Knowing the density of hydrogen and Avogadro’s number, determine the mass of the hydrogen molecule.
| September 10, 2021 | education
Given:
Hydrogen;
Molar mass M (H2 O) = 2 * 10 ^ (- 3) kg / mol;
Avogadro’s number Na = 6, 02 * 10 ^ 23 * 1 / mol;
Find the mass of hydrogen;
Solution:
The mass of hydrogen is:
m (H2 O) = M (H2 O) / Na = 2 * 10 ^ (- 3) (kg / mol) / (6.02 * 10 ^ 23) 1 / mol = 2 * 10 ^ (- 3) / 6. 02 * 10 ^ 23 ru = 2/6. 02 * 10 ^ (- 3 – 23) kg = 0.33 * 10 ^ (- 26) kg.
Answer: The mass of hydrogen is 0.33 * 10 ^ (- 26).
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