What amount, in moles, is present in 5.85 g of sodium chloride? (M(NaCl) = 58.5 g/mol)
Answer and explanation
Correct answer: B. 0.100 mol
- Step 1: n = m / M.
- Step 2: n = 5.85 / 58.5 = 0.100 mol.
Answer
0.100 mol.
Why not the others: 0.100 g has the wrong unit; 1.00 and 10.0 slip a factor of 10 or invert the ratio.
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