, the component atoms of the nacl crystal dissociate into individual sodium ions (na ) and chloride ions (cl-). in contrast, the atoms of covalently bonded molecules (e.g., glucose, sucrose, glycerol) do not generally dissociate when placed in aqueous solution. which of the following solutions would be expected to contain the greatest number of solute particles (molecules or ions)? 1 liter of 1.0 m glucose 1 liter of 0.5 m nacl 1 liter of 1.0 m nacl and 1 liter of 1.0 m glucose will contain equal numbers of solute particles. 1 liter of 1.0 m nacl
Answers
The solution that would be expected to contain the greatest number of solute particles is 1 liter of 1.0 m NaCl. Option C is the correct answer.
Ionic compounds are chemical compounds composed of ions held together by electrostatic forces of attraction between oppositely charged ions.
When an ionic compound such as NaCl is placed in water, the component atoms of the NaCl crystal dissociate into individual sodium ions (\(\rm Na^+\)) and chloride ions (\(\rm Cl^-\)).
To determine which of the solutions would be expected to contain the greatest number of solute particles, we need to consider the number of solute particles produced by each molecule of the solute.
NaCl dissociates in water to produce two solute particles (\(\rm Na^+\)and \(\rm Cl^-\)), while glucose does not dissociate and therefore produces only one solute particle. Therefore, 1 liter of 1.0 m NaCl would contain twice as many solute particles as 1 liter of 1.0 m glucose.
In conclusion, 1 liter of 1.0 m NaCl solution would be expected to contain the greatest number of solute particles. The correct answer is option C.
Learn more about Ionic compounds here:
https://brainly.com/question/30420333
#SPJ4
The given question is in inappropriate manner. The correct question is:
When an ionic compound such as sodium chloride (NaCl) is placed in water, the component atoms of the NaCl crystal dissociate into individual sodium ions and chloride ions. In contrast, the atoms of covalently bonded molecules (e.g., glucose, sucrose, glycerol) do not generally dissociate when placed in aqueous solution. which of the following solutions would be expected to contain the greatest number of solute particles (molecules or ions)?
a. 1 liter of 1.0 m glucose
b. 1 liter of 0.5 m NaCl
c. 1 liter of 1.0 m NaCl
d. 1 liter of 1.0 m NaCl and 1 liter of 1.0 m glucose will contain equal numbers of solute particles.
Given the following equation, how many moles of Fe2O3 can be produced from 6.4 moles O2?
4Fe +3O2 - - > 2Fe2O3
Answers
Answer:
4.3 moles of Fe2O3
Explanation:
The calculations are shown in the picture.
Which orbital sublevel fills up immediately
BEFORE the 3d sublevel?
Answers
Answer:
the answer is c
Explanation:
Have a great day:)