All work must be shown to receive credit Multiple choice. Choose the one alterna

Question

All work must be shown to receive credit Multiple choice. Choose the one alternative that best completes the statement or answers th question. 1.The equilibrium constant, K, for the reaction below is: coj La2(C204)al (C) Ke [CO'(CO21 (D) Kc= [C02]3[C0]u.azoal (E) Kc = [coal.(COP[LazOnl 2. Ks for benzoic acid is 6.28*10s and Kw at 25°C is 1.0x1014 Ko for the benzoate ion is: (A) 1.60x10 (B) 6.28x10-19 (C) 1.59x 10-10 (D) 1.59x 1010 (E) 6.28x10 The equilibrium constant for the autoionization reaction of formic acid is 4.17x107 at 3. 20°C What is the value of K for the reaction (A) 4.17x107 (B) 2.09x10 (C) 2.40x10 (D) 1.26x10-32 (E) 4.17x10-3

Explanation / Answer

1)

Kc is defined as concentration of product by concentration of reactant

solid do not appear in Kc expression

So, La2O3 and La2(C2O4)2 do not appear in Kc expression

Kc = [CO]^3[CO2]^3

Answer: C

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