Calculate the pH of a 0.800M NaCH3CO2 solution. Ka for acetic acid, CH3CO2H, is 1.8×10^-5.

Expert Solution

CH3CO2- + H2O ------------------------> CH3COOH + OH-

0.800 0 0 -------------------> initial

-x x x ---------------------> changed

0.8-x x x -----------------------> equilibrium

Kb = [CH3COOH][OH-]/[CH3COO-]

Kw / Ka = x^2 / 0.8 -x

1.0 x 10^-14 / 1.8 x 10^-5 = x^2 / 0.8 -x

5.56 x 10^-10 = x^2 / 0.8 -x

x^2 + 5.56 x 10^-10 x - 4.45 x 10^-10 = 0

x = 2 .1 x 10^-5

[OH-] = 2 .1 x 10^-5 M

pOH = -log[OH-] = -log (2 .1 x 10^-5)

pOH = 4.68

pH + pOH = 14

pH = 9.32

queen_honey_blossom answered 2 years ago

Calculate the pH of a 0.800 M NaCH3CO2 solution. Ka for acetic acid, CH3CO2H, is 1.8...

Calculate the pH of a 0.800 M NaCH3CO2 solution. Ka for acetic acid, CH3CO2H, is 1.8 × 10-5. If someone could list the steps and calculations that would be helpful. Thank you!

Calculate the pH of a 0.51 M CH3COOK solution. (Ka for acetic acid = 1.8×10−5.)

Given Ka for acetic acid = 1.8 x 10-5, calculate the pH in the titration of...

Given Ka for acetic acid = 1.8 x 10-5, calculate the pH in the titration of 50.0 mL of 0.120 M acetic acid by 0.240 M sodium hydroxide after the addition of the following: 0.00 mL of the base. 10.0 mL of base. 25.0 mL of the base. 35.0 mL of the base. Please show all work

a. The ka of acetic acid is 1.8*10^-5. What is the pka of the acetic acid?...

a. The ka of acetic acid is 1.8*10^-5. What is the pka of the acetic acid? b.What should be the ph of a solution of 1.0 mL of 0.1 M acetic acid and 1.0 mL of 0.1 M sodium acetate and 48.0 mL H2O? c.What should be the ph of a solution of 5.0 ml of 0.1 M acetic acid and 5.0ml of 0.1M sodium acetate and 40.0ml h20? is the answer 4.74 for all parts ?? thanks

The Ka of acetic acid, CH3COOH, is 1.8 × 10-5. A buffer solution was made using...

The Ka of acetic acid, CH3COOH, is 1.8 × 10-5. A buffer solution was made using an unspecified amount of acetic acid and 0.30 moles of NaOOCCH3 in enough water to make 1.50 L of solution. The pH of the solution is 4.55. How many moles of CH3COOH were used? Could you please showing working on how to get the answer of 0.47.

Calculate the pH of a 0.100M NaCH3COO solution. Ka for acetic acid, HC2H3O2 is 1.8x10-5

Calculate the pH of a 0.51 M CH3COONa solution. (Ka for acetic acid = 1.8x10^-5)

What is the pH of a 0.135 M CH3CO2H solution? CH3CO2H Ka = 1.75 x 10-5

Calculate the pH of a 0.500M formic acid (HCOOH) solution. Ka for formic acid is 1.8×10-4.

3. a) Calculate the pH of a sodium acetate-acetic acid buffer solution (Ka= 1.78 x 10-5)...

3. a) Calculate the pH of a sodium acetate-acetic acid buffer solution (Ka= 1.78 x 10-5) in which the concentration of both components is 1.0 M. What would be the pH of the solution if 1.5 mL of 0.50 M NaOH was added to 35.0 mL of the buffer? How much does the pH change? b) If the same amount and concentration of NaOH was added to 35.0 mL of pure water (initial pH = 7), what would be the...

Question