How many moles of solid sodium acetate (CH3COONa) would you need to add to reduce the percent ion...
How many moles of solid sodium acetate (CH3COONa) would you need to add to reduce the percent ionization of a 0.20 M solution of acetic acid (CH3COOH) to 0.0060%? The volume of the acid solution is 2.00 L and you can ignore the slight change in volume that comes from adding the solid sodium acetate. (Hint: remember that you can make the assumption that the change in molarity is small)
Homework Answers
![l-o.oo99 = o.198CM) LCH3C001 0.00184 CM) Lut χ (M) CHOCOONa is added CHacoc [Ctta coo] = (o.oo184.*) O , i 9999 or α- 1.99x10](http://img.homeworklib.com/images/6efe0bb1-cbe7-4c58-ad69-8de9fa3e358d.png?x-oss-process=image/resize,w_560)
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How many moles of solid sodium acetate (CH3COONa) would you need to add to reduce the percent ion...
How many grams of sodium acetate, CH3COONa, is required to mix with 2.00 Liters of 0.450...
How many grams of sodium acetate, CH3COONa, is required to mix with 2.00 Liters of 0.450 M acetic acid, CH3COOH, in order to prepare a buffer solution with a pH that equals 5.00? pKa(CH3COOH) = 4.74 and molar mass(CH3COONa) = 82.03 g/mol
A buffer is prepared by adding 21.0 g of sodium acetate (CH3COONa) to 500 mL of...
A buffer is prepared by adding 21.0 g of sodium acetate (CH3COONa) to 500 mL of a 0.155 M acetic acid (CH3COOH) solution. Determine the pH of the buffer.
A buffer is prepared by adding 23.0 g of sodium acetate (CH3COONa) to 500 mL of...
A buffer is prepared by adding 23.0 g of sodium acetate (CH3COONa) to 500 mL of a 0.160 M acetic acid (CH3COOH) solution. Write the complete ionic equation for the reaction that occurs when a few drops of hydrochloric acid are added to the buffer. Write the complete ionic equation for the reaction that occurs when a few drops of sodium hydroxide solution are added to the buffer. Express your answer as a chemical equation. Identify all of the phases...
A buffer is prepared by adding 20.0 g of sodium acetate (CH3COONa) to 480 mL of...
A buffer is prepared by adding 20.0 g of sodium acetate (CH3COONa) to 480 mL of a 0.160 M acetic acid(CH3COOH) solution. 1. Determine the pHpH of the buffer. 2. Write the complete ionic equation for the reaction that occurs when a few drops of hydrochloric acid are added to the buffer.Identify all of the phases in your answer. 3. Write the complete ionic equation for the reaction that occurs when a few drops of sodium hydroxide solution are added...
A buffer is prepared by adding 18.0 g of sodium acetate (CH3COONa) to 490 mL of...
A buffer is prepared by adding 18.0 g of sodium acetate (CH3COONa) to 490 mL of a 0.140 M acetic acid (CH3COOH) solution. 1) Determine the pH of the buffer. 2) Write the complete ionic equation for the reaction that occurs when a few drops of hydrochloric acid are added to the buffer. (Express your answer as a chemical equation. Identify all of the phases in your answer.) 3) Write the complete ionic equation for the reaction that occurs when...
D. Buffers 1. A buffer solution was made by dissolving 10.0 grams of sodium acetate in...
D. Buffers 1. A buffer solution was made by dissolving 10.0 grams of sodium acetate in 200.0 mL of 1.50 M acetic acid. Assuming the change in volume when the sodium acetate is added is not significant, estimate the pH of the acetic acid/sodium acetate buffer solution. The K, for acetic acid is 1.8 x 105. 2. Calculate the pH of a buffer solution that initially consists of 0.0400 moles of ammonia and 0.0250 moles of ammonium ion, after 20.0...
How can you reduce the amount of any unreacted isoamyl alcohol that may contaminate the formed...
How can you reduce the amount of any unreacted isoamyl alcohol that may contaminate the formed ester? by adding sodium acetate/acetic acid buffer to suppress the reverse reaction by carrying out the reaction in a non polar solvent O by adding slight excess of concentrated sulfuric acid O by adding slight excess of glacial acetic acid
4) Show your work to get full credit. (a) How much in g) sodium acetate (CH3COONa)...
4) Show your work to get full credit. (a) How much in g) sodium acetate (CH3COONa) must be added to 100 mL 0.1 M CH3COOH solution to prepare a buffer solution with pH 4.90? (assume no change in volume) (b) What will be the pH of the final solution if 2.50 x 10 mol HCl solution is added to the buffer solution above? (c) What will be the pH of the solution if 2.00 x 10 mol NaOH solution is...
A buffer solution is 0.78 M in acetic acid and 0.22 M in sodium acetate. Calculate...
A buffer solution is 0.78 M in acetic acid and 0.22 M in sodium acetate. Calculate the solution pH after adding 0.80 g of solid NaOH to 100.0 mL of the buffer solution. Ka of acetic acid is 1.8 10−5 . Assume negligible volume change.
Acid buffer described in Problem 21, you discover that your m ion? laboratory is out of sodium ac...
number 23
acid buffer described in Problem 21, you discover that your m ion? laboratory is out of sodium acetate, but you do have sodium hydroxide. How much (in moles and grams) acetic acid and til the pH on of the sodium hydroxide do you need to make the buffer? f th ola . Another alternative. Your friend from another labora- ory was out of acetic acid, so tries to prepare the buffer in Problem 21 by dissolving 41.02 g...
D. Buffers 1. A buffer solution was made by dissolving 10.0 grams of sodium acetate in 200.0 mL of 1.50 M acetic acid. Assuming the change in volume when the sodium acetate is added is not significant, estimate the pH of the acetic acid/sodium acetate buffer solution. The K, for acetic acid is 1.8 x 105. 2. Calculate the pH of a buffer solution that initially consists of 0.0400 moles of ammonia and 0.0250 moles of ammonium ion, after 20.0...
How can you reduce the amount of any unreacted isoamyl alcohol that may contaminate the formed ester? by adding sodium acetate/acetic acid buffer to suppress the reverse reaction by carrying out the reaction in a non polar solvent O by adding slight excess of concentrated sulfuric acid O by adding slight excess of glacial acetic acid
4) Show your work to get full credit. (a) How much in g) sodium acetate (CH3COONa) must be added to 100 mL 0.1 M CH3COOH solution to prepare a buffer solution with pH 4.90? (assume no change in volume) (b) What will be the pH of the final solution if 2.50 x 10 mol HCl solution is added to the buffer solution above? (c) What will be the pH of the solution if 2.00 x 10 mol NaOH solution is...
number 23
acid buffer described in Problem 21, you discover that your m ion? laboratory is out of sodium acetate, but you do have sodium hydroxide. How much (in moles and grams) acetic acid and til the pH on of the sodium hydroxide do you need to make the buffer? f th ola . Another alternative. Your friend from another labora- ory was out of acetic acid, so tries to prepare the buffer in Problem 21 by dissolving 41.02 g...
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