A solution is made by dissolving g of a substance of molar mass g/mol in water to make L of solution. What is its concentration in mol/L?
Answer and explanation
Correct answer: C. mol/L
- Step 1: Moles mol. Step 2. Concentration mol/L. **Answer: mol/L. Why not the others:** mol/L: That is the number of moles, not divided by the volume. mol/L: That is grams per litre, not mol/L. mol/L: That doubles the correct concentration.
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