Question

How much of a concentrated 7.3 M NaCl solution would I need to dilute with water to make 50.0 mL of a new NaCl solution with 2.3 M concentration?

Answer 1

Answer:

15.7 mL

Explanation:

For this problem, you will have to use the equation $M_{1} V_{1} =M_{2} V_{2}$.

Plug in the values you were given and solve for $V_{1}$.

$(7.3 M)(V_{1} )=(2.3M)(0.05L)\\V_{1} =0.0157 L$

You can convert liters to milliliters and get 15.7 mL.