1) Calculate the pH of a solution prepared by dissolving 1.90 g of sodium acetate, CH,COONA, in 64.0 mL of 0.15 Macetic acid,CH;COOH(ag). Assume the volume change upon dissolving the sodium acetate is negligible. K, of CHCOOH is 1.75 x 105.Calculate the amount of heat released or absorbed by the following substance: 90.23g of iron, AT= 86°CCalculate the amount of heat released or absorbed by the following substance: 7.45g of silicon, final temperature = -10°C, initialtemperature = 25°C

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1) Calculate the pH of a solution prepared by dissolving 1.90 g of sodium acetate, CH,COONA, in 64.0 mL of 0.15 Macetic acid, CH,COOH(ag). Assume the volume change upon dissolving the sodium acetate is negligible. K, of CH,COOH is 1.75 x 105. pH=

1) Calculate the pH of a solution prepared by dissolving 1.90 g of sodium acetate, CH,COONA, in 64.0 mL of 0.15 Macetic acid, CH,COOH(ag). Assume the volume change upon dissolving the sodium acetate is negligible. K, of CH,COOH is 1.75 x 105. pH=

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter12: Chemical Equilibrium

Section12.3: Determining Equilibrium Constants

Problem 12.3PSP

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

1) Calculate the pH of a solution prepared by dissolving 1.90 g of sodium acetate, CH,COONA, in 64.0 mL of 0.15 Macetic acid,
CH;COOH(ag). Assume the volume change upon dissolving the sodium acetate is negligible. K, of CHCOOH is 1.75 x 105.
Calculate the amount of heat released or absorbed by the following substance: 90.23g of iron, AT= 86°C
Calculate the amount of heat released or absorbed by the following substance: 7.45g of silicon, final temperature = -10°C, initial
temperature = 25°C

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