mH2O=100g-30g
mH2O=70 g
30 g substancji---70 g H2O
xg substancji---100 g H2O
x=42,86 g
R: 42,86 g/100 g H2O
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mH2O=100g-30g
mH2O=70 g
30 g substancji---70 g H2O
xg substancji---100 g H2O
x=42,86 g
R: 42,86 g/100 g H2O