Robinson26703
Robinson26703 Robinson26703
  • 18-03-2020
  • Chemistry
contestada

How many milliliters of a 2.00 M KBr are needed to prepare 250.0 mL of 0.60 M KBr?

How many milliliters of a 200 M KBr are needed to prepare 2500 mL of 060 M KBr class=

Respuesta :

Eduard22sly
Eduard22sly Eduard22sly
  • 18-03-2020

Answer:

75mL

Explanation:

Data obtained from the question include:

C1 = 2M

V1 =?

C2 = 0.60M

V2 = 250mL

The original volume of solution can be obtained as follows:

C1V1 = C2V2

2 x V1 = 0.6 x 250

Divide both side by 2

V1 = (0.6 x 250) / 2

V1 = 75mL

The volume needed is 75mL

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