Question

A chemist dilutes a 1.0 mL sample of 2.0 M KNO3 by adding water to it. If the concentration of the solution that is obtained is 0.0080 M, what is its volume? Use M subscript i V subscript i equals M subscript f V subscript f..

Answer 1

B)- 250ml

Step-by-step explanation:

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Answer 2

The answer to your question is Volume = 250 ml

Step-by-step explanation:

Data

Volume 1 = 1 ml

[KNO₃] = 2 M

Volume 2 = ?

[KNO₃] = 0.0080 M

Process

To solve this problem use the dilution formula.

Concentration 1 x Volume 1 = Concentration 2 x Volume 2

-Solve for Volume 2

Volume 2 = Concentration 1 x Volume 1 / Concentration 2

-Substitution

Volume 2 = (2)(1) / 0.0080

-Simplification

Volume 2 = 2 / 0.0080

-Result

Volume 2 = 250 ml