Deviation will occur for volume assumption at ____________
A. Low Pressure
B. High Pressure
C. Constant Pressure
D. 1 atm

B. is it right?​

The mass of the rectangular piece of copper is 18,869 g (approx).In conclusion, the mass of a rectangular piece of copper with dimensions 24.4cm x 11.4 cm x 7.9 cm and a density of 8.92 g/cm³ is 18,869 g (approx.).

The given dimensions of the rectangular piece of copper are:Length = 24.4 cmWidth = 11.4 cmHeight = 7.9 cmThe formula to calculate the mass of an object is given by;

Mass = Density x Volume

Here, the density of copper is given as 8.92 g/cm³.

Therefore, the first step is to calculate the volume of the rectangular piece of copper.The formula to calculate the volume of a rectangular object is given by:

Volume = Length x Width x Height

So,Volume = 24.4 cm x 11.4 cm x 7.9 cm= 2115.432 cm³Now we will use the mass formula:

Mass = Density x Volume= 8.92 g/cm³ x 2115.432 cm³= 18,869.27824 g= 18,869 g (approx.)

For more such questions on copper

https://brainly.com/question/29176517

#SPJ8

Answer:

Copper will start to react with the oxygen in the air to form copper oxide. The copper oxide will continue reacting to oxygen over time. As the copper oxide continues to react with carbon dioxide and water in the air it coats the surface with that iconic blue-green patina colour

There are approximately 0.0105 moles or \(6.3 * 10^20\) hydrogen atoms in a 100. mg dose of acalabrutinib.

To calculate the number of hydrogen atoms in acalabrutinib (\(C_{26} H_{23} N_{7} O_{2}\)), we need to first determine the number of moles of acalabrutinib present in the 100. mg dose, and then use the molecular formula of acalabrutinib to find the number of hydrogen atoms. The molar mass of acalabrutinib can be calculated by adding the atomic masses of its constituent atoms: Molar mass of acalabrutinib = (26 *12.01) + (23 * 1.01) + (7 * 14.01) + (2*16.00) + (7 * 1.01) = 465.51 g/mol. Now we can calculate the number of moles of acalabrutinib in a 100. mg dose: Number of moles = mass ÷ molar mass

= 0.1 g ÷ 465.51 g/mol

= \(2.15 *10^-4 mol\)

Finally, we can use the molecular formula of acalabrutinib to find the number of hydrogen atoms: Number of hydrogen atoms = 23 * (1 H atom per molecule) x (\(2.15 * 10^-4 mol\))

= 0.0105 mol H atoms

To learn more about hydrogen atoms here:

https://brainly.com/question/29695801

#SPJ1

The balanced molecular equation for the reaction between sodium hydroxide (NaOH) and aluminum chloride (\(AlCl_3\)) in aqueous solution can be written as follows: 2NaOH(aq) + 3\(AlCl_3\)(aq) → 3NaCl(aq) + \(Al(OH)_3\)(s)

In this reaction, sodium hydroxide (NaOH) reacts with aluminum chloride (\(AlCl_3\)) to form sodium chloride (NaCl) and aluminum hydroxide (\(Al(OH)_3\)). The coefficients in the balanced equation indicate the stoichiometric ratio between the reactants and products.

The physical states of the substances are indicated by the symbols (aq) for aqueous solutions and (s) for the solid precipitate.

The reaction is a double-displacement reaction, also known as a precipitation reaction. Double-displacement reactions involve the exchange of ions between two compounds, resulting in the formation of a precipitate.

In this case, sodium hydroxide and aluminum chloride react to form sodium chloride and aluminum hydroxide, with aluminum hydroxide being the white solid precipitate.

It's worth noting that the actual reaction might involve hydrated forms of the compounds, such as NaOH·x\(H_2O\) and \(AlCl_3\)·y\(H_2O\). However, for simplicity, these hydrated forms are not included in the balanced equation.

