The mass of glycerol that must be added to 100 g of a 10% glycerol solution to obtain a solution with a mass fraction of 15% is

bystudin | May 28, 2020 | Education

Let m be the mass of added glycerin (in grams), then
m + 0.1 * 100 = 0.15 * (m + 100)
m + 10 = 0.15m + 15
0.85m = 5
m = 5.88

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