Analiticka hemija

Submitted by milenab on Sat, 03/23/2019 - 21:48
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Izračunati proizvod rastvoljivosti CaCO3 (KspCaCO3), ako je R= 6,93×10-3g/L (Mr CaCO3=100g/mol).

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milicaradenkovic - Tue, 04/16/2019 - 17:19

CaCO3--------------->Ca2+ + CO32-

R=y/Mr=6.93*10(-3)/100=6.93*10(-5) mol/l

Ksp=(Ca2+)*(CO32-)=R*2

Ksp=(6.93*10(-5))*2=4.80*10(-9) mol2/dm6