Ille gram substancji należy rozpuścić w 200g wody aby otrzymać roztwór 20%
Cp= ms/mr * 100%
20% = ms / (200g+ms) * 100%
0,2 = ms / (200g+ms)
40g+ 0,2ms=ms
40g = 0,8ms
ms = 50g
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Cp= ms/mr * 100%
20% = ms / (200g+ms) * 100%
0,2 = ms / (200g+ms)
40g+ 0,2ms=ms
40g = 0,8ms
ms = 50g