__________ lenses refract light rays in toward a central point. When this lens is held close to your eye, the image is magnified
2 answers:
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Answer:
The number of hydrogen atoms is 4.96x10²⁴.
Explanation:
The number of atoms can be found with the following equation:
Where:
N: is the Avogadro's number = 6.022x10²³ atoms/mol
η: is the number of moles of hydrogen
n: is the number of hydrogen atoms
First, we need to find the number of hydrogen moles. The number of moles of CH₄ is:
Where:
m: is the mass of methane = 33 g
M: is the molar mass of methane = 16.04 g/mol
Now, since we have 4 hydrogen atoms in 1 mol of methane, the number of moles of hydrogen is:
Hence, the number of hydrogen atoms is:
Therefore, the number of hydrogen atoms is 4.96x10²⁴.
I hope it helps you!