Question

0.02%的稀硫酸ph是多少

Answer 1

0.02%的稀硫酸的密度约为1g/cm3,其物质的量浓度=1000X1X0.02%/98=0.002mol/L

c(H+)=0.004mol/L

PH=ph=-logc(H+)=-log0.004=2.4