Posted by Samantha on .
What is the pH of a 0.0250 M solution of HCN? Ka = 4.0x10^10

Chemistry 
bobpursley,
HCN >< H+ CN
.250x <> x+ x
4E10=x^2/(.250x) appx x^2/.250
[H+]= sqrt (4*.250E10)
= 1E5
pH= 5
Posted by Samantha on .
What is the pH of a 0.0250 M solution of HCN? Ka = 4.0x10^10
HCN >< H+ CN
.250x <> x+ x
4E10=x^2/(.250x) appx x^2/.250
[H+]= sqrt (4*.250E10)
= 1E5
pH= 5