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Cp=ms/mr x 100%
0,15=8/mr
mr=53,3g roztworu
2.
0,02=ms/80g
ms=1,6g soli
x-100%
x=8*100/15
x=53 i 1/3 (g)
2. 0.02*80g=1,6g
mr = 8g:15% = 8g:0,15 ≈ 53,3g
zadanie 2
ms = 2%*80g = 0,02*80g = 1,6g