Sodium chloride weighing 15 grams was dissolved in a solution weighing 50 grams. What is the Mass fraction of salt in the solution?

Given: m (p-pa) = 50 g; m (NaCl) = 15 g Find: co (NaCl) -?
Decision:
Approx ./ (fraction)
m (in-va) / m (p-pa) = 15g / 50g = 0.3 * 100% = 30%
Answer: 30%



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