Question

10 g of commercial sample of copper sulphate were dissolved in water and the volume made up to 500mL. 25mL of this solution was treated with excess of Kl and the librated iodine required 30mL of N/Na_2 S_2 O_(3 ) solution. Calculate the percentage of copper in sample. answer:

Answer 1

Answer:

nhi pta bhai nhi pta yr....Ye question hi galat h tumhara