detailed step and good handwriting is needed thank u A student prepares a lactic acid-sodium lactate...

Question

Question

detailed step and good handwriting is needed thank u
A student prepares a lactic acid-sodium lactate buffer solution by mixing 40. mL of 0.50 M HC3H5O3(aq) with 200. mL of 1.0 M

A student prepares a lactic acid-sodium lactate buffer solution by mixing 40. mL of 0.50 M HC3H5O3(aq) with 200. mL of 1.0 M

science chemistry

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

Given, Suffer is made by mixing 40 mL of 0-5M HC 34 0₃ and zoomL of IM Na CzHs. So, resultant volume of buffer = 240mL = 0.24

Add a comment

Answer 2

Similar Homework Help Questions

detailed step and good handwriting is needed thank u A student mixes 40. mL of 0.10...

detailed step and good handwriting is needed thank u A student mixes 40. mL of 0.10 M HBr(aq) with 60. mL of 0.10 M KOH(aq) at 25°C. What is the [OH-] of the resulting solution?
What is the pH of a 1.00 L solution containing 0.295 M lactic acid, HC3H5O3 (pKa...

What is the pH of a 1.00 L solution containing 0.295 M lactic acid, HC3H5O3 (pKa = 3.86) and 0.295 M sodium lactate, NaC3H5O3, upon the addition of 0.055 mol HCl? Assume no significant volume change occurs.
A buffer contains 0.020 mol of lactic acid (pKa = 3.86) and 0.100 mol sodium lactate...

A buffer contains 0.020 mol of lactic acid (pKa = 3.86) and 0.100 mol sodium lactate per liter of aqueous solution. a. Calculate the pH of this buffer. b. Calculate the pH after 8.0 mL of 1.00 M NaOH is added to 1 liter of the buffer (assume the total volume will be 1008 mL).

Lactic acid, HC3H5O3, is a substance found in sour milk products such as yogurt, and is...

Lactic acid, HC3H5O3, is a substance found in sour milk products such as yogurt, and is produced naturally by fermentation in body cells during normal metabolism and exercise The Ka for lactic acid is 38 x 10-4. Its sodium salt, sodium lactate, NaC3H5O3, is used in foods as a preservative and acidity regulator. It is also used in shampoo products as an effective humectant and moisturizer. Determine the pH of a solution prepared by adding 4.5 grams of sodium lactate...
A buffer contains 0.010 mol of lactic acid (pKa = 3.86) and 0.050 mol of sodium...

A buffer contains 0.010 mol of lactic acid (pKa = 3.86) and 0.050 mol of sodium lactate per liter. (a) Calculate the pH of the buffer. (b) Calculate the change in pH when 5.0 mL of 0.50 M HCl is added to 1.0 L of the buffer. (c) What pH change would you expect if you added the same quantity of HCl to 1.0 L of pure water?
A buffer solution is made such that the initial concentrations of lactic acid (HC3H5O3) and the...

A buffer solution is made such that the initial concentrations of lactic acid (HC3H5O3) and the lactate ion (C3H5O3-) are both 0.600 M. What is the resulting pH if 10.0 mL of 1.00 M HCL is added to 0.500 of the buffer solution? (ka of HC3H5O3= 1.4 x 10^-4)

11a) 1.00 moles of lactic acid (HC3H5O3, Ka = 1.4 x 10-4) and 1.00 moles of...

11a) 1.00 moles of lactic acid (HC3H5O3, Ka = 1.4 x 10-4) and 1.00 moles of sodium lactate (NaC3H5O3) are dissolved in water resulting in a solution with a final volume of 550 mL. What is the pH of the solution after the addition of 0.080 moles of HCI? a. 0.80 b. 1.8 C. 2.8 d. 3.8
Calculate the pH of a buffer solution prepared by mixing 75 mL of 1.0 M lactic...

Calculate the pH of a buffer solution prepared by mixing 75 mL of 1.0 M lactic acid and 25 mL of a 1.0M sodium lactate. (pka of lactic acid = 3.86) Calculate the change in pH that occurs when 0.01moles of OH are added to a 1L buffered solution that contains 0.5M acetic acid (HC_2H_3O_2) and 0.5M acetate ion (C_2H_3O_2). Acetic acid pka = 4.76.
2.) Consider a 1.00L of buffer that is 0.139M in lactic acid (C3H5O3H) and 0.134M in sodium lactate (C3H5O3- Na+). Calcu...

2.) Consider a 1.00L of buffer that is 0.139M in lactic acid (C3H5O3H) and 0.134M in sodium lactate (C3H5O3- Na+). Calculate the pH of the buffer after adding 0.0500 mol of HCl into the buffer solution. (Assume no volume change) pKa of lactic acid is 3.86

A buffer is made by adding 0.350 mol lactic acid, CH3CH(OH)COOH, and 0.350 mol potassium lactate,...

A buffer is made by adding 0.350 mol lactic acid, CH3CH(OH)COOH, and 0.350 mol potassium lactate, CH3CH(OH)COOK, to enough water to make 1.10 L of solution. The pKa is equal to 4.24. Calculate the pH of this solution after 3.0 mL of 3.0 M KOH is added to the buffer.

detailed step and good handwriting is needed thank u A student prepares a lactic acid-sodium lactate...

Homework Answers

Add Answer to:
detailed step and good handwriting is needed thank u A student prepares a lactic acid-sodium lactate...

Post as a guest

Earn Coins

detailed step and good handwriting is needed thank u A student mixes 40. mL of 0.10...

What is the pH of a 1.00 L solution containing 0.295 M lactic acid, HC3H5O3 (pKa...

A buffer contains 0.020 mol of lactic acid (pKa = 3.86) and 0.100 mol sodium lactate...

Lactic acid, HC3H5O3, is a substance found in sour milk products such as yogurt, and is...

A buffer contains 0.010 mol of lactic acid (pKa = 3.86) and 0.050 mol of sodium...

A buffer solution is made such that the initial concentrations of lactic acid (HC3H5O3) and the...

11a) 1.00 moles of lactic acid (HC3H5O3, Ka = 1.4 x 10-4) and 1.00 moles of...

Calculate the pH of a buffer solution prepared by mixing 75 mL of 1.0 M lactic...

2.) Consider a 1.00L of buffer that is 0.139M in lactic acid (C3H5O3H) and 0.134M in sodium lactate (C3H5O3- Na+). Calcu...

A buffer is made by adding 0.350 mol lactic acid, CH3CH(OH)COOH, and 0.350 mol potassium lactate,...

detailed step and good handwriting is needed thank u A student prepares a lactic acid-sodium lactate...

Homework Answers

Add Answer to: detailed step and good handwriting is needed thank u A student prepares a lactic acid-sodium lactate...

Post as a guest

Earn Coins

Add Answer to:
detailed step and good handwriting is needed thank u A student prepares a lactic acid-sodium lactate...