What is the molar solubility of Fe(OH)_2 (K_(sp) =8.0 xx 10^(-16) ) at pH 13.0 ?
K_(sp) (BaSO_(4)) is 1.1 xx 10^(10). In which case is BaSO_(4) precipitated ?
What is the maximum concentration of Mg^(+2) that can be introduced into a solution containing 0.1 M NH_3 and 0.01 M NH_4^(+ ) without causing precipitation of Mg (OH)_2 ? K_b of NH_3 = 10^(6) K_(sp) of Mg(OH)_2 =1.2 xx 10^(-12)
Number of moles of Cul (K_(sp) = 5 xx 10^(-12)) that will dissolve in 1 L of 0.1 M Nal solution is
K_a for HF is 3.2 xx 10^(-4) . Calculate the percentage of dissociation in 0.02 M HF solution.
At equilibrium , the concentrations of N_(2)=3.0xx10^(-3)M , O_(2)=4.2xx10^(-3)M and NO=2.8xx10^(-3)M in a sealed vessel at 800K . What will be K_(c) for the reaction N_(2)(g)+O_(2)(g)hArr2NO(g)
The precipitate of CaF_(2) (K_(sp) = 1.7 xx 10^(-10) ) is obtained when equal volumes of the following are mixed ?
[SO_4^(2-) ] must be exceed what value to obtain a RaSO_4 (K_(sp) =4xx 10^(-11)) ppt in 500 mL of a solution containing 1xx10^(-4) "mole" of Ra^(2+) ions ?
NARENDRA AWASTHI-IONIC EEQUILIBRIUM-Assertin-Reason Type Questions