A solution of 5 M HCl is already made. You need to dilute the solution to 1 M HCl. The 1 M HCl solution is . a more concentrated b less concentrated c neither d both less and more concentrated

b less concentrated

Explanation:

The molarity of a solution represents the number of moles of solute per volume of the solution. Molarity is one of the ways of measuring the concentration of a solution.

When a solution is diluted, the number of moles of solute in the solution remains the same while the volume of the solution increases. This leads to a lower molarity/concentration.

Hence when a solution is diluted from 5 M to 1 M, it becomes less concentrated.

The correct option is b.

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