39. Calculate the concentration of Al \' in a saturated solution of Al(OH), Al(O

Question

39. Calculate the concentration of Al ' in a saturated solution of Al(OH), Al(OH), is 20x 10 in a saturated solution of AlOH), K, for a. 3.0x 10 b. 7.0 x 109 c. 2.0 x 10 d. 3.0 x 10-1 e. none of the above __ 40. The K 0.0010 M solution of Na,SO. ofPbSO4(s) is 1.3 x 10. Calculate the solubility in mol LofPbso, in a a. 1.3 x 10-1 M b. 4.5x 10M c. 1.3 x 10- M d. 1.3 x 10- M e. 1.4 x 10*M The solubility ofLa(10), in a 0.10 M KIO, solution is 1.0 x 10.1 M. Calculate the K for LaIO,), 41· a. 1.0 x 10 a. b. 2.7 x 109 c. 1.0 x 101 e. none of the above d. 2.7x 1027 Calculate the pH of a 5.0 M solution ofaniline, C,HN, that has K,- 3.8 x 10-10 42. a. 4.36 b. 9.64 c. 0.070 d. 9.30 e. none of the above

Explanation / Answer

Answer is e.

Ksp= X* X^3=X^4

X= Fourth root of Ksp

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