What mass of NaCH3COO should be added to 1.2 L of 0.86 M CH3COOH solution at 25 °C to produce a solution with a pH of 4....

Question

Question

What mass of NaCH3COO should be added to 1.2 L of 0.86 M CH3COOH solution at 25 °C to produce a solution with a pH of 4....

What mass of NaCH₃COO should be added to 1.2 L of 0.86 M CH₃COOH solution at 25 °C to produce a solution with a pH of 4.99 given that the K_a of CH₃COOH is 1.8×10^-5 and the molar mass of NaCH₃COO is 82.0338 g/mol?

8.0×10²

5.6×10²

7.3×10²

3.2×10²

1.5×10²

science chemistry

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

Date Page No from hendesson hasselbolch cquelin pH= pkat wy moly 4 Nach, Coot moles of CH₂ coon 14.99 = -log (1.8x103) + loy

Add a comment

Answer 2

Similar Homework Help Questions

6. What mass of sodium acetate (NaCH3COO) should be dissolved in 250.0 mL of 0.30 M acetic acid (CH3COOH) to form a buff...

6. What mass of sodium acetate (NaCH3COO) should be dissolved in 250.0 mL of 0.30 M acetic acid (CH3COOH) to form a buffer of pH 5.0? [Ka for acetic acid is 1.8 × 10−5 ] (a) 11 g (b) 8.0 g (c) 7.5 g (d) 5.0 g (e) 1.4 g
What is the pH of a 0.25 M solution of NaCH3COO (Ka (CH3COOH) = 1.8 * 10-5)?...

What is the pH of a 0.25 M solution of NaCH3COO (Ka (CH3COOH) = 1.8 * 10-5)? Instruction: Please have two decimal places for your answer
D Question 7 10 pts It is desired to buffer a solution at pH - 4.30....

D Question 7 10 pts It is desired to buffer a solution at pH - 4.30. What molar ratio of CH3COOH to NaCH3COO should be used? The Ka for CH3COOH is 1.8 x 10-5. 10 pts D | Question 8 How much NH4CI must be added to 2.00 liters of 0.26 M aqueous ammonia to give a solution with pH 8.55? Assume no volume change due to the addition of NH4CI. The Kb of ammonia is 1.8 x 105, and...

You need to make 1.0 L of a buffer solution having pH = 4.30 from CH3COOH...

You need to make 1.0 L of a buffer solution having pH = 4.30 from CH3COOH and NaCH3COO. What concentrations of CH3COOH and NaCH3COO will you have to prepare? Given: Ka for CH3COOH = 1.8 x 10-5. (Please explain step-by-step - thank you.)
A 1.0 L solution initially contains 0.3 M CH3COOH. Approximate the number of moles of CH3COOH...

A 1.0 L solution initially contains 0.3 M CH3COOH. Approximate the number of moles of CH3COOH and CH3COO− in the solution after 0.1 mol of solid NaOH is added, and calculate the pH of the resulting solution. Ka of CH3COOH is 1.8 ×10−5. 1) The number of moles of CH3COOH present is [ Select ] ["0.2", "0.3", "0.1"] mol. 2) The number of...
consider 100.0 ml of a buffer solution that contains [NaCH3COO]=[CH3COOH]=0.250 M a) what is the pH...

consider 100.0 ml of a buffer solution that contains [NaCH3COO]=[CH3COOH]=0.250 M a) what is the pH of this buffer? b) what should the ph of the buffer be after 50.0ml of water is added? explain c) wtite balanced net ionic for the reaction that occurs whrn 1.0 M HCl ir added to this buffer. d) after adding 10.0 ml of 1.0 M HCl what will the ph of the solution be? e) as more 1.0 M HCl is slowly added...

7. Calculate the mass of sodium acetate (CH3COONa) that must be added to 1.00 L 0.450 M acetic acid (CH3COOH), Ka =...

7. Calculate the mass of sodium acetate (CH3COONa) that must be added to 1.00 L 0.450 M acetic acid (CH3COOH), Ka = 1.8 x 10 ) to form a pH = 5.00 buffer. Ka = 1.8 x 109.
What quantity (moles) of NaOH must be added to 1.0 L of 1.8 M HC2H3O2 to produce a solution buffered at pH = 4.00? Ka =...

What quantity (moles) of NaOH must be added to 1.0 L of 1.8 M HC2H3O2 to produce a solution buffered at pH = 4.00? Ka = 1.8×10-5
1) What is the pH of a 0.085 M solution of acetic acid, HC2H3O2? At 25...

1) What is the pH of a 0.085 M solution of acetic acid, HC2H3O2? At 25 degrees C, the Ka of acetic acid is 1.8 x 10^-5. 2) 17.4 mL of 4.0 M HCl are diluted with water to make 1.5 L of solution. What should be the pH of the final solution?

What volume of 0.16 M NaOH (aq) solution at 25 °C is needed to dissolve 1.25×102...

What volume of 0.16 M NaOH (aq) solution at 25 °C is needed to dissolve 1.25×102 mg of calcium hydroxide? The Ksp of calcium hydroxide is 8.0×10-6 and its molar mass is 74.1 g/mol. A) 8.8 L B) 5.4 L C) 2.6 L D) 4.2 L E) 8.4 L

What mass of NaCH3COO should be added to 1.2 L of 0.86 M CH3COOH solution at 25 °C to produce a solution with a pH of 4....

Homework Answers

Add Answer to:
What mass of NaCH3COO should be added to 1.2 L of 0.86 M CH3COOH solution at 25 °C to produce a solution with a pH of 4....

Post as a guest

Earn Coins

6. What mass of sodium acetate (NaCH3COO) should be dissolved in 250.0 mL of 0.30 M acetic acid (CH3COOH) to form a buff...

What is the pH of a 0.25 M solution of NaCH3COO (Ka (CH3COOH) = 1.8 * 10-5)?...

D Question 7 10 pts It is desired to buffer a solution at pH - 4.30....

You need to make 1.0 L of a buffer solution having pH = 4.30 from CH3COOH...

A 1.0 L solution initially contains 0.3 M CH3COOH. Approximate the number of moles of CH3COOH...

consider 100.0 ml of a buffer solution that contains [NaCH3COO]=[CH3COOH]=0.250 M a) what is the pH...

7. Calculate the mass of sodium acetate (CH3COONa) that must be added to 1.00 L 0.450 M acetic acid (CH3COOH), Ka =...

What quantity (moles) of NaOH must be added to 1.0 L of 1.8 M HC2H3O2 to produce a solution buffered at pH = 4.00? Ka =...

1) What is the pH of a 0.085 M solution of acetic acid, HC2H3O2? At 25...

What volume of 0.16 M NaOH (aq) solution at 25 °C is needed to dissolve 1.25×102...

What mass of NaCH3COO should be added to 1.2 L of 0.86 M CH3COOH solution at 25 °C to produce a solution with a pH of 4....

Homework Answers

Add Answer to: What mass of NaCH3COO should be added to 1.2 L of 0.86 M CH3COOH solution at 25 °C to produce a solution with a pH of 4....

Post as a guest

Earn Coins

Add Answer to:
What mass of NaCH3COO should be added to 1.2 L of 0.86 M CH3COOH solution at 25 °C to produce a solution with a pH of 4....