Question

A buffer solution is prepared by adding 1.5 g of potassium acetate (FW=98.15 g/mol) to 5.80...

A buffer solution is prepared by adding 1.5 g of potassium acetate (FW=98.15 g/mol) to 5.80 mL of 3.00 M acetic acid. Water was added to bring the total volume to 100.0 mL. The pH of the buffer was then adjusted to a value of pH = 4.50 using 2.00 M HCl. How many mL of HCl were added in order to make this adjustment? PLEASE SHOW WORK

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1b. Calculate the exact molarity of a solution of NaOH if 55.00 mL of it is...
1b. Calculate the exact molarity of a solution of NaOH if 55.00 mL of it is needed to titrate an amount of KHP that equals your average mass (that you stated above). Average is 50.0 (4 pts) 2a. What is the average molarity for your standardized NaOH solution?_______________ (1 pt) Average: .0075 M 2b. If 1.20 grams of impure solid KHP sample required 2.53 mL of your standardized NaOH to reach the end point, what was the percent KHP in...
A buffer solution was prepared by adding 4.95 g of sodium acetate to 250 mL of...
A buffer solution was prepared by adding 4.95 g of sodium acetate to 250 mL of 0.15 M acetic acid. What is the pH of 100 mL of this buffer solution if you add 82 mg of NaOH to the solution
A buffer solution that is 0.10 M sodium acetate and 0.20 M acetic acid is prepared....
A buffer solution that is 0.10 M sodium acetate and 0.20 M acetic acid is prepared. Calculate the initial pH of this solution. The Ka for CH3COOH is 1.8 x 10-5 M. As usual, report pH to 2 decimal places. Calculate the pH when 21.1 mL of 0.014 M HCl is added to 100.0 mL of the above buffer.
Prepare 100.0 mL of a 1.00 M pH 5.00 buffer using solid sodium acetate (FW =...
Prepare 100.0 mL of a 1.00 M pH 5.00 buffer using solid sodium acetate (FW = 82.031 g mol–1 ) and 6.00 M aqueous acetic acid (Ka = 1.78 x 10–5 ). How many mL of acetic acid and how many g of sodium acetate are needed? So far I have: pka=4.75 5= 4.75 +log [A]/[HA] .25= log [A]/[HA] 1.78=[A]/[HA]
What is the pH of a buffer prepared by adding 0.809 mol of the weak acid...
What is the pH of a buffer prepared by adding 0.809 mol of the weak acid HA to 0.305 mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66×10−7.? 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 added to the buffer from Part A? Assume...
An acetic acid/ sodium acetate buffer solution similar to the one you made in the lab...
An acetic acid/ sodium acetate buffer solution similar to the one you made in the lab was prepared using the following components: 3.46 g of NaC2H3O2∙3H2O (FW. 136 g/mol) 9.0 mL of 3.0 M HC2H3O2 55.0 mL of water If you take half of this solution and add 2 mL of 1.00 M HCl to it, then what is the pH of this new solution?
Part A: What is the pH of a buffer prepared by adding 0.607 mol of the...
Part A: What is the pH of a buffer prepared by adding 0.607 mol of the weak acid HA to 0.507 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...
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...
Part A What is the pH of a buffer prepared by adding 0.809 mol of the...
Part A What is the pH of a buffer prepared by adding 0.809 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. What is the pH after 0.195 mol of NaOH is added to the buffer...
Part A What is the pH of a buffer prepared by adding 0.405 mol of the...
Part A What is the pH of a buffer prepared by adding 0.405 mol of the weak acid HA to 0.608 mol of NaA in 2.00 L of solution? pH = 6.423 . 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. Express the pH numerically to three decimal places. Part C What is the pH after 0.195 mol of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT