Question

室温时氢氧化钙的溶度积Ksp=4.7×10^-6,室温时将9mL0.02mol·L^-1的氯化钙溶液与1mL pH=13

Answer 1

[Ca2+]=0.02*0.009/(0.009+0.001)=0.018mol/L,PH=13即[OH-]=0.1*0.001/(0.009+0.001)=0.01mol/L,[Ca2+]*[OH-]^2=0.018*0.01*0.01=1.8*10^-6