Chemistry, 09.03.2021 23:20, gracetay6873

.Peste 200 g soluţie de clorură de sodiu de concentraţie 10% se adaugă 400g soluţie de clorură 10p de sodiu de concentraţie 20% şi 400g apă. Ce concentraţie procentuală are soluţia finală?

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.Peste 200 g soluţie de clorură de sodiu de concentraţie 10% se adaugă 400g soluţie de clorură 10p d...