Practice question
Question
What is the mass percentage of KOH in a solution made by dissolving 5.6 g of KOH in 44.4 g of water? (Molar mass: KOH = 56 g/mol)
Explanation
Total mass = 5.6 + 44.4 = 50 g. Mass % = (5.6/50) × 100 = 11.2%.
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