250 g = 100%
100 g = x (%)
250 * x = 100 * 100
250x = 10 000 / : 250
x = 40%
Stężenie procentowe roztworu to 40%
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250 g = 100%
100 g = x (%)
250 * x = 100 * 100
250x = 10 000 / : 250
x = 40%
Stężenie procentowe roztworu to 40%