Part A Determine the [H3O+] of a 0.250 M solution of formic acid. Express your answer...

Part A Determine the [H3O+] of a 0.250 M solution of formic acid. Express your answer using two significant figures.

Part B

Determine pH of this solution of formic acid.

Express your answer to two decimal places.

Expert Solution

HCOOH + H2O ----------> HCOO^- + H3O⁺

I 0.25 0 0

C -x +x +x

E 0.25-x +x +x

Ka = [HCOO-][H3O+]/[HCOOH]

1.77*10^-4 = x*x/0.25-x

1.77*10^-4 *(0.25-x) = x^2

x = 0.00656

[H3O+] = x = 0.00656M

PH = -log[H3O+]

= -log0.00656

= 2.183

queen_honey_blossom answered 2 years ago

Part A: Determine the [H3O+] of a 0.200 M solution of formic acid. Express your answer...

Part A: Determine the [H3O+] of a 0.200 M solution of formic acid. Express your answer using two significant figures. Part B: Determine pH of this solution of formic acid. Express your answer to two decimal places.

Part A Determine the [H3O+] of a 0.230 M solution of formic acid. Express your answer...

Part A Determine the [H3O+] of a 0.230 M solution of formic acid. Express your answer using two significant figures. Part B Determine pH of this solution of formic acid. Express your answer to two decimal places.

Part A Determine the [H3O+] of a 0.250M solution of formic acid. Express your answer using...

Part A Determine the [H3O+] of a 0.250M solution of formic acid. Express your answer using two significant figures. [H3O+] = ??? Part B Determine pH of this solution of formic acid. Express your answer to two decimal places. pH=???

Part A: Calculate the [H3O+] of the following polyprotic acid solution: 0.370 M H3PO4. Express your...

Part A: Calculate the [H3O+] of the following polyprotic acid solution: 0.370 M H3PO4. Express your answer using two significant figures. Part B: Calculate the pH of this solution. Express your answer using one decimal place. Part C: Calculate the [H3O+] and pH of the following polyprotic acid solution: 0.360 M H2C2O4. Express your answer using two significant figures. Part D: Calculate the pH of this solution. Express your answer using two decimal places. Thank you so much!!

Calculate the [H3O+] of the following polyprotic acid solution: 0.380 M H3PO4. Express your answer using...

Calculate the [H3O+] of the following polyprotic acid solution: 0.380 M H3PO4. Express your answer using two significant figures. [H3O+] = Part B Calculate the pH of this solution. Express your answer using one decimal place. pH = Part C Calculate the [H3O+] and pH of the following polyprotic acid solution: 0.330 M H2C2O4. Express your answer using two significant figures. [H3O+] = Part D Calculate the pH of this solution. pH =

Calculate the [H3O+] of the following polyprotic acid solution: 0.135 M H3C6H5O7. Express your answer using...

Calculate the [H3O+] of the following polyprotic acid solution: 0.135 M H3C6H5O7. Express your answer using two significant figures. Calculate the pH of this solution Express your answer to two decimal places.

a) Calculate the pH of a 0.250 M solution of formic acid, HCO2H? Ka, HCO2H =...

a) Calculate the pH of a 0.250 M solution of formic acid, HCO2H? Ka, HCO2H = 1.8 x 10-4. HCO2H(aq) ⇌HCO2-(aq) + H+(aq) b) What is the concentration of HCO2H at equilibrium?

Calculate the pH of each solution. Part A [H3O+] = 7.7×10−8 M Express your answer using...

Calculate the pH of each solution. Part A [H3O+] = 7.7×10−8 M Express your answer using two decimal places. pH = Part B [H3O+] = 7.0×10−7 M Express your answer using two decimal places. pH = Part C [H3O+] = 4.2×10−6 M Express your answer using two decimal places. pH = Part D [H3O+] = 6.4×10−4 M Express your answer using two decimal places. pH = Part E [OH−] = 9.9×10−7 M Express your answer using two decimal places. Part...

Formic acid (HCOOH) is secreted by ants. Calculate [H3O+] for a 4.98E-2 M aqueous solution of...

Formic acid (HCOOH) is secreted by ants. Calculate [H3O+] for a 4.98E-2 M aqueous solution of formic acid (Ka = 1.80E-4).

Part A) Determine the [OH−] of a solution that is 0.150 M in CO32−. Express your...

Part A) Determine the [OH−] of a solution that is 0.150 M in CO32−. Express your answer using two significant figures. Part B) Determine the pH of a solution that is 0.150 M in CO32−. Express your answer to two decimal places. Part C) Determine the pOH of a solution that is 0.150 M in CO32−. Express your answer to two decimal places.

Question