Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

pH 1. Some raspberry juice has a pH of 3.40. What is its [OH^-]? 2. The concentr

ID: 841799 • Letter: P

Question

pH

1. Some raspberry juice has a pH of 3.40. What is its [OH^-]?


2. The concentration of H3O^+ in a solution is 2x10 ^-4 M. What is its OH concentration?

3. The pH of a 0.10 M NH4Cl solution is 5.13. The hydroxide-ion concentration of this solution is?


4. A solution that is formed by combining 200 ml of 0.15 M HCl with 300 ml of 0.090 M NaOH has an OH- concentration of


5.Calculate the pH of a 0.017 M Ba(OH)2 solution


6. When equal moles are dissolved in water, the hydride of which element shown below will form a solution with the highest pH? Explain! F, Cl, Br, I


7. Given the following equation :

NH3(aq) + H2O           NH4^+1(aq) + OH^-1(aq)
Identify the conjugate acid case pairs!

SHOW ALL WORK!

Explanation / Answer

1) pOH = 14.0-pH
pOH = 14.0-3.40
pOH = 10.60

[OH-] = 10^-pOH
[OH-] = 10^-10.6
[OH-] = 2.51*10^-11

2) Kw = [H?O?][OH?] = 1.0 x 10?