Calculate the mass %of sodium in sodium sulphate (Na2SO4).
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)) :
What is the molar solubility of Mn(OH)_(2) (K_(sp)=4.5xx10^(-14)) in a buffer solution containing equal amounts of NH_(4)^(+) and NH_(3) (K_(b)=1.8xx10^(-5)) ?
Calculate the pH of 0.2 M H_2SO_4 .
Fixed volume of 0.1 M benzoic acid (pK_(a)=4.2) solution is added into 0.2 M sodium benzoate solution and formed a 300 mL, resultant acidic buffer solution. If pH of this buffer solution is 4.5 then find added volume of benzoic acid :
Calculate the potential of a half cell having reaction : Ag_2S(s)+2e^(-)iff2Ag(s)+S^(2-)(aq) in a solution buffered at pH=3 and which is also saturated with 0.1 MH_2 S(aq): [Given: K_(sp)(Ag_2S)=10^(-49),K_(a1)=10^(-8)*K_(a2)=1.1 X 10^(-13)] E=( Ag^+// Ag^+2) =0.8
Calculate the pH of the following solutions: 0.02 mol of hydrochloric acid in 2L of solution.
What is the molarity of a saturated solution of CaCO_(3) ? (K_(sp)=2.8xx10^(-9))
NARENDRA AWASTHI-IONIC EEQUILIBRIUM-Assertin-Reason Type Questions
