Guest

a mixture 100m mol of calcium hydroxide and 2g of sodium sulphate was dissolved in water and the volume was made upto 100ml. the mass of calcium sulphate formed and the concentration of OH- in resulting solution respectively are?

a mixture 100m mol of calcium hydroxide and 2g of sodium sulphate was dissolved in water and the volume was made upto 100ml. the mass of calcium sulphate formed and the concentration of OH- in resulting solution respectively are?
 

Grade:12

1 Answers

Anjali
15 Points
5 years ago
0.1mol- Ca(OH)2
2g- Na2SO4
Volm- 100ml
Ca(OH)2 +Na2SO4 --> CaSO4 +2NaOH
  0.1mol     2÷142
   1mol of Na2SO4--> 1 mol of CaSO4
    2÷142 mol -->  2÷142 mol of CaSO4
     2÷142=x÷140
X=2g
 
Concn of OH` = moles÷volm
                         = [(4÷142)×1000]÷100
                         =0.3M
    

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free