What is the concentration of Ba^(2+) when BaF_(2) (K_(sp)=1.0xx10^(-6)) begins to precipitate from a solution that is 0.30 M F^(-) ?
What is the pH of a saturated solution of Cu(OH)_(2) ? (K_(sp)=2.6xx10^(-19)
What is the concentration of Pb^(2+) when PbSO_(4) (K_(sp)=1.8xx10^(-8)) begins to precipitate from a solution that is 0.0045 M in SO_(4)^(2-) ?
Calculate the pH of 0.2 M CH_3 COOH (K_a = 1.5 xx 10^-5) .
To what volume of 10 litre of 0.5 M CH_(3)COOH (K_(a)=1.8xx10^(-5)) be diluted in order to double the hydroxide ion concentration :
Calculate the ratio of [HXOO^(-)] and [F^(-)] in a mixture of 0.2 M HCOOH (K_(a)=2xx10^(-4)) and 0.1 M HF (K_(a)=6.6xx10^(-4)) :
A saturated solution of Ca_(3)(PO_(4))_(2) has [Ca^(2+)]=2xx10^(-8) M and [PO_(4)^(3-)]=1.6xx10^(-5) M K_(sp) of Ca_(3)(PO_(4))_(2) is :
A semiconductor has electron concentration of 8 xx 10^8 m^(-3) . and hole concentration 4xx10^(10)m^(-3) .Is this semiconductor p-type or n-type?
What is the concentration of CH_(3)COOH(aq.) in a solution prepared by dissolving 0.01 mole of NH_(4)^(+)CH_(3)COO^(-) in 1 L H_(2)O ? [K_(a(CH_(3)COOH))=1.8xx10^(-5)),K_(b(NH_(4)OH)=1.8xx10^(-5))]
Calculate pH of a resultant solution of 0.1 M HA (K_(a)=10^(-6)) and 0.45 M HB (K_(a)=2xx10^(-6)) at 25^(@)C.
NARENDRA AWASTHI-IONIC EEQUILIBRIUM-Assertin-Reason Type Questions
