How many moles of potassium hydroxide (KOH) are dