Question

向400moL稀硫酸和稀盐酸的混合溶液中加入足量氯化钡溶液充分反应后,

Answer 1

n(BaSO4)=2.33g/(233g/mol)=0.01mol

n(H+)1=0.01*2=0.02mol

n(H+)=0.1mol/L

n(H+)2=0.1-0.02=0.08mol

n(HCl)=0.08/1=0.08mol

n(H2SO4)=0.02/2=0.01mol

c(HCl)=0.08mol/0.4L=0.2mol/L

c(H2SO4)=0.01mol/0.4L=0.025mol/L