Question

Ile g HNO3 zawiera 200 cm3 50% HNO3, gęstość 50%HNO3=1,31g/cm3

Answer 1

MHNO3= 1+14+3*16=63g
V=200cm3
Cp=50%
d=1,31 g/cm3
d=m/v
mr=d*V
mr=262g
50%=ms/262g*100%
50%/100%*262=131
ms=131g
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