6.02 xx 10^(20) molecules of urea are present in 100 mL of its solution. The concentration of urea solution is:

6.02 xx 10^(20) molecules of urea are present in 100 mL of its solutio

1.	6.02 xx 10^(20) molecules of urea are present in 100 mL of its solution. The concentration of urea solution is:
Answer» 0.001 M 0.01 M 0.02 M 0.1 M Solution :No. of MOLES of urea taken `=(6.02 xx 10^(20))/(6.022 xx 10^(23)) = 10^(-3)` `therefore` MOLARITY of solution `=10^(-3)/100 xx 1000 = 0.01 M`