A 5.0% solution of NaCl by mass has approximately how many moles of NaCl per 100 g of solution? (M(NaCl) = 58.5)
- Acheck_circle
0.085 mol
- B
5.0 mol
- C
0.85 mol
- D
0.50 mol
Explanation
5.0 g NaCl / 58.5 g/mol ≈ 0.0855 mol ≈ 0.085 mol.
Elemental Composition of Pure Substances
AP Chemistry· difficulty 3/5
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