Question

If water is added to 175 ml of a .45 m koh until the volume is 250 ml , what will the molarity of the diluted solution be

Answer 1

Answer:

0.32 M

Explanation:

See the picture for work. There is an equation for molarity and volumes that you can use and solve for the second molarity. Double check the significant figures. I used the ones in your question.

Answer 2

The molarity of the diluted solution is 0.315 M

The experiment given in the question talks about dilution.

Dilution is simply reducing the concentration of a substance by the application of water.

The concentration of the diluted solution can be obtained as illustrated below:

From the question given above, the following data were:

Data obtained from the question

Molarity of stock solution (M₁) = 0.45 M

Volume of stock solution (V₁) = 175 mL

Volume of diluted solution (V₂) = 250 mL

Molarity of diluted solution (M₂) =?

M₁V₁ = M₂V₂

0.45 × 175 = M₂ × 250

78.75 = M₂ × 250

Divide both side by 250

M₂ = 78.75 / 250

M₂ =  0.315 M

Therefore, the molarity of the diluted solution is 0.315 M

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