What is the molar mass (in g/mol) of ? (H = 1, C = 12, N = 14, O = 16, Na = 23, S = 32, Ca = 40)
Answer and explanation
Correct answer: A. 98
- Step 1: List the constituent atoms in sulfuric acid (): hydrogen atoms, sulfur atom, and oxygen atoms.
- Step 2: Multiply each element's count by its standard atomic mass (, , ): .
- Step 3: Sum the contributions: .
Answer
98.
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- What is the molar mass (in g/mol) of ? (H = 1, C = 12, N = 14, O = 16, Na = 23, S = 32, Ca = 40)