Refer to an aqueous solution of formic acid, `HCOOH`, which has a `K_(a)` value of `1.9 xx 10^(-4)` at `25^(@)C`.
What is the percent ionization of a `0.10 M` solution of formic acid at `25^(@)C`

Refer to an aqueous solution of formic acid, HCOOH , which has a K_(a) value of 1.9 xx 10^(-4) at 25^(@)C . How many moles of sodium formate must be added to 1.0L of a 0.20M formic acid solution to produce a pH of 4.00 ?

What is the pH of a 0.05 M solution of formic acid? (K_(a)=1.8xx10^(-4))

K_(a) of a weak acid HA is 4x 10^(-5) at 25^(@)C ,Calculate degree of ionization of 8 x 10^(-5)M aq solution of HA at 25^(@) C

CaF_(2) has a K_(sp)=3.9xx10^(-11) at 25^(@) C. What is the [F^(-)] in a saturated solution of CaF_(2) at 25^(@) C?

What is the pH of a 0.15 M solution of formic acid, HCOOH ? {:("Formic Acid",K_a),(HCOOH,1.9xx10^(-4)):}

In a solution of formic acid (K_a=1.7xx10^(-4)) , the [H^+] =2.3xx10^(-3) .What is the concentration of formic acid in mol L^(-1) ?

At 25^(@)C , the value of ionisation constant of a weak monobasic acid, HA is 1.6xx10^(-4) . What is the degree of ionisation of HA in its 0.1(M) aqueous solution?

A weak monobasic acid is 1% ionized in 0.1 M solution at 25^@ C. The percentage of ionization in its 0.025 M solution is :