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Determine the pH of a buffer formed by dissolving 21.5 g HC-HsO2 and 37.7 g of NaC-H:O2 in 200.0 mL of solution. The value of Ka for HC-H:O2 is 6.3 x 10-5. 2 3 NEXT > Based on the given values, set up ICE table in order to determine the unknown. НС-Н.О-(аq) + H:O(I) H:O“(aq) + C-HsO: (aq) Initial (M) Change (M) Equilibrium (M) 5 RESET 21.5 37.7 0.176 0.261 0.880 1.31 0.178 0.888 -- 21.5 - x 37.7 +x 0.176 - x 0.261 +x 0.880 - x 1.31 + x 0.178 +x 0.888 + x

Determine the pH of a buffer formed by dissolving 21.5 g HC-HsO2 and 37.7 g of NaC-H:O2 in 200.0 mL of solution. The value of Ka for HC-H:O2 is 6.3 x 10-5. 2 3 NEXT > Based on the given values, set up ICE table in order to determine the unknown. НС-Н.О-(аq) + H:O(I) H:O“(aq) + C-HsO: (aq) Initial (M) Change (M) Equilibrium (M) 5 RESET 21.5 37.7 0.176 0.261 0.880 1.31 0.178 0.888 -- 21.5 - x 37.7 +x 0.176 - x 0.261 +x 0.880 - x 1.31 + x 0.178 +x 0.888 + x

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter15: Acid–base Equilibria
Section: Chapter Questions
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Determine the pH of a buffer formed by dissolving 21.5 g HC-HsO2 and 37.7 g of NaC-H:O2 in 200.0 mL of solution. The value of Ka for HC-H:O2 is 6.3 x 10-5. 1 2 3 NEXT > Based on the given values, set up ICE table in order to determine the unknown. HC-HsO:(aq) + H:O(1) H;O“(aq) C-H:O2-(aq) Initial (M) Change (M) Equilibrium (M) 5 RESET 21.5 37.7 0.176 0.261 0.880 1.31 0.178 0.888 21.5 - x 37.7 + x 0.176 - x 0.261 + x +x 0.880 - x 1.31 + x 0.178 + x 0.888 + x
Transcribed Image Text:Determine the pH of a buffer formed by dissolving 21.5 g HC-HsO2 and 37.7 g of NaC-H:O2 in 200.0 mL of solution. The value of Ka for HC-H:O2 is 6.3 x 10-5. 1 2 3 NEXT > Based on the given values, set up ICE table in order to determine the unknown. HC-HsO:(aq) + H:O(1) H;O“(aq) C-H:O2-(aq) Initial (M) Change (M) Equilibrium (M) 5 RESET 21.5 37.7 0.176 0.261 0.880 1.31 0.178 0.888 21.5 - x 37.7 + x 0.176 - x 0.261 + x +x 0.880 - x 1.31 + x 0.178 + x 0.888 + x
Determine the pH of a buffer formed by dissolving 21.5 g HC-HSO2 and 37.7 g of NaC-H:O2 in 200.0 mL of solution. The value of Ka for HC-H:O2 is 6.3 x 10-5. PREV 1 2 3 NEXT > Based on your ICE table and definition of Ka, set up the expression for Ka in order to determine the unknown. Do not combine or simplify terms. Ка = 6.3 x 10-5 = 5 RESET [0] [21.5] [37.7] [0.176] [0.261] [0.880] [1.31] [0.178] [0.888] [x] [2x] [21.5 - x] [37.7 + x] [0.176 - x] [0.261 + x] [0.880 - x] [1.31 + x] [0.178 + x] [0.888 + x]
Transcribed Image Text:Determine the pH of a buffer formed by dissolving 21.5 g HC-HSO2 and 37.7 g of NaC-H:O2 in 200.0 mL of solution. The value of Ka for HC-H:O2 is 6.3 x 10-5. PREV 1 2 3 NEXT > Based on your ICE table and definition of Ka, set up the expression for Ka in order to determine the unknown. Do not combine or simplify terms. Ка = 6.3 x 10-5 = 5 RESET [0] [21.5] [37.7] [0.176] [0.261] [0.880] [1.31] [0.178] [0.888] [x] [2x] [21.5 - x] [37.7 + x] [0.176 - x] [0.261 + x] [0.880 - x] [1.31 + x] [0.178 + x] [0.888 + x]
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