QQuestionChemistry
QuestionChemistry
"What is the molar mass of hydrogen gas?
A) 2.00 g/mol
B) 6.02 x 1023 g/mol
C) 1.20 x 1023 g/mol
D) 1.00 g/mol"
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Answer
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Step 1:I'll solve this problem step by step, following the specified LaTeX formatting guidelines:
Step 2:: Understand the Composition of Hydrogen Gas
Hydrogen gas exists as a diatomic molecule, $$H_{2}$$.
This means each molecule consists of two hydrogen atoms.
Step 3:: Determine the Atomic Mass of Hydrogen
The atomic mass of hydrogen is approximately $$1.008 \text{ g/mol}$$.
Step 4:: Calculate the Molar Mass of Hydrogen Gas
Since hydrogen gas is $$H_{2}$$, we multiply the atomic mass by 2:
\text{Molar Mass} = 1.008 \text{ g/mol} \times 2 = 2.016 \text{ g/mol}
Step 5:: Round to the Nearest Whole Number
Rounding $$2.016 \text{ g/mol}$$ gives us $$2.00 \text{ g/mol}$$.
Final Answer
Explanation: The molar mass of hydrogen gas (H_{2}) is 2.00 g/mol because each hydrogen molecule contains two hydrogen atoms, each with an atomic mass of approximately 1.008 g/mol.
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