What does it mean when say that a 200-ml sample and a 400-ml sample of a solution of salt have the same
molarity? In what ways are the two samples identical? In what ways are these two samples different?

Molarity is a unit used to measure the [tex]\frac{solute}{solution}[/tex] ratio per unit volume of the solution. So, in other words, and in our case, we call it the [tex]\frac{moles~of~salt}{per~ml~of~solution}[/tex] ratio.

So, the amount of solute (moles of salt) per ml of solution will be the same, but the number of moles in each solution will be obviously different.

Hope it helped,

BiologiaMagister

What does it mean when say that a 200-ml sample and a 400-ml sample of a solution of salt have the same molarity? In what ways are the two samples identical? In what ways are these two samples different?

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What does it mean when say that a 200-ml sample and a 400-ml sample of a solution of salt have the same
molarity? In what ways are the two samples identical? In what ways are these two samples different?