What volume of a 0.75M solution is needed to make 500 mL of a 0.25M solution?

Thus 167 ml of a 0.75M solution is needed to make 500 mL of a 0.25M solution

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

According to the dilution law,

where,

= molarity of concentrated solution = 0.75 M

= volume of concentrated solution = ?

= concentration of dilute solution= 0.25 M

= volume of dilute solution= 500 ml

Putting in the values we get:

Thus 167 ml of a 0.75M solution is needed to make 500 mL of a 0.25M solution

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)

c) should be the answer.