Calculate the `[H^+]` in a 0.25 M solution of methylamine, `CH_3NH_2(K_b=4.4xx10^(-4))`

Caculate the pH value of 0.20M solution of methyl amine (CH_(3)NH_(2)) at 298 K, given that its ionisation constant (K_(b)) is 4.4 xx 10^(-5).

Calculate the pH of 2.5 xx 10^(-4) M HCl solution.

Calculate the pH of a 2.0 M solution of NH_4Cl. [K_b(NH_3)= 1.8 xx 10^(-5)]

Calculate the pH of 0.01 M NH_4Cl solution at 25^@C . K_b for NH_4OH=1.81xx10^(-5)

Calculate degree of hydrolysis and pH of 0.25 NaCN solution at 25^@C . K_a=4.8xx10^(-10)

Calculate the pH of 0.10 M solution of Nh_(4)Cl. The dissociation constant (K_(b)) of NH_(3) is 1.8xx10^(-5)

When 0.05 M dimethyl amine is dissolve in 0.1 M NaOH solution then the percentage dissociation of dimethyl amine is : (K_(b))_((CH_(3))_(2)NH)=5xx10^(-4)