po rozpuszczeniu 40g cukru otrzymano roztwór o stężeniu 20%. Oblicz masę powstałego roztworu.
Cp=ms*100%/mr
Cp*mr=ms*100%
mr=ms*100%/Cp
mr=40g*100%/20%
mr=200g
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Cp=ms*100%/mr
Cp*mr=ms*100%
mr=ms*100%/Cp
mr=40g*100%/20%
mr=200g