200 ml of water is added to 500 ml of 0.2 M solution. What is the molarity of this diluted solution?

Question

200 ml of water is added to 500 ml of 0.2 M solution. What is the molarity of this diluted solution? (A) 0.7093 M (B) 0.1428 M (C) 0.4005 M (D) 0.2897 M

Tardigrade Admin · Accepted Answer

No. of millimoles =500× 0.2=100 Total volume in mililitre = 500 + 200 = 700 Thus, molarity of diluted Solution: =(100 /700)=0.1428 M

Q. 200 ml of water is added to 500 ml of 0.2 M solution. What is the molarity of this diluted solution?

0.7093 M

0.1428 M

0.4005 M

0.2897 M

No. of millimoles $= 500 \times 0.2 = 100$

Total volume in mililitre = 500 + 200 = 700

Thus, molarity of diluted Solution: $= \frac{100}{700} = 0.1428$ $M$

Q. 200 ml of water is added to 500 ml of 0.2 M solution. What is the molarity of this diluted solution?

0.7093 M

0.1428 M

0.4005 M

0.2897 M

No. of millimoles =500×0.2=100 Total volume in mililitre = 500 + 200 = 700 Thus, molarity of diluted Solution: =700100​=0.1428 M

No. of millimoles $= 500 \times 0.2 = 100$

Total volume in mililitre = 500 + 200 = 700

Thus, molarity of diluted Solution: $= \frac{100}{700} = 0.1428$ $M$