Question

Sample of pottasium chloride contain some sodium chloride is dissolve in water.20 ml of this solution on evaporation give 1.73g dry mixture on treatment with silver nitrate it give 3.73g of silver chloride . calculated mass of Back in10 ml of above solution?

Answer 1

Answer:

0.02 grams is the answer

Explanation:

then after agcl obtained from kcl is 3.27 g

agcl obtained from nacl is 3.37-3.27 =0.10

amount of kcl is 0.518*3.27=1.69 grams

amount of nacl is 1.36-0.405-3.27=0.04grams

this amount of kcl. and nacl is present in 20ml water

since,

the solution formed is homogeneous in nature ,and her uniform composition

mass of nacl in 10ml solution =0.04/2=0.02