Oblicz zawartość procentową wody w siarczanie (VI) sodu-woda (1/7) - Na2SO4*7H2O.
mNa2SO4*7H2O=2*23u+32u+4*16u+14*1u+7*16u=268u
m7H2O=126u
268g hydratu---------100%
126g H2O--------------x%
x = 47% H2O
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mNa2SO4*7H2O=2*23u+32u+4*16u+14*1u+7*16u=268u
m7H2O=126u
268g hydratu---------100%
126g H2O--------------x%
x = 47% H2O