a)
Dane:
ms (masa NaNO₃) = 98g
mw (masa wody) = 100g
mr (masa roztworu) = ms + mw = 98g + 100g = 198g
* Obliczam stężenie procentowe(C%):
C% = ms * 100% : mr = 98g * 100% : 198g ≈ 49,5 %
b)
ms (masa NaNO₃) = 130g
mr (masa roztworu) = ms + mw = 130g + 100g = 230g
C% = ms * 100% : mr = 130g * 100% : 230g ≈ 56,5 %
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a)
Dane:
ms (masa NaNO₃) = 98g
mw (masa wody) = 100g
mr (masa roztworu) = ms + mw = 98g + 100g = 198g
* Obliczam stężenie procentowe(C%):
C% = ms * 100% : mr = 98g * 100% : 198g ≈ 49,5 %
b)
Dane:
ms (masa NaNO₃) = 130g
mw (masa wody) = 100g
mr (masa roztworu) = ms + mw = 130g + 100g = 230g
* Obliczam stężenie procentowe(C%):
C% = ms * 100% : mr = 130g * 100% : 230g ≈ 56,5 %