MQI 123 Practice SP08

MQI 123 Practice SP08 - 1) What is the molar solubility of...

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1) What is the molar solubility of barium fluoride ( BaF 2 ) in water? The solubility-product constant for BaF 2 is 1.7 × 10 -6 at 25°C. A) 6.5 × 10 -4 B) 1.2 × 10 -2 C) 1.8 × 10 -3 D) 7.5 × 10 -3 E) 5.7 × 10 -7 2) What is the molar solubility of AgCl in 0.20 M NaCN if the colorless complex ion Ag(CN) 2 - forms? K sp for AgCl is 1.8 × 10 -10 and K f for Ag(CN) 2 - is 1.0 × 10 21 . A) 0.10 M B) 0.20 M C) 0.40 M D) 8.5 x 10 4 M E) 4.2 x 10 5 M 3) What is the most soluble salt of the following set? A) Ba(OH) 2 with K sp = 5.0 × 10 -3 B) Ca(OH) 2 with K sp = 4.7 × 10 -6 C) Cd(OH) 2 with K sp = 5.3 × 10 -15 D) Fe(OH) 2 with K sp = 2.5 × 10 -37 E) Zn(OH) 2 with K sp = 5.0 × 10 -17 4) Silver bromide is most soluble in A) dilute NH 3 B) pure water C) dilute HNO 3 D) 0.10 M NaCl E) 0.10 M AgNO 3 5) Precipitation of an ionic compound will occur upon mixing of desired reagents if the initial ion product is ________. A) greater than the K sp B) equal to the p K sp C) equal to the K sp D) less than the K sp 1
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6) Which of the following metal hydroxides are amphoteric? A) Al(OH) 3 , Zn(OH) 2 , Cr(OH) 3 , Sn(OH) 2 B) Cu(OH) 2 , Mn(OH) 2 , Fe(OH) 2 , Fe(OH) 3 C) Be(OH) 2 , Ca(OH) 2 , Ba(OH) 2 , Sr(OH) 3 D) LiOH, NaOH, KOH, RbOH 7) Calculate the molar solubility of thallium chloride in 0.30 M NaCl at 25°C. K sp for TlCl is 1.7 × 10 -4 . A) 5.1 × 10 -5 M B) 5.7 × 10 -4 M C) 7.1 × 10 -3 M D) 1.3 × 10 -2 M E) 6.9 × 10 -4 M 8) In which of the following solutions would solid PbCl 2 be expected to be the least soluble at 25°C? A) 0.1 M HCl
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This note was uploaded on 04/29/2008 for the course CHEM 123 taught by Professor Larosa during the Spring '06 term at Ohio State.

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MQI 123 Practice SP08 - 1) What is the molar solubility of...

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