Equilibrium Tes...

Given exothermic reaction,

In a system, $$  A(s) \rightleftharpoons 2 B(g)+3 C(g),  $$ if the concentration of $$  C  $$ at equilibrium is increased by a factor of 2, it will cause the equilibrium concentration of $$  B  $$ to change to:

For which salt the $$\mathrm { pH }$$ of its solution does not change with dilution?

What is $$ [H^+] $$ in mol/L of a solution that is 0.20 M $$ CH_3CCONa $$ and 0.10 M in $$ CH_3COOH $$? 

The equilibrium of the reaction $$ N_2(g) + 3H_2(g) \leftrightharpoons 2NH_3(g) $$ will shift to the product side when 

The $$pH$$ of an aqueous solution of sodium chloride at $$60^{\circ}C$$ is

The dissociation constant of formic acid is $$0.00024$$. The hydrogen ion concentration in $$0.002 M \ HCOOH$$ solution is nearly

The degree of dissociation of pure water at $$25^{\circ}C$$ is found to be $$1.8 \times 10^{-9}$$. The dissociation constant, $$K_{d}$$ of water, at $$25^{\circ}C$$ is

For a reversible reaction : $$ A +B \leftrightharpoons C $$ if the concentration of the reactions are doubled at a definite temperature, then equilibrium constant will