m(Pb) = 6 г
m(Mg) = 17 г
m(суміші) = 6 + 17 = 23 г
W(Pb) = (6 : 23) × 100% = 26%
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m(Pb) = 6 г
m(Mg) = 17 г
m(суміші) = 6 + 17 = 23 г
W(Pb) = (6 : 23) × 100% = 26%