Calculate the concentration of the formate ion present in 0.100 M formic acid (HCOOH) solution at equilibrium `(K_(a) = 1.7xx10^(-4))`.

Calculate the concentration of all species of significant concentrations presents in 0.1 M H_(3)PO_(4) solution. lf K_(1) = 7.5 xx 10^(-3), K_(2) = 6.2 xx 10^(-8), K_(3) = 3.6 xx 10^(-13)

The hydrogen ion concentration of a 0.006 M benzoic acid solution is (K_(a) = 6 xx 10^(-5))

Calculate the concentration of hydrogen ion in the acidic solution with pH a. 4.3

Calculate pH of 0.05 M Acetic acid solution , if K_(a)(CH_(3)COOH) = 1.74 xx 10^(-5) .

Calculate the ratio of sodium formate and formic acid (K_(a)=2xx10^(-4)) in a buffer solution of pH=4.3.

Calculate the concentration of hydroxyl ions in a 0.1 M solution of ammonia if the value of K_b is 1.76 xx 10^(-5)

Calculate the ratio of concentration of HCOO^(-) & OCN^(-) ions in a solution containing 0.1M HCOOH (K_(a)=1.8xx10^(-4)) and 0.1M HOCN(K_(a_(1))=4xx10^(-4)) .if simplest ratio is a:b reprot your answer as (a+b) .

A solution contains 0.10 M H_2S and 0.3 HCl Calculate the concentration of S^(2-) and HS^(-) ions in the solution . For H_2S , K_(a_1) = 1 xx 10^(-7) and K_(a_2) = 1.3 xx 10^(-13)

What will be the hydrogen ion concentration of a solution obtained by mixing 500 ml of 0.20 M acetic acid 500 ml of 0.30 M sodium acetate (K_(a) = 1.75 xx 10^(-5))

What is the approximate OH^(-) ion concentration of a 0.150M NH_(3) solution? (K_(b)=1.75xx10^(-5))