Homework Answers
As the salt is ionic it will completely dissociate in solvent
Let S be the solubility of each ion
Ksp = [Ca2+][CO32-]
Ksp = S * S = 4.5 * 10-9
S = 6.71 * 10-5M
Ksp = S*S
1.1 * 10-10 = S2
S = 1.049 * 10-10 M
Molarity of sodium sulfate = 0.05M
Molarity of Barium sulfate = 1.049 * 10-10 M
Solubility of BaSO4 = 2 * solubility of NaSO4
2 * 1.049 * 10-10 * 0.05 = 2.2 * 10-9 M
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24. Stalactites-the long, icicle-like formations that hang from the ceilings of caves-are formed from recrystallizing minerals...
24. Stalactites—the long, icicle-like formations that hang from the ceilings of caves—are formed from recrystallizing minerals...
24. Stalactites—the long, icicle-like formations that hang from the ceilings of caves—are formed from recrystallizing minerals like calcite (calcium carbonate). The Ksp of calcium carbonate is 4.5 x 10-9. What is the concentration of a saturated calcium carbonate solution? A. 0.00104 M B. 4.5 x 10-9 M C. 6.7 x 10-5 M D. 2.25 x 10-9 M E. 4.5 x 10-5 M
1) What is the hydronium ion concentration of a 0.010 M acetic acid solution? (Ka for...
1) What is the hydronium ion concentration of a 0.010 M acetic acid solution? (Ka for acetic acid = 1.76 x 10^-5 a) 1.8 x 10^-5 b) 4.2 x 10^-4 c) 1.8 x 10^-3 d) 1.0 x 10^-2 2) What is the solubility of barium sulfate in a solution containing 0.050 M sodium sulfate? The Ksp value for barium sulfate is 1.1 x 10^-10 a) 7.4 x 10^-6 M b) 1.1 x 10^-10 M c) 2.2 x 10^-9 M d)...
1. Using Table 38.3 in the Voyce text, calculate the solubility of Manganese(II) hydroxide at 25oC...
1.
Using Table 38.3 in the Voyce text, calculate the solubility of
Manganese(II) hydroxide at 25oC
A.
5.7 x 10-5
B.
3.6 x 10-5
C.
4.4 x 10-7
2.
The pH of a 0.0147M KCN solution is:
A.
10.7
B.
5.52
C.
3.3
D.
8.48
3.
The pH of a buffer solution composed of 0.020M HCHO2
and 0.014M NaCHO2 is:
A.
3.59
B.
3.74
C.
3.90
4.
When 400ml of a 0.01M SnCl2 solution is mixed with a
300ml if...
1) A solution contains 0.14 M potassium hydroxide and 0.14 M potassium chloride. Solid silver acetate...
1) A solution contains 0.14 M potassium hydroxide and 0.14 M potassium chloride. Solid silver acetate is added slowly to this mixture. What ionic compound precipitates first from the solution? (Solubility product constant data is found in the Chemistry References.) Formula of first precipitate = 2) A solution contains 5.12×10-3 M chromium(III) nitrate and 1.22×10-2 M calcium acetate. Solid sodium phosphate is added slowly to this mixture. A. What is the formula of the substance that precipitates first? formula =...
17.6 Based on the information in Appendix D, calculate the pH and trimethylammonium ion concentration of...
17.6 Based on the information in Appendix D,
calculate the pH and trimethylammonium ion concentration of a
solution of trimethylamine, (CH3) 3N, 0.075 M, and
trimethylammonium chloride, (CH3) 3NHCl, 0.10 M.
CONSTANTS OF AQUEOUS BALANCE Кок LO X 107 3.0 X 10-12 X L6 X 10 12 Kat 18 X 105 5.6 X 10- 5.1 X 10-10 3 X 10 6.3 X 105 5.8 X 10 10 15 X Ls 43 X 10 14 X 1st 1 x 102 74...
5) Which of the following salts forms aqueous solutions with pli>T! Na:CO, e. Na SO, NaBr...
5) Which of the following salts forms aqueous solutions with pli>T! Na:CO, e. Na SO, NaBr d. NHL.CI 6) Which of the following is not a buffer system solution containing roughly equal concentrations of fluoride ion and hydrofluoric acid. c. phosphate ion and monophosphate ion. chloride ion and hydrochloric acid. d s ulfite ion and bisulfite ion. 7) What is indicated by the shape of the titration curve? b. Volume of titrant a. A diprotic acid was titrated with a...
When 25.0 mL of a 4.80×10-4M potassium sulfate solution is combined with 15.0 mL of a 4.27×10-4M calcium acetate solutio...
When 25.0 mL of a
4.80×10-4M potassium
sulfate solution is combined with 15.0 mL
of a 4.27×10-4M calcium
acetate solution does a precipitate
form? (yes or no)
For these conditions the Reaction Quotient, Q, is equal to ?
The molar solubility of calcium sulfite in a
0.158 M potassium sulfite
solution is ? M.
Solid cobalt(II) acetate is slowly added to
50.0 mL of a 0.0327 M
potassium carbonate solution. The concentration of
cobalt(II) ion required to just initiate
precipitation is...
Please help with solving Question 1 (A-C) Thank you! Unless otherwise specified in the problem, you...
Please help with solving Question 1 (A-C) Thank you!
