Question

A bottle contains 500 ml of 2.4 M hcl solution .how much water should be added to dilute it to 1.6 M hcl solution

Answer 1

In solving this problem, we can use the formula

m1v1 = m2v2

m1 = initial concentration (molarity)

v1 = initial volume

m2 = final concentration (molarity)

v2 = final volume


2.4 x 500 = 1.6 x v2


v2 = $\frac{2.4x500}{1.6}$

v2 = 750 ml


Volume of water to be added = 750 - 500

                                               = 250 ml

Answer 2

Explanation:

Write your observation when the following take place:- i)An aqueous solution of sodium chloride is heated to dryness. Ii) A mixture of iron filings and Sulphur is heated strongly