QQuestionChemistry
QuestionChemistry
What is the molar mass of sodium oxide (Na₂O)?
A. 30 grams
B. 54.99 grams
C. 61.98 grams
D. 38.99 grams
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Answer
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Step 1:I'll solve this step-by-step using precise LaTeX formatting:
Step 2:: Identify the chemical formula
- The chemical formula is $$Na_{2}O
- This means we need to calculate the molar mass by adding the atomic masses of sodium and oxygen
Step 3:: Look up atomic masses
- Sodium (Na): $$22.99 \text{ g/mol}
- Oxygen (O): 16.00 \text{ g/mol}
Step 4:: Calculate the molar mass
- Total molar mass: $$45.98 + 16.00 = 61.98 \text{ g/mol}
- Oxygen: 16.00 \text{ g/mol} \times 1 = 16.00 \text{ g/mol}
Step 5:: Verify the calculation
\text{Molar Mass} = (2 \times m_{Na}) + m_{O} = (2 \times 22.99) + 16.00 = 61.98 \text{ g/mol}
Final Answer
C. 61.98 grams
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