Question # We have ( 100 mathrm{mL} ) of ( 0.1 mathrm{M} mathrm{KCl} ) solution. To make it ( 0.2 mathrm{M} ).

# We have ( 100 mathrm{mL} ) of ( 0.1 mathrm{M} mathrm{KCl} ) solution. To make it ( 0.2 mathrm{M} ).

(A) evaporate ( 50 mathrm{mL} ) water

(B) evaporate ( 50 mathrm{ml} ) solution

(C) add ( 0.1 mathrm{mol} mathrm{KCl} )

(D) add ( 0.01 mathrm{mol} mathrm{KCl} )

Solution

Correct option is (D) ( 0.01 mathrm{mol} mathrm{KCl} )