Search results

  1. N

    Chemistry Help with monoprotic aicds and pH (multiple choice)?

    Is there an easier way to understand this? I spent like a good 1 and a half trying figure what it was trying to say and then I still don't get what it's saying...sorry. Problem: Two monoprotic acid solutions (A and B) were titrated with identical NaOH solutions. The volume to reach the...
  2. N

    Chemistry Help-Calculate the concentration of all species in a 0.12 M KF solution.?

    Okay so I was able to solve this when it was just [OH-] and [H3O+], but this completely threw me off. I'm totally confused about this. Please help and please give step to step instructions because I really want to learn and understand this. Thanks Problem: Calculate the concentration of all...
  3. N

    help again with chemistry-determining Kb for base?

    Problem: A 0.140 M solution of a weak base has a pH of 11.28. Determine Kb for the base. So I tried: 11.28=x+log(.140) x=pKa=12.1339 then: pKa=-logKa 10^-12.1339=7.35e-13 Ka*Kb=Kw Kw=1x10^-14 therefore: 1x10^-14/7.35x10^-13=.01361 and that's not the right answer at all so please help--what...
Back
Top