calculate the mass of sodium cloride required to prepare its 20%solution in 100g of water
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Mass by mass % = (Mass of solute / Mass of solution) × 100
20 = [M / (M + 100)] × 100
1/5 = [M / (M + 100)]
M + 100 = 5M
4M = 100
M = 25 g
Mass of NaCl required is 25 g
20 = [M / (M + 100)] × 100
1/5 = [M / (M + 100)]
M + 100 = 5M
4M = 100
M = 25 g
Mass of NaCl required is 25 g
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