Two solutions were mixed: one weighing 120 g and with a mass fraction of salt of 15%, the other weighing 125 g and with a mass fraction of the same salt of 10%. The mass of salt contained in the resulting solution is equal to
Determine the masses of substances in each solution
by the formula m of the substance = ω * m of the solution ω = m of the substance / ()
m substances 1 = 120 * 0.15 = 18g
m substances 2 = 125 * 0.1 = 12.5 g
m substances 3 = 30.5 g
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