Question

A 15.0-mL sample of 2.00 M NaNO is diluted to a final volume of 40.0 mL. What is themolarity of the dilute solution?

Answer 1

0.750 M

Step-by-step explanation

Given:

Initial volume, V₁ = 15.0 mL

Initial molarity, M₁ = 2.00 M

Final volume, V₂ = 40.0 mL

What to find:

The molarity (M₂) of the dilute solution.

Step-by-step solution:

The molarity (M₂) of the dilute solution can be determined using the dilution formula.

`M_1V_1=M_2V_2`

Substitute the values of the given parameters into the formula, we have

`\begin{gathered} 2.00M*15.0mL=M_2*40.0mL \\ \\ M_2=(2.00M*15.0mL)/(40.0mL) \\ \\ M_2=0.750\text{ }M \end{gathered}`

Thus, the molarity (M₂) of the dilute solution is 0.750 M