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5. A sample of orange juice is found to have a pH of 3.45. What is...

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Chemistry

5. A sample of orange juice is found to have a pH of 3.45.What is the hydroxide concentration in the orange juice?
a. 1.03x10-5
b. 10.55x10-11
c. 3.16x10-4
d. 2.818x10-11

6. The Kc for the following reaction is 3.2. What is the Kp at230 K?
PCl5 (g) ↔ PCl3 (g) + Cl2 (g)
a. 60.4
b. 1139
c. 30.2
d. 22.8

7. A + B + C à D + E Kc = 1.39
D + E à F + G Kc = 2.35
What is the Kc for this reaction: 2F + 2G à 2A + 2B + 2C
a. 0.094
b. 0.306
c. 0.612
d. 0.450

8. If the overall pressure on a container with the followingreaction occurring inside is increased, what will occur?
2CH4 (g) ↔ C2H2 (g) + 3H2 (g)
a. shift to the left
b. shift to the right
c. no shift to either side

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