Overall, the balanced equation represents the chemical reaction between sodium hydroxide and aluminum chloride, showing the reactants, products, and their stoichiometric ratios.

For more such question on balanced molecular equation visit:

https://brainly.com/question/11904811

#SPJ8

Answer:

Not necessarily required, the water bath  is used to give energy  for reaction and it does not invlove in the reaction. So just normal water can be used in water bath.

Explanation:

Answer:

Which atom is oxidized in the reaction of benzhydrol with bleach?

Explanation:

n this experiment, students will perform a simple oxidation reaction of a secondary

alcohol. Recall that Oxidation Is a Loss of electrons while Reduction Is a Gain of electrons (OIL

RIG). In order to apply this mnemonic, you must know the oxidation states of each atom within

the compound, with particular interest on carbon. Carbon can carry oxidation states ranging

from -4 to +4. A few examples are shown in Figure 1 below. It is also common for carbon to

carry an oxidation state of -3, -1, +1, and +3.

Figure 1. Examples of carbon’s oxidation levels.

You may have noticed that all of the compounds in Figure 1 are neutral and carbon has

zero formal charge in each example. The concept of oxidation state and formal charge are

similar with one important difference in the calculation. Both are calculated by taking the

difference between the valence electrons (from the periodic table) and the number of electrons

belonging to that atom within the molecule. For a given atom, the valence electrons will never

change but the electrons ‘belonging’ the atom in the molecule will vary depending on number of

lone pairs and attachments to more or less electronegative atoms. The important difference in

the calculation of oxidation states and formal charge is based on the following assignment of

bonding electrons (Figure 2). This is how the highlighted carbon in ethanol can have an

oxidation state of -1 but a formal charge of zero.

- Oxidation states assign bonding electrons to the more electronegative atom in a bond,

except when the two atoms are the same and the bonding electrons are split equally.

Answer:

so the reaction would probably would be a chemical reaction

"When benzophenone reduces to diphenylmethanol, leftover products include the CH2OH and NaBH3 species. The energetic CH2OH and NaBH3 quickly bond to give (CH2OH)H3B-Na+. This complex is the main second product of benzophenone reduction."

Reactant Ratios

"In life, four benzophenone molecules react with each BH4 complex. Since four benzophenone molecules each attract a hydrogen atom from the “BH4” hydrogen donor, four “CH2OH”s bond with each boron (B) atom. Realistically, the secondary product is (CH2OH)4B-Na+ and four diphenylmethanol molecules. Focusing on one benzophenone molecule at a time is helpful for explaining and understanding reaction steps."

i hope it helps

=>

Answer:

504.57 K.

Explanation:

From the question given above, the following data were obtained:

Number of mole (n) = 6.81 moles

Pressure (P) = 2.99 atm

Volume (V) = 94.35 L

Gas constant (R) = 0.0821 atm.L/Kmol

Temperature (T) =.?

Using the ideal gas equation, the temperature of the ideal gas can be obtained as follow:

PV = nRT

2.99 × 94.35 = 6.81 × 0.0821 × T

282.1065 = 0.559101 × T

Divide both side by 0.559101

T = 282.1065 / 0.559101

T = 504.57 K.

Thus, the temperature of the ideal gas is 504.57 K.

Answer:

Al2O3

................

....-_-

umm explanation pls so i answee

Answer: :)

The temperature of a gas is directly proportional to the average kinetic energy of the particles of the gas. But the total kinetic energy of the molecules of a gas is a measure of the internal energy or thermal energy of the gas.

Explanation:

Answer:

this atom has nine electrons

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.

For more such question on aluminum visit:

https://brainly.com/question/30451292

#SPJ8

Valence electrons are electrons found in the valence shell of atoms and they determine the reactivity of the atom.

Valence electrons refers to the electrons which are found in the outermost or valence shell of atoms.

Electrons are easily removed or added to the valence shell of atoms.

Therefore, valence electrons determine the reactivity of atoms.

