College Chemistry Ii Phs 1035 Practice Exam 3 With Answer Key Page 34
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39232) In which of the following aqueous solutions would you expect CuBr to have the highest solubility?
232)
A) 0.0100 M KBr
B) 0.040 M CuNO 3
C) 0.030 M NaBr
D) 0.020 M LiBr
E) CuBr will have the same solubility in all solutions.
233) In which of the following aqueous solutions would you expect PbCl 2 to have the lowest solubility?
233)
A) 0.020 M BaCl 2
B) 0.020 M Pb(NO 3 ) 2
C) 0.020 M NaCl
D) 0.020 M KCl
E) pure water
234) Of the substances below, ________ will decrease the solubility of Pb(CN) 2 in a saturated solution.
234)
A) Pb(MnO 4 ) 2
B) NaMnO 4
C) HMnO 4
D) H 2 O 2
E) NaCl
235) A solution of NaF is added dropwise to a solution that is 0.0122 M in Ba 2+ . When the concentration
235)
of F - exceeds ________ M, BaF 2 will precipitate. Neglect volume changes. For BaF 2 ,
K sp = 1.7 × 10 -6 .
A) 7.0 × 10 -5
C) 2.1 × 10 -8
D) 3.0 × 10 -3
B) 1.2 × 10 -2
E) 1.4 × 10 -4
34
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