Oblicz ile moli znajduje sie w 300g 20% roztworu NaOH.
dane:
Cp=20%
mr=300g
M=23g/mol+16g/mol+1g/mol = 40g/mol
ms=Cp*mr=20%*300g=60g.
100% 100%
n=ms = 60g = 1,5mola
M 40g/mol
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dane:
Cp=20%
mr=300g
M=23g/mol+16g/mol+1g/mol = 40g/mol
ms=Cp*mr=20%*300g=60g.
100% 100%
n=ms = 60g = 1,5mola
M 40g/mol