Solve this: 10 6 g of a substance of molecular weight 106 was dissolved in 100 ml 10 ml - Chemistry - Solutions

Question

Solve this:
10 6 g of a substance of molecular weight 106 was dissolved in 100
ml 10 ml of this solution was pipetted out into a 1000 ml flask and
made up to the mark with distilled water The molarity of the
resulting solution is
1) 1 M 2) 10-2 M
3) 10-3 4) 10-4 M

Vartika Jain · Accepted Answer

Dear Student,

Initial Molarity of the solution,M1= MassMolar mass×1000Volume of solution                                                  =10
6106×1000100                                                  =1 MUsing dilution formula, M1V1=M2V2M1= 1MV1 = 10 mlV2=1000 mlSo, M2=M1V1V2            =1×101000            =10-2 MHence, correct answer is (2)

Solve this: 10.6 g of a substance of molecular weight 106 was dissolved in 100 ml. 10 ml of this solution was pipetted out into a 1000 ml flask and made up to the mark with distilled water. The molarity of the resulting solution is 1) 1 M 2) 10-2 M 3) 10-3 4) 10-4 M

Solve this:
10.6 g of a substance of molecular weight 106 was dissolved in 100 ml. 10 ml of this solution was pipetted out into a 1000 ml flask and made up to the mark with distilled water. The molarity of the resulting solution is
1) 1 M 2) 10^-2 M
3) 10^-3 4) 10^-4 M