# If 6.5 L of a 0.2 M HCl solution is combined with 3.0 L of a 4.0 M HCl solution, what is the...

## Question:

If 6.5 L of a 0.2 M HCl solution is combined with 3.0 L of a 4.0 M HCl solution, what is the molarity of the final solution?

## Calculating Molarity:

When we mix two samples of aqueous hydrochloric acid, the molarity of the combined solution equals the total number of moles of HCl divided by the total volume of the solution. The number of moles of HCl for the solution equals the product of the concentration and volume of the solution.

## Answer and Explanation: 1

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View this answerThe molarity of the new solution equals the number of moles {eq}n {/eq} of HCl divided by the volume {eq}V {/eq} of the solution.

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Chapter 9 / Lesson 4Learn how to find the molarity of a solution or the moles of gas in a given volume using stoichiometry. See examples of calculating moles from molarity.