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The molar mass of hydrogen (H₂) is 2.02 g/mol. A sample contains 4.00 mol of H₂. What is the mass, in grams, of this sample?

User Pixxl
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1 Answer

3 votes

Answer : The mass of this sample is, 8.08 grams

Explanation : Given,

Molar mass of
H_2 = 2.02 g/mol

Moles of
H_2 = 4.00 mol

Formula used :


\text{Mass of }H_2=\text{Moles of }H_2* \text{Molar mass of }H_2

Now put all the given values in this formula, we get the mass of this sample.


\text{Mass of }H_2=4.00mol* 2.02g/mol


\text{Mass of }H_2=8.08g

Therefore, the mass of this sample is, 8.08 grams.

User Radu Chiriac
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