What is the molar solubility of Fe(OH)_2 (K_(sp) =8.0 xx 10^(-16) ) at pH 13.0 ?
What is the pH of a solution obtained by dissolving 0.0005 mole of the strong electrolyte, calcium hydroxide, Ca(OH)_(2) , to form 100 ml of a saturated solution (aqueous)? (K_(w)=1.0xx10^(-14) "mole"^(2) "litre"^(-2))
The specific conductance of a saturated solution of a salt MX is 2.8 xx 10^(-7) Omega^(-1) cm^(-1) and the equivalent conductances at infinite dilution of M^(+1) and X^(-1) ions are 68 and 72 Omega^(-1) cm2 / equivalent respectively Hence, the K_(sp) of MX is found to be
pH of saturated Mg(OH)_(2) , solution is 12, then
The P^(H) of an aqueous solution of NH_4 CN( K_a of HCN is 9.2 xx 10^(-10) & K_b of NH_4 OH is 1.8 xx 10^(-5))
Calculate the concentration of silver ion, if water is saturated with AgCNS (K_(sp) =1 xx 10^(-12)) and AgBr (K_(sp) = 5 xx 10^(-13) ).
A saturated solution of Ca_3 (PO_4) _2 has [Ca^(+2) ]=2xx 10 ^(-8) M and [PO_4^(-3) ] =1.6 xx 10 ^(-5) M , K_(sp) " of " Ca_3(PO_4) _2 is
A solution of 0.01 MCd^(2+) contains 0.01M NH_4OH. What conc. Of NH_4^(+) from NH_4Cl is necessary to prevent precipitation of Cd( OH)_2? K_(sp) " of " (OH)_2 =2.0 xx 10^(-14) ,K_b " of " NH_4 OH = 1.8 xx 10^(-5) if answer is 1.272 xx 10^(-x) mol/litre then x=________?
NARENDRA AWASTHI-IONIC EEQUILIBRIUM-Assertin-Reason Type Questions
