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Basic Chemistry Practice Test: Aqueous Reactions and Solution Stoichiometry
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Basic Chemistry Practice Test: Aqueous Reactions and Solution Stoichiometry
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25 Questions

1. There are __________ mol of bromide ions in 0.500 L of a 0.300 M solution of AlBr3 .
2. In which species does sulfur have the highest oxidation number?
3. In which reaction does the oxidation number of hydrogen change?
4. With which of the following will ammonium ion form an insoluble salt?
5. Combining aqueous solutions of BaI2 and Na2SO4 affords a precipitate of BaSO4 . Which ion(s) is/are spectator ions in the reaction?
6. An aqueous ethanol solution (400 mL) was diluted to 4.00 L, giving a concentration of 0.0400 M. The concentration of the original solution was __________ M.
7. Which of the following is soluble in water at 25°C?
8. Pure acetic acid (HC2H3O2 ) is a liquid and is known as glacial acetic acid. Calculate the molarity of a solution prepared by dissolving 10.00 mL of glacial acetic acid at 25°C in sufficient water to give 500.0 mL of solution. Thedensity of glacial acetic acid at 25°C is 1.049 g/mL.
9. What mass (g) of AgBr is formed when 35.5 mL of 0.184 M AgNO3 is treated with an excess of aqueous hydrobromic acid?
10. When H2SO4 is neutralized by NaOH in aqueous solution, the net ionic equation is __________.
11. A 0.200 M K2SO4 solution is produced by __________.
12. The molarity of a solution prepared by diluting 43.72 mL of 5.005 M aqueous K2Cr2O7 to 500 mL is __________.
13. A solution is prepared by adding 1.60 g of solid NaCl to 50.0 mL of 0.100 M CaCl2 . What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL.
14. A tenfold dilution of a sample solution can be obtained by taking __________.
15. A 25.5 mL aliquot of HCl (aq) of unknown concentration was titrated with 0.113 M NaOH (aq). It took 51.2 mL of the base to reach the endpoint of the titration. The concentration (M) of the acid was __________.
16. Which solution has the same number of moles of solute A as 50.00 mL of 0.100M solution of NaOH?
17. The molarity of a solution prepared by diluting 43.72 mL of 1.005 M aqueous K2Cr2O7 to 500 mL is __________.
18. The point in a titration at which the indicator changes is called the __________.
19. The spectator ions in the reaction between aqueous perchloric acid and aqueous barium hydroxide are __________.
20. A 0.100 M solution of __________ will contain the highest concentration of potassium ions.
21. Which one of the following compounds is insoluble in water?
22. The molarity (M) of an aqueous solution containing 22.5 g of glucose (C6H12O6 ) in 35.5 mL of solution is __________.
23. The balanced reaction between aqueous nitric acid and aqueous strontium hydroxide is __________.
24. Calculate the number of grams of solute in 500.0 mL of 0.189 M KOH.
25. The total concentration of ions in a 0.250 M solution of HCl is __________.