Asolution x is made by taking 10.00 ml of a 1.0 m solution and add enough water to make 100.0 m
total volume. solution y is made by taking 5.0 ml of solution x and diluting it again by adding it to
95 ml of water. calculate the molarity of solutions x and y.

Molarity of solution X is 0.1 M

Molarity of solution Y is 0.05 M

Explanation:Dilution involves addition of more solvent to a solution resulting to a decrease in concentration.Solution X is made by taking 10 mL of a 1.0 M and adding water to make a total volume of a 100 mL.Using dilution equation we can determine the Molarity of solution x.Dilution equation is given by, M₁V₁ = M₂V₂, where M₁ and M₂ are the initial and diluted solution concentrations while V₁ and V₂ are the start and the final volume respectively.

Therefore;

M₂ = M₁V₁ ÷ V₂

    = (1.0 M × 0.01 L) ÷ 0.1 L

    = 0.1 M

Thus, the concentration of solution X is 0.1 M

On the other hand, solution Y is made by using 5 mL of solution X and diluting it again by adding it to 95 mLTherefore, using dilution equation we can find the molarity of solution Y

M₁V₁ = M₂V₂

M₁ = 0.1 M (molarity of solution X)

V = 5 mL

V₂ = 5 mL + 95 mL

     = 100 mL

Thus, M₂= M₁V₁ ÷ V₂

              = (0.1 M × 0.005 L) ÷ 0.01 L

              = 0.05 M

Therefore, the molarity of solution Y is 0.05 M

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