What is the approximate pH of a buffer prepared by adding 300 mL of 0.7 M...

Question

Question

What is the approximate pH of a buffer prepared by adding 300 mL of 0.7 M...

What is the approximate pH of a buffer prepared by adding 300 mL of 0.7 M acid and 300 mL of 0.2 M base, if the pKa of acid is 7.69? If you add 50 mL of 0.15 N NaOH to the buffer what is the change in pH?

science chemistry

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

Add a comment

Answer 2

Similar Homework Help Questions

1) How would you make 300 ml of a 0.1 M sodium phosphate buffer, pH 7.0...

1) How would you make 300 ml of a 0.1 M sodium phosphate buffer, pH 7.0 (pKa = 7.2) phosphate dibasic (the conjugate base). 2) What are the concentrations of acetate and acetic acid in a 0.2 M acetate buffer pH 5.3? The pKa for acetic acid is 4.76. 3)You have 100 ml of 0.1 M acetate buffer pH 5.2 (pKa 4.76). You add 10 ml of 0.1 M NaOH. Calculate the resulting change in pH and the buffering capacity...
3. A buffer is prepared by adding 45,0 mL of 0.15 M sodium benzo Benzoic acid. What is the pH of the final solution...

3. A buffer is prepared by adding 45,0 mL of 0.15 M sodium benzo Benzoic acid. What is the pH of the final solution? by adding 45.0 mL of 0.15 M sodium benzoate to 25.0 mL of 0.1 MM
A buffer is prepared by adding 45.0 mL of 0.15 M NaF to 35.0 mL of 0.10 M HF

A buffer is prepared by adding 45.0 mL of 0.15 M NaF to 35.0 mL of 0.10 M HF. What is the pH of the final solution? The Ka of hydrofluoric acid is 6.8 x 10-4.

Part A: What is the pH of a buffer prepared by adding 0.708 mol of the...

Part A: What is the pH of a buffer prepared by adding 0.708 mol of the weak acid HA to 0.406 mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66×10−7. Part B:What is the pH after 0.150 mol of HCl is added to the buffer from Part A? Assume no volume change on the addition of the acid. Part C: What is the pH after 0.195 mol of NaOH is added to the...
A buffer is prepared by adding 300.0 mL of 2.0 M NaOH to 500.0 mL of...

A buffer is prepared by adding 300.0 mL of 2.0 M NaOH to 500.0 mL of 2.0 M CH3COOH. What is the pH of the buffer?
What is the pH of a buffer prepared by adding 6.0 mol of acetic acid and...

What is the pH of a buffer prepared by adding 6.0 mol of acetic acid and 1 mol of NaOH to water to make a 1.0-L solution? Ka for acetic acid is 1.75*10-5 and its pKa is 4.76.

A buffer is prepared by mixing 14.0 ml of 0.243 M HNO2 and 28.5 ml of...

A buffer is prepared by mixing 14.0 ml of 0.243 M HNO2 and 28.5 ml of 0.189 M NaNO2. What is the buffer capacity of this buffer against adding acid? I.e. how many moles of acid can you add before the buffer capacity is exceeded and the pH begins to change quickly? For this question, you may use the quick and simple method for calculating buffer capacity.
II, 8 part A: What is the pH of a buffer prepared by adding 0. 809...

II, 8 part A: What is the pH of a buffer prepared by adding 0. 809 mol of the veak acid HA to 0.607 mol of Na A in 2.00 LOT Solution? The dissociation constant of HA is 5.66 x 10? Dart B What is the pH after 0.150 mol of HCl is added to the buffer from Part A? Assume no volume change on the addition of the acid. What is the pH after 0.195 mol of NaOH is...
A buffer is prepared by adding 150 mL of 1.0 M NaOH to 250 mL of...

A buffer is prepared by adding 150 mL of 1.0 M NaOH to 250 mL of 1.0 M NaH2PO4. How many moles of HCl must be added to this buffer solution to change the pH by 0.18 units? The answer is .025mol Please use chart if possible. Show all steps and calulations please

If you mixed 50 mL of 0.1 M TRIS acid with 60 mL of 0.2 M...

If you mixed 50 mL of 0.1 M TRIS acid with 60 mL of 0.2 M TRIS base, the resulting pH is 8.67. How many total mL of 1 M NaOH could you add to the solution and still have a good buffer (i.e. within one pH unit of the pKa which equals 8.3)?

What is the approximate pH of a buffer prepared by adding 300 mL of 0.7 M...

Homework Answers

Add Answer to:
What is the approximate pH of a buffer prepared by adding 300 mL of 0.7 M...

Post as a guest

Earn Coins

1) How would you make 300 ml of a 0.1 M sodium phosphate buffer, pH 7.0...

3. A buffer is prepared by adding 45,0 mL of 0.15 M sodium benzo Benzoic acid. What is the pH of the final solution...

A buffer is prepared by adding 45.0 mL of 0.15 M NaF to 35.0 mL of 0.10 M HF

Part A: What is the pH of a buffer prepared by adding 0.708 mol of the...

A buffer is prepared by adding 300.0 mL of 2.0 M NaOH to 500.0 mL of...

What is the pH of a buffer prepared by adding 6.0 mol of acetic acid and...

A buffer is prepared by mixing 14.0 ml of 0.243 M HNO2 and 28.5 ml of...

II, 8 part A: What is the pH of a buffer prepared by adding 0. 809...

A buffer is prepared by adding 150 mL of 1.0 M NaOH to 250 mL of...

If you mixed 50 mL of 0.1 M TRIS acid with 60 mL of 0.2 M...

What is the approximate pH of a buffer prepared by adding 300 mL of 0.7 M...

Homework Answers

Add Answer to: What is the approximate pH of a buffer prepared by adding 300 mL of 0.7 M...

Post as a guest

Earn Coins

Add Answer to:
What is the approximate pH of a buffer prepared by adding 300 mL of 0.7 M...