What will be the ph of 1.0 m ammonium formate

Asked by admin @ in Chemistry viewed by 240 People

What will be the pH of 1.0 M ammonium formate solution, if Ka = 1 *10^-4 acid Kb = 1 *10^-5:

Answered by admin @


Answer: pH pf ammonium formate solution will be 6.5

Explanation: Ammonium formate is a salt of weak acid (formic acid) and strong base (ammonia). We can calculate pH by using the formula:

pH=\frac{1}{2}(pK_w+pK_a-pK_b)

We are given values of K_a\text{ and }K_b

K_a=1\times10^{-4}\\K_b=1\times10^{-5}

Relation between pK_a\text{ and }K_a is

pK_a=-logK_a

pK_a=-log(0.0004)

pK_a=4

similarly, pK_b=5

and pK_w=14  (known)

Putting values in equation 1, we get

pH=\frac{1}{2}(14+4-5)

pH = 6.5


Similar Questions

What is the ph of a 0.050 m lioh solution

Asked by admin @ in Chemistry viewed by 284 persons

50.0 mL of an HNo3 solution were titrated with 36.90 mL of a 0.100 M LiOH solution to reach the equivalence point. What is the molarity of the HNO3 solution.

Calculate the ph of 10 8 m hcl

Asked by admin @ in Chemistry viewed by 319 persons

What is the pH of 10-8 M HCl solution?

Calculate the ph of a 0.10 m ammonia solution

Asked by admin @ in Chemistry viewed by 373 persons

Calculate the pH of a 0.10 M ammonia solution.

Calculate the ph of 10 8 m hcl solution

Asked by admin @ in Chemistry viewed by 324 persons

What is the pH of 10-8 M HCl solution?

The ph of 0.5 m aqueous solution of hf

Asked by admin @ in Chemistry viewed by 335 persons

The pH of 0.5 m aqueous solution of HF ( Ka=2×10-⁴) is

The ph of a 0.005 m h2so4 solution is

Asked by admin @ in Chemistry viewed by 333 persons

Calculate the pH of 0.005 M H2SO4

The ph of 10 8 m hcl solution is

Asked by admin @ in Chemistry viewed by 313 persons

What is the pH of 10-8 M HCl solution?

What is the ph of 10 8 m hcl

Asked by admin @ in Chemistry viewed by 289 persons

What is the pH of 10-8 M HCl solution?

Ph of 0.05 m h2so4

Asked by admin @ in Chemistry viewed by 239 persons

Calculate the ph of 0.05 M H2SO4 solution

What is the ph of a 0.001 m hno3 solution

Asked by admin @ in Chemistry viewed by 301 persons

What is the pH of 0.001 M HNO3 solution ? Please give explanation.​

What is the ph of a 0.001 m hcl solution

Asked by admin @ in Science viewed by 389 persons

Calculate the pH of 0.001 molar solution of HCL

What is the ph of a 0.270 m ammonia solution

Asked by admin @ in Chemistry viewed by 298 persons

What is the ph of a 0.40 m ammonia solution?

The ph of a 0.01 m solution of hcl is

Asked by admin @ in Chemistry viewed by 332 persons

Calculate the pH value of 0.01 M HCL?​

What is the ph of a 0.001 m koh solution

Asked by admin @ in Chemistry viewed by 318 persons

At 90degree Celsius, the pH of 0.001M KOH solution will be​

What is the ph of a 0.00125 m hcl solution

Asked by maham237 @ in Biology viewed by 315 persons

Most viewed questions in Chemistry

Discuss sn2 mechanism of methyl bromide using aqueous koh

Asked by admin @ in Chemistry viewed by 2187 persons

Comparing lactose percentage between whole milk and powdered milk

Asked by admin @ in Chemistry viewed by 1926 persons

Lewl letpa

Asked by maham237 @ in Chemistry viewed by 1563 persons

50 examples of unbalanced chemical equations with answers

Asked by admin @ in Chemistry viewed by 1394 persons

Chromium metal is immersed in an aqueous solution of cobalt(ii) chloride.

Asked by maham237 @ in Chemistry viewed by 1321 persons

Prepare a chart giving detailed information of carbon compounds

Asked by admin @ in Chemistry viewed by 1283 persons

Which 1 mole sample has the least entropy

Asked by maham237 @ in Chemistry viewed by 1271 persons

If you are given the assignment to cut raw poultry

Asked by maham237 @ in Chemistry viewed by 1250 persons

Effect of succinic acid on cst of phenol water system

Asked by admin @ in Chemistry viewed by 1247 persons

The reaction between aluminium powder and anhydrous barium nitrate

Asked by maham237 @ in Chemistry viewed by 1220 persons

Cnh4 lewis structure

Asked by maham237 @ in Chemistry viewed by 1143 persons

2 3 dihydroxypropanal

Asked by maham237 @ in Chemistry viewed by 1048 persons

Select true statements about the pentose phosphate pathway

Asked by maham237 @ in Chemistry viewed by 1034 persons

Crossword puzzle on carbon and its compounds class 10

Asked by admin @ in Chemistry viewed by 1008 persons

Ionic bond calculator

Asked by maham237 @ in Chemistry viewed by 984 persons