Question

HNO, is a weak acid with a Ka of 40x101. Determine the H,O' ion concentration ([H'T and pH of a solution of 0.0025M HNO, . The"x is small" approximation is not valid, so the short cut cannot be used and a solution to a quadratic equation will be required. Show all 6 steps, using Example 15.7 on page 618 & 619 as a guide. When finished, fill in these terms for your solution of the quadratic. (Pages 580 & 581 (Ex. 14 10) give some more details on use of the quadratic equation if you need them ph- seps tabe) sfep d step 4a uadrate step 5 and pH step 6 check

I've spent over 2 hours working on this & I just can't get the same value for Ka when I check it at the end. I don't know where I am going wrong.. Please help. Thank you!

Answer 1