What is the solubairy product expression for Fe_p(CO_2)_3 A) K_sp = [2Fe^3-][3CO

Question

What is the solubairy product expression for Fe_p(CO_2)_3 A) K_sp = [2Fe^3-][3CO^2-_3] B) K_sp = [2Fe^3-]^2[3CO^2-_3]^3 K_sp = [2Fe^3-]^2[CO^2-_3]^3 D) K_sp = [2Fe^3-]^2[CO^2-_3]^3 E) K_sp = [Fe^2-]^2[CO^2-_3]^2 A solution has a hydroxide ion concentration of 0.0010 M. What is the pOH of the solution? A) 6.9 B) 3.0 C) 7.1 D) 11.0 E) 7.0 Which of the following salts will produce a basic solution when added to pure water? A) Cs1 B) NHeBr C) Li_2S D)NaCl E) KHSO_4. What is the hydronium-ion concentration of a 0.25 M solution of HCN (K_s = 4.9 times 10^20) at 25 degree C? A) 1.1 times 10^-5 M D) 1.6 times 10^-4M B) 2.1 times 10^-6 M E) 33 times 10^-4 M C) 4.4 times 10^-5M Which are the Bronsted-Lowry bases in the following equilibrium? CH_3COO^- (aq) + H_2I(l) CH_3COOH(aq) + OH^- (ag) A) H_2O, CH_3COOH, and OH^- D) CH_3COO^- and CH_3COOH B) H_2O and CH_3COOH E) H_2O and OH^- C) CH_3COO^- and OH^- What is the molar solubility of lead(II) chloride at 25 degree C? The solubility product constant for lead(II) chloride is 1.6 times 10^-5 at 25degree C. A) 1.6 times 10 M D) 1.6 times 10 M B) 8.0 times 10 M E) 4.0 times 10 M C) 3.2 times 102 M

Explanation / Answer

15)

Fe2(CO3)3   <—> 2Fe3+   +   2CO32-

Ksp = [Fe3+]^2 [CO32-]^2

Answer: C

16)

[OH-] = 0.0010 M

pOH = -log [OH-]

= -log (0.0010)

= -log (1.0*10^-3)

= 3.0

Answer: B

i am allowed to answer only 1 question at a time

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