8.) For the reaction c(s) + CO2(g) = 2CO(g) Kc = 168. A mixture contains some C(

Question

8.) For the reaction c(s) + CO2(g) = 2CO(g) Kc = 168. A mixture contains some C(s), [CO]-0.50 M and [CO2] = 0.75 M. Therefore the systema a. is not; the value of Q is 0.67 b. is not; the value of Q is 1.5 c. is; the value of Q is 0.67d. is not: the value of Q is 0.33 e. is; the value of Q is 0.33 at equilibrium, because 9.) Consider the equilibrium system C(s) + CO2(g) = 2CO(g) If more C(s) is added, the equilibrium willif CO is removed the equilibrium will a. shift to the left; shift to the left b. shift to the right; shift to the right c. shift to the right; shift to the left d. be unchanged; shift to the left e. be unchanged; shift to the right 10) Calculate the pH of a solution where [OH-] = 4.6 × 10-4. Is this solution acidic or a. 3.34; acidic b. 3.34; basic c. 9.40; basic d. 10.66; acidic e. 10.66; basic basic?

Explanation / Answer

8. C(s) + CO2(g) <---> 2CO(g)

Q = [CO]2/[CO2]

Q = 0.50*0.50/0.75

Q = 0.333

Not at equilibrium because a system is at equilibrium when Q=K.

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