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D SILVER CHLORIDE

When sodium chloride is added to a solution of silver chloride, which of the following precipitates would be expected to appear? A. sodium B. silver C. chlorine D. sodium chloride E. silver chloride. D SILVER CHLORIDE.

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D SILVER CHLORIDE

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  1. When sodium chloride is added to a solution of silver chloride, which of the following precipitates would be expected to appear? A. sodium B. silver C. chlorine D. sodium chloride E. silver chloride

  2. D SILVER CHLORIDE

  3. A substance is dissolved in water, forming a 0.50 M solution. If 4.0 liters of solution contains 240 grams of the substance, what is the molecular mass? A. 60 g/mol B. 120 g/mol C. 240 g/mol D. 480 g/mol E. 640 g/mol

  4. C 120 g/mol

  5. A 0.1 molar solution of which of the following acids will be the best conductor of electricity? • HC2H3O2 • H2CO3 • H2S • HF • HNO3

  6. E HNO3

  7. If 46 grams of MgBr2 (molar mass 184 grams) is dissolved in water to from 0.50 liters of solution, what is the concentration of bromine ions in the solution? • 0.25 M • 0.50 M • 1.0 M • 2.0 M • 4.0 M

  8. C 1.0 M

  9. A solution contains equal masses of glucose (molar mass 180) and toluene (molar mass 90). What is the mole fraction of glucose in the solution? • ¼ • 1/3 • ½ • 2/3 • ¾

  10. B 1/3

  11. How many moles of Na2SO4 must be added to 500 mL of water to create a solution t hat has a 2 molar concentration of the Na+ ion? (Assume the volume of the solution does not change) • 0.5 moles • 1 mol • 2 moles • 4 moles • 5 moles

  12. A 0.5 moles

  13. How many liters of water must be added to 4 liters of a 6 molar HNO3 solution to create a solution that is 2-molar? • 2 liters • 4 liters • 6 liters • 8 liters • 12 liters

  14. D 8 liters

  15. A beaker contains 50.0 mL of a 0.20 M Na2SO4 solution. If 50.0 mL of a 0.10 M solution of Ba(NO3)2 is added to the beaker, what will be the final concentration of sulfate ions in the solution? • 0.20 M • 0.10 M • 0.050 M • 0.025 M • 0.012 M

  16. c. 0.050 M

  17. When 300. mL of a 0.60 M NaCl solution is combined with 200. mL of a 0.40 M MgCl2 solution, what will be the molar concentration of Cl- ions in the solution? • 0.20 M • 0.34 M • 0.68 M • 0.80 M • 1.0 M

  18. C 0.68 M

  19. A student added 0.10 mol of NaBr and 0.20 mol of BaBr2 to 2 liters of water to create an aqueous solution. What is the number of moles of Ag(C2H3O2) that the student must add to the solution to precipitate out all of the Br- ions as AgBr? • 0.20 • 0.30 • 0.40 • 0.50 • 1.00

  20. D 0.50

  21. A student added 1 liter of a 1.0 M KCl solution to 1 liter of a 1.0 M Pb(NO3)2 solution. A lead chloride precipitate formed, and nearly all of the lead ions disappeared from the solution. Which of the following lists the ions remaining in the solution in order of decreasing concentration? • NO3-, K+, Pb 2+ • NO3 -, Pb 2+, K+ • K+, Pb2+, NO3 – • K+, NO3 -, Pb 2+ • Pb 2+, NO3 -, K+

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