25g—-100g roztworu
X——300g
X=75g <—- tyle gramów soli NaNO3 potrzeba
300g-75g=225g H2O
1g——-1cm3
225g——x
X=225cm3 H2O
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25g—-100g roztworu
X——300g
X=75g <—- tyle gramów soli NaNO3 potrzeba
300g-75g=225g H2O
1g——-1cm3
225g——x
X=225cm3 H2O