Question

How many kilograms of water are needed to form a .50 m solution if 1.0 moles of solute are used? Please show work

Answer 1

Molarity of the resulting solution is given as 0.5M

Number of moles of solute to be used = 1.0 moles

The formula of molarity is given as = (moles present * 1000)/volume of water needed (V)

Substituting the values of molarity and the number of moles in the formula:

0.5 = (1.0 * 1000)/V

0.5V = 1000, V = 1000/0.5

Hence, volume needed = 2,000 cm³