Odpowiedź :
m 3H3PO4=3*98u=294u
m 50H2O=50*18u=900u
mr=294g+900g=1194g
Cp=ms*100%/mr
Cp=294*100/1194
Cp = 24,6%
mH3PO4=3*1u+31u+4*16u=98u
ms=3*98g=294g
mH2O=2*1u+16u=18u
mr=50*18g+294g=1194g
Cp=?
Cp=ms/mr * 100%
Cp=294g/1194g * 100%
Cp=24,6%
Odp: D