Unless otherwise specified in the problem, you may assume that all solutions are at 25°C. 1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH, requiring 17.47 mL to reach the second equivalence point. a. Calculate the molarity of carbonic acid and bicarbonate in the original buffer. Carbonic acid: Bicarbonate: b. Calculate the pH of the solution after a total of 100.0 mL of 0.2857...
could you please use the ksp values from this list A solution contains 6.98x10-²M nickel(II) acetate...
could you please use the ksp values from this list
A solution contains 6.98x10-²M nickel(II) acetate and 6.65x100 M iron(II) nitrate. Solid ammonium carbonate is added slowly to this mixture. What is the concentration of iron(II) ion when nickel ion begins to precipitate? [Fe2+] = LU Substance Aluminum compounds Substance 1.6 X 10-16 1.9 X 10-33 1.3 x 10-20 7.8 x 10-21 6.7 X 10-31 2.4 x 10-23 1.6 X 10-9 Chromium compounds CrAsO4 CH(OH), СТРО. Cobalt compounds Co (AsO.)...
could you please use the ksp values from this list question. Solid magnesium hydroxide and solid...
could you please use the ksp values from this list
question. Solid magnesium hydroxide and solid cobalt(II) hydroxide are in equilibrium with a solution containing 1.18x10-2 M magnesium nitrate. Calculate the concentration of cobalt(II) ion present in this solution. [cobalt(II)] = M LU Substance Aluminum compounds Substance 1.6 X 10-16 1.9 X 10-33 1.3 x 10-20 7.8 x 10-21 6.7 X 10-31 2.4 x 10-23 1.6 X 10-9 Chromium compounds CrAsO4 CH(OH), СТРО. Cobalt compounds Co (AsO.) COCO, Co(OH), CoS...
24. Stalactites—the long, icicle-like formations that hang from the ceilings of caves—are formed from recrystallizing minerals like calcite (calcium carbonate). The Ksp of calcium carbonate is 4.5 x 10-9. What is the concentration of a saturated calcium carbonate solution? A. 0.00104 M B. 4.5 x 10-9 M C. 6.7 x 10-5 M D. 2.25 x 10-9 M E. 4.5 x 10-5 M
1.
Using Table 38.3 in the Voyce text, calculate the solubility of
Manganese(II) hydroxide at 25oC
A.
5.7 x 10-5
B.
3.6 x 10-5
C.
4.4 x 10-7
2.
The pH of a 0.0147M KCN solution is:
A.
10.7
B.
5.52
C.
3.3
D.
8.48
3.
The pH of a buffer solution composed of 0.020M HCHO2
and 0.014M NaCHO2 is:
A.
3.59
B.
3.74
C.
3.90
4.
When 400ml of a 0.01M SnCl2 solution is mixed with a
300ml if...
17.6 Based on the information in Appendix D,
calculate the pH and trimethylammonium ion concentration of a
solution of trimethylamine, (CH3) 3N, 0.075 M, and
trimethylammonium chloride, (CH3) 3NHCl, 0.10 M.
CONSTANTS OF AQUEOUS BALANCE Кок LO X 107 3.0 X 10-12 X L6 X 10 12 Kat 18 X 105 5.6 X 10- 5.1 X 10-10 3 X 10 6.3 X 105 5.8 X 10 10 15 X Ls 43 X 10 14 X 1st 1 x 102 74...
5) Which of the following salts forms aqueous solutions with pli>T! Na:CO, e. Na SO, NaBr d. NHL.CI 6) Which of the following is not a buffer system solution containing roughly equal concentrations of fluoride ion and hydrofluoric acid. c. phosphate ion and monophosphate ion. chloride ion and hydrochloric acid. d s ulfite ion and bisulfite ion. 7) What is indicated by the shape of the titration curve? b. Volume of titrant a. A diprotic acid was titrated with a...
When 25.0 mL of a
4.80×10-4M potassium
sulfate solution is combined with 15.0 mL
of a 4.27×10-4M calcium
acetate solution does a precipitate
form? (yes or no)
For these conditions the Reaction Quotient, Q, is equal to ?
The molar solubility of calcium sulfite in a
0.158 M potassium sulfite
solution is ? M.
Solid cobalt(II) acetate is slowly added to
50.0 mL of a 0.0327 M
potassium carbonate solution. The concentration of
cobalt(II) ion required to just initiate
precipitation is...
Please help with solving Question 1 (A-C) Thank you!
Unless otherwise specified in the problem, you may assume that all solutions are at 25°C. 1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH, requiring 17.47 mL to reach the second equivalence point. a. Calculate the molarity of carbonic acid and bicarbonate in the original buffer. Carbonic acid: Bicarbonate: b. Calculate the pH of the solution after a total of 100.0 mL of 0.2857...
could you please use the ksp values from this list
A solution contains 6.98x10-²M nickel(II) acetate and 6.65x100 M iron(II) nitrate. Solid ammonium carbonate is added slowly to this mixture. What is the concentration of iron(II) ion when nickel ion begins to precipitate? [Fe2+] = LU Substance Aluminum compounds Substance 1.6 X 10-16 1.9 X 10-33 1.3 x 10-20 7.8 x 10-21 6.7 X 10-31 2.4 x 10-23 1.6 X 10-9 Chromium compounds CrAsO4 CH(OH), СТРО. Cobalt compounds Co (AsO.)...
could you please use the ksp values from this list
question. Solid magnesium hydroxide and solid cobalt(II) hydroxide are in equilibrium with a solution containing 1.18x10-2 M magnesium nitrate. Calculate the concentration of cobalt(II) ion present in this solution. [cobalt(II)] = M LU Substance Aluminum compounds Substance 1.6 X 10-16 1.9 X 10-33 1.3 x 10-20 7.8 x 10-21 6.7 X 10-31 2.4 x 10-23 1.6 X 10-9 Chromium compounds CrAsO4 CH(OH), СТРО. Cobalt compounds Co (AsO.) COCO, Co(OH), CoS...
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