Sagot :
Cevap:
Açıklama:
Çözelti kaç gram => 200mL×1,25g/mL= 250g
Bu 250 gram çözeltinin yüzde kaçı çözücüdür? %100-%32=%68
250 gramın %68i kaç gramdır? => 250×68/100=170 gram olur.
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