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Chemistry help involving acids and base pH pOH molarity?
1. Calculate the molarity (M) of a solution of the strong acid HClO4 if the pH is 1.33.
2. Calculate the pH of a 2.74×10-1 M solution of the strong acid CF3CO2H.
3. Calculate the molarity (M) of a solution of the strong base KOH if the pOH is 1.55.
4. Calculate the pOH of a 1.34×10-3 M solution of the strong base KOH.
PLease explain and you do not have to do all of them but any help is appreciated so please do help! :)
2 Answers
- ErikaLv 45 years ago
A. Kb is one million.8 X 10^-5 for NH3 so; one million.8 X 10^-5 = X squared/.6 X = .00329 = OH conc, so; pOH = -log .00329 = 2.forty 8 so pH = 11.fifty two B. KOH is powerful base so OH conc is .one million so pOH is one million and pH is 13 C. Nitric is a sturdy acid so that's one million X 10^-2 M D. one million.seventy 8 X 10^-4 = (one million X 10^-2)squared/ X X = .562 M
- Anonymous1 decade ago
i study chemistry but f**k me that is hard. sorry cant do it.
