Amount of substance

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Question 56
Medium

A research chemist prepares a standard non-aqueous electrolyte solution by dissolving 7.5 g of an active organic salt (relative molecular mass 150.0) in 50.4 g of an organic solvent (relative molecular mass 84.0).

What is the mole fraction of the organic salt in this solution?

3.2×10−23.2 \times 10^{-2}3.2×10−2

7.7×10−27.7 \times 10^{-2}7.7×10−2

8.3×10−28.3 \times 10^{-2}8.3×10−2

1.3×10−11.3 \times 10^{-1}1.3×10−1

Amount of substance Questions

  1. A Level
  2. /Chemistry
  3. /Amount of substance