6.02x 1020 molecules of urea are present in 100 mL of its solution. The concentration of solution is

Given number of molecules of urea =6.02×1020∴Number of moles =6.02×10206.02×1023=1×10−3molVolume of the solution =100mL=1001000L=0.1LConcentration of urea solution (in mol L-1)                                 =1×10−30.1=1×10−2molL−1    =0.01mol/L or M