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Select the best single answer for each question:
1. Which is NOT a strong electrolyte in water?
| A) | HCl | |
| B) | NaOH | |
| C) | KBr | |
| D) | AgI | |
| E) | H2SO4 | |
2. Which of the following is least soluble in water?
| A) | Fe2(SO4)3 | |
| B) | K2S | |
| C) | Ag2CO3 | |
| D) | Sn(NO3)2 | |
3. Which of the following is least soluble in water?
| A) | BaS | |
| B) | BaSO4 | |
| C) | BaCl2 | |
| D) | Ba(OH)2 | |
4. The ionic compound ZnI2 is ________ in water.
| A) | soluble | |
| B) | insoluble | |
5. The ionic compound AgNO3 is ________ in water.
| A) | soluble | |
| B) | insoluble | |
6. The ionic compound PbS is _________ in water.
| A) | soluble | |
| B) | insoluble | |
7. Which mixture of aqueous solutions does NOT produce a solid precipitate?
| A) | Ba(NO3)2 and Na2CO3 | |
| B) | Ca(OH)2 and KF | |
| C) | CuSO4 and NH4Cl | |
| D) | K2SO4 and Pb(NO3)2 | |
8. What is the total concentration of ions in an aqueous solution that is 0.126 M CaCl2 ?
| A) | 1.88 ´ 1023 M | |
| B) | 0.378 M | |
| C) | 0.252 M | |
| D) | 0.164 M | |
| E) | 0.00 M | |
9. What is the final concentration of NaCl after 500 mL of water is added to 1 L of 0.68 M NaCl ?
| A) | 0.34 M | |
| B) | 0.61 M | |
| C) | 0.27 M | |
| D) | 0.56 M | |
| E) | 0.45 M | |
