Question

What is the concentration of a solution formed by diluting 25.0 ml of a 3.8M glucose solution to 250ml

Answer 1

Explanation : số mol glucose 3.8M là :

n = Cm . V = 3.8 . 25 =95

=> Cm khi pha loãng = $\frac{n}{V}$ = $\frac{95}{250}$ = 0.38M