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| 1 . |
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Which of the following actions will increase the degree of dissociation of formic acid in an aqueous solution nominally 0.20 M of volume 711 mL?
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| 2 . |
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Consider the titration of 25.0 mL of 0.723 M HClO4 with 0.273 M KOH. Calculate the H3O+ concentration before any KOH is added.
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| 3 . |
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What is the pH of a solution that contains an initial concentration of 0.080 M citric acid and .010 M citrate ions (Ka = 7.4 x 10-4)?
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| 4 . |
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Ka for acetic acid is 1.7 x 10-5. The pH of a buffer prepared by combining 50.0 mL 1.00 M potassium acetate and 50.0 mL 1.00 M acetic acid is
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| 5 . |
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Calculate the pH of a solution formed by mixing 20.0 mL of 0.15 M HCl with 25.0 mL of 0.12 M NaOH.
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| 6 . |
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Consider the titration of 50.0 mL of 0.217 M HN3 (Ka = 2.6 x 10-5) with 0.183 M NaOH. Calculate the pH of the solution after the addition of 29.7 mL of NaOH solution.
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| 7 . |
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Consider the following table of Ksp values: | Compound | Ksp |
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| CdS | 8.0 x 10-27 | | CuS | 6.3 x 10-36 | | PbS | 8.0 x 10-28 | | MnCO3 | 1.8 x 10-11 | Which one of the compounds shown in the table is the least soluble?
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| 8 . |
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Calculate the molecular solubility of Fe(OH)3 if its Ksp equals 4.0 x 10-38.
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| 9 . |
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Which of the following would not be more soluble in 1.0 M HCl than in pure water?
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| 10 . |
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Calculate the molar solubility of calcium fluoride, CaF2, in a 0.050 M NaF solution. (Ignore any hydrolysis of the fluoride ion.) Ksp for CaF2 = 3.9 x 10-11.
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| 11 . |
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The solubility of silver carbonate is 0.032 M at 20°C. Calculate the Ksp of silver carbonate.
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| 12 . |
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Of AgCl, PbCl2, and Hg2Cl2, only _________ dissolve(s) in 6 M NH3.
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Answer choices in this exercise are randomized and will appear in a different order each time the page is loaded.
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