This implies that atoms with few or almost full valence electrons are very reactive.

Learn more about valence electrons at: https://brainly.com/question/371590

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

For more such questions on masses visit:

https://brainly.com/question/24191825

#SPJ8

The volume of the second vessel is approximately 450 mL. In physics and chemistry, pressure is an important concept that is used to describe the behavior of gases, liquids, and solids under different conditions.

What is Pressure?

It is a scalar quantity and is expressed in units such as pascals (Pa), pounds per square inch (psi), atmospheres (atm), or torr. Pressure is created by the collision of particles (atoms or molecules) with the walls of a container, and it can be influenced by factors such as temperature, volume, and the number of particles present.

The first step is to use the combined gas law to relate the initial conditions to the final conditions:

(P1V1)/T1 = (P2V2)/T2

where P is pressure, V is volume, and T is temperature, with subscripts 1 and 2 representing the initial and final conditions, respectively.

Plugging in the given values, we get:

(895 torr)(550.0 mL)/(313.15 K) = (745 torr)(V2)/(273.15 K)

Solving for V2, we get:

V2 = (895 torr)(550.0 mL)/(313.15 K) * (273.15 K)/(745 torr) ≈ 450 mL

Therefore, the volume of the second vessel is approximately 450 mL.

Learn more about Pressure from given link

https://brainly.com/question/28012687

#SPJ1

This technique has been used to identify the presence of gases such as oxygen, methane, and carbon dioxide in the atmospheres of exoplanets.  

i) To estimate the frequency of the violet (leftmost) emission, we can use the equation v = c/λ, where v is frequency, c is the speed of light (3.00 x 10^8 m/s), and λ is the wavelength of the emission in meters. The wavelength of the violet emission is 400 nm or 400 x 10^-9 m, so the frequency can be calculated as v = (3.00 x 10^8 m/s) / (400 x 10^-9 m) = 7.50 x 10^14 Hz.

ii) To estimate the energy of the violet emission, we can use the equation E = hv, where E is energy, h is Planck's constant (6.63 x 10^-34 Js), and v is frequency in Hz. Substituting the frequency calculated in part (i), we get E = (6.63 x 10^-34 Js) x (7.50 x 10^14 Hz) = 4.97 x 10^-19 J.

b. The spectral lines are produced by the electrons within the atoms of this element, which can absorb or emit specific amounts of energy to move between different energy levels. These energy transitions result in the emission or absorption of photons with specific wavelengths and frequencies, giving rise to the observed emission spectrum.

c. The violet emission line represents the photon with the most energy since it has the shortest wavelength (400 nm) and highest frequency (7.50 x 10^14 Hz) among the lines shown. This highest energy does not necessarily represent the energy of the valence electrons, but rather corresponds to the specific energy transitions occurring within the atoms of the element.

d. Emission spectra can be used to determine the gases present in the atmosphere of a far-away planet by analyzing the specific wavelengths of the emitted or absorbed light from the planet. Each gas has a unique emission or absorption spectrum, allowing scientists to identify the gases present in the planet's atmosphere.

To know more about Wavelength , visit :

https://brainly.com/question/13533093

#SPJ1

Answer:

no reaction occurs .that is no product

Answer:

Density

Explanation:

some objects are less dense so e.g balloons, they stand more chance of floating on water than other objects that have more density

we would need 2625.13 grams (or 2.62513 kilograms) of NaCl.

To calculate the mass of NaCl required to produce a 26.4 mol/L solution with a 1.7 L volume, we need to use the formula that relates the mass of solute, moles of solute, and molarity:Molarity (M) = moles of solute / liters of solution Rearranging this formula, we get:moles of solute = Molarity (M) x liters of solutionWe can use this formula to find the moles of NaCl needed:moles of NaCl = 26.4 mol/L x 1.7 L = 44.88 molNow, we can use the molar mass of NaCl to convert from moles to grams. The molar mass of NaCl is 58.44 g/mol:mass of NaCl = moles of NaCl x molar mass of NaClmass of NaCl = 44.88 mol x 58.44 g/mol = 2625.13 gTo produce a 26.4 mol/L solution with a 1.7 L volume.

for more question on NaCl

https://brainly.com/question/23269908

#SPJ8

Answer:

Sound travels through the air in approximately 332 metres per second?

Explanation:

is this what you are looking for>

Answer:

fecl3 contains ionic bonds

Answer:

First box: 4

Second box: 2

Third box: 3

Fourth box: 1

Explanation:

The balanced equation of the reaction is:C5H12 + 8O2 → 5CO2 + 6H2OFrom the equation, it shows that 8 moles of oxygen is needed to burn 1 mole of pentane. The volume of oxygen needed for the entire burning process of 18 grams of pentane in normal conditions is 44.86 L.

First, let's convert 18 grams of pentane to moles using the molar mass of pentane (C5H12) as follows:Mass of pentane = 18 g Molar mass of pentane (C5H12) = 5(12) + 12(1) = 72 g/molNumber of moles of pentane = Mass/Molar mass = 18/72 = 0.25 moles

Now, to find the volume of oxygen needed for its entire burning process in normal conditions, we'll use the Ideal Gas Law equation as follows: n = PV/RT where :n = number of moles of the gas V = volume of the gas (in liters)P = pressure of the gas (in atmospheres)R = Universal Gas Constant = 0.0821 L· atm /K· molT = temperature of the gas (in Kelvin)From the equation, we know that 8 moles of oxygen are needed to burn 1 mole of pentane.

Therefore, the number of moles of oxygen needed to burn 0.25 moles of pentane will be: n = 8 × 0.25 = 2 moles The temperature and pressure are normal conditions, which is 0°C and 1 atm respectively. Let's convert the temperature to Kelvin:T = 0 + 273 = 273 K Substituting the values into the Ideal Gas Law equation gives: P × V = nRT Rearranging the equation gives: V = nRT/P  Substituting the values, we get: V = 2 × 0.0821 × 273/1V = 44.86 L

Therefore, the volume of oxygen needed for the entire burning process of 18 grams of pentane in normal conditions is 44.86 L.

For more such questions on oxygen

https://brainly.com/question/26073928

#SPJ8

Eukaryotic and prokaryotic cells are similar in having ribosomes, cell membrane, and DNA, and have the same system of DNA replication.

Prokaryotic cells are primitive cells with no nucleus or membrane-bound organelles. The cells usually have cell walls whose content can vary depending on the organism. Their genetic materials lie freely within the cytoplasm.

Eukaryotic cells, on the other hand, are plant and animal cells with nuclei and membrane-bound organelles such as mitochondrion and chloroplast. Plant cells have cell walls while animal cells do not. The genetic materials of eukaryotic cells lie largely in the nuclei while organelles like mitochondrion and chloroplast have also been shown to contain some DNA.

While both cells are different in a lot of ways, they also have some similarities. These include:

More on cells can be found here: https://brainly.com/question/12129097

#SPJ1

Answer:

Bromic Acid

Explanation:

Answer:

Explanation:

protons = mass - neutrons

protons are plus so there are 8 protons.

mass = 15

8 = 15 - neutrons

-7 = - neutrons

neutrons = 7

The first two answers are the same and both are correct.

Answer:

a

Explanation:

Answer:

a 10,00 year-old coral reef ecosystem

A 10,000 year-old coral reef ecosystem will have more competition than cooperation.

Charles Darwin suggested  that evolution works on the theory of survival of the fittest.

This means that individuals in a population, or community, are more likely to survive if they are fit – in a genetics sense. Every organism is slightly different to every other, even those of the same species.

So back then everyone was trying to survive more than cooperate and trying to be genetically evolved.

Therefore there was more competition than cooperation.

To know more about Charles Darwin's Theory

https://brainly.com/question/16484823

#SPJ2