oblicz ile gramów czystego kwasu fosforowego VI znajduje się w 150g 10% roztworu tego kwasu
mr=150g
cp=10% mr=100
ms=? ms=cp
ms=150g* 10% / 100%= 150/10g = 15g
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mr=150g
cp=10% mr=100
ms=? ms=cp
ms=150g* 10% / 100%= 150/10g = 15g