Question

How much of a 5.0 m sucrose solution should you use to make 85.0 ml of a 0.040 m solution?

Answer 1

Use the dilution formula. M1V1= M2V2.

(0.040)(85.0)= (5.0) V2

V2= 0.68 ml

Answer 2

Answer: The volume of concentrated sucrose solution required is 0.68 mL

Step-by-step explanation:

To calculate the volume of concentrated solution, we use the equation:

`M_1V_1=M_2V_2`

where,

`M_1\text{ and }V_1` are the molarity and volume of the concentrated sucrose solution

`M_2\text{ and }V_2` are the molarity and volume of diluted sucrose solution

We are given:

`M_1=5.0M\\V_1=?mL\\M_2=0.040M\\V_2=85.0mL`

Putting values in above equation, we get:

`5.0* V_1=0.040* 85.0\\\\V_1=(0.040* 85.0)/(5.0)=0.68mL`

Hence, the volume of concentrated sucrose solution required is 0.68 mL