Question

You need to make 10 mL of 2 mg/mL solution of protein and you have 25 mg/mL solution. How much protein solution and water do you need to mix in order to make the required solution?

Answer 1

Answer:

The protein solution needed is 0.8mL and the water needed 1000mL

Explanation:

C1 = 2 mg/mL

V1 = 10 mL

C2 = 25 mg/mL

V2 =?

C1V1 = C2V2

2 x 10 = 25 x V2

V2 = 20/ 25

V2 = 0.8mL

The protein solution needed is 0.8mL and the water needed 1000mL