Answer:
The number of atom is 3.67*10^24 atoms
Explanation:
Molar mass of methane CH4 is 16.0g/mol
Using this to divide the mass
24.4g/16.0 = 1.525mol
1 mol CH4 contains 1 mol of Carbon C and 4 mol of hydrogen H, so 1.525mol contains 4(1.525)=6.1 molH
Using avogadro number : (6.1mol)(6.02*10^23)
= 3.67*10^24 atoms
There are 3.66 × 10^24 hydrogen atoms in 24.4 g of methane (CH4). This is calculated by first finding the number of moles of CH4 and then using Avogadro's number to determine the total number of molecules, which is finally multiplied by 4 (the number of hydrogen atoms per CH4 molecule).
The question asks how many atoms of hydrogen are in 24.4 g of methane (CH4). Methane has a molecular formula of CH4, indicating that each molecule contains 4 hydrogen atoms. The molar mass of methane is 16.04 g/mol (12.01 g for carbon + 4 × 1.008 g for hydrogen).
First, calculate the number of moles of methane:
24.4 g CH4 × (1 mol CH4 / 16.04 g CH4) = 1.52 mol CH4
Then, multiply by Avogadro's number to find the total number of methane molecules:
1.52 mol CH4 × (6.022 × 1023 molecules/mol) = 9.15 × 1023 molecules of CH4
Since each molecule of methane has 4 hydrogen atoms, we get:
9.15 × 1023 molecules CH4 × (4 H atoms/molecule) = 3.66 × 1024 hydrogen atoms.
the answer is B.repair tissue
pressure that is exerted by one gas as if it occupied a container by itself
half of the pressure that is exerted by the gases of a mixture on the container
Osum of the individual pressures that are exerted by two or more gases
The pressure that is exerted by one gas as if it occupied a container by itself best defines partial pressure in a mixture of gases. Therefore, option B is correct.
Partial pressure is defined as the pressure exerted by each gas in a container filled with more than one gas. The pressure of any gas contained within the container is referred to as its partial pressure.
The concept of partial pressure is derived from the fact that each specific gas contributes a portion of total pressure, which portion is the partial pressure of that gas. It's almost like using a percentage or fraction of the total to describe all the parts.
A gas's partial pressure is a measure of the thermodynamic activity of its molecules. Gases dissolve, diffuse, and react in gas mixtures and liquids based on their partial pressures, not their concentrations.
Thus, option B is correct.
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Answer:
pressure that is exerted by one gas as if it occupied a container by itself.
(2) An acid is an H+ donor,. and a base is an H+ acceptor.
(3) An acid is an H- acceptor, and a base is an H-donor.
(4) An acid is an H- donor, and a base is an H acceptor.
Explain what happens to the temperature of ice while it melts
the overall numbers of atoms only
both the overall types and numbers of atoms
neither the overall types or numbers of atoms
Both the overall types and numbers of atoms stay the same during chemical reactions.