Question

Calculate the molarity of a solution prepared by diluting 7.0 mL of 4.0 M solution to a volume of 30 mL. Select the correct answer below: 0.76 M 0.87 M 0.93 M 1.02 M

Answer 1

0.93 M

Step-by-step explanation:

Molarity =
`(Moles)/(Volume)`

4.0M =
`(x)/(0.007 L)`

4.0 M x 0.007 L = Moles = 0.028

Molarity =
`(Moles)/(Volume)`

Molarity =
`(0.028 moles)/(0.03 L)`

= 0.93 M