HomeworkLib
Question

Calculate the grams of sodium acetate required to make 250.0 mL of a pH 5.50 buffer...

Calculate the grams of sodium acetate required to make 250.0 mL of a pH 5.50 buffer solution using 0.100 M acetic acid (Ka of 1.8x10-5).

science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Av, ел. ека - -Log ka = -log (1.8x10-5) - 4.74 *mones of CH₃COOH = volume (L) x molarity (moll) = 0.2SOL XO.loom = 0.025 mol

0 0
Add a comment
Know the answer?
Add Answer to:
Calculate the grams of sodium acetate required to make 250.0 mL of a pH 5.50 buffer...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • calculate the number of grams of CH3COONa * 3H2O (sodium acetate tri-hydrate) needed to make 250.0...

    calculate the number of grams of CH3COONa * 3H2O (sodium acetate tri-hydrate) needed to make 250.0 mL of a CH3COOH (acetic acid)/ CH3COONa * 3H2O buffer. The target pH of the buffer is 5.25. The given concentration of [CH3COOH] is equal to 0.10 M. Ka = 1.80 x 10-5 for acetic acid. Use the Henderson-Hasselbalch equation to determine the ratio of [CH3COO-]/[CH3COOH] needed to make the buffer. pH = pKa + log([CH3COO-]/[CH3COOH]) Now calculate the concentration of acetate ion (CH3COO-...

  • calculate the number of grams of CH3COONa * 3H2O (sodium acetate tri-hydrate) needed to make 250.0...

    calculate the number of grams of CH3COONa * 3H2O (sodium acetate tri-hydrate) needed to make 250.0 mL of a CH3COOH (acetic acid)/ CH3COONa * 3H2O buffer. The target pH of the buffer is 5.25. The given concentration of [CH3COOH] is equal to 0.10 M. Ka = 1.80 x 10-5 for acetic acid. PLEASE EXPLAIN :( Q1:Given the Ka value in the instructions (1.80 x 10-5). Calculate the pKa Q2:Use the Henderson-Hasselbalch equation to determine the ratio of [CH3COO-]/[CH3COOH] needed to...

  • A buffer solution is prepared by dissolving 1.000 g of sodium acetate (CH3COONa) into 100.00 mL...

    A buffer solution is prepared by dissolving 1.000 g of sodium acetate (CH3COONa) into 100.00 mL of a 0.100 M solution of acetic acid. Then 2.00 mL of a 1.00 M solution of hydrochloric acid is added to the acetic acid/sodium acetate buffer solution. The Ka of acetic acid is 1.8 × 10−5. What is the pH of HCl?

  • 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...

  • Calculate the pH of the solution created by mixing 0.5 g solid sodium acetate with 50...

    Calculate the pH of the solution created by mixing 0.5 g solid sodium acetate with 50 mL of 0.1 M acetic acid. The Ka of acetic acid is 1.8x10-5

  • A buffer solution is prepared by dissolving 1.000 g of sodium acetate (CH2COONa) into 100.00 mL...

    A buffer solution is prepared by dissolving 1.000 g of sodium acetate (CH2COONa) into 100.00 mL of a 0.100 M solution of acetic acid. Then 1.80 mL of a 10.00 M solution of hydrochloric acid is added to the acetic acid/sodium acetate buffer solution. The K, of acetic acid is 1.8 x 10-5. What is the pH of the solution after adding HCI? pH

  • Aqueous Equilibria Buffer Problem How many grams of sodium hydroxide must be added to 500.0 mL...

    Aqueous Equilibria Buffer Problem How many grams of sodium hydroxide must be added to 500.0 mL of buffer made from 1.500 M acetic acid and 1.500 M sodium acetate to make the pH equal to 4.78? Ka for acetic acid is 1.8 x 10-5. Solution is [2.8 x 10^-5 g] Please show all steps

  • Part A) you will be preparing a buffer solution. The solution is 50.0 mL of a...

    Part A) you will be preparing a buffer solution. The solution is 50.0 mL of a 0.200 M acetate buffer, pH 5.00, starting from a 1.00 M solution of acetic acid and solid sodium acetate. pKa of acetic acid = 4.74                                                                    molar mass of sodium acetate = 82 g/mol Hint:    Use the Henderson-Hasselbach equation (Eq. 21)             Use the equation [salt] + [acid] = 0.200 M Please calculate the number of mL of 1.00 M acetic acid and the number of...

  • calculate the ph of a buffer solution that contains 1.5 M acetic acid (CH3COOH) and 0.3...

    calculate the ph of a buffer solution that contains 1.5 M acetic acid (CH3COOH) and 0.3 M sodium acetate (CH3COONa) [Ka=1.8x10-5 for acetic acid]

  • 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.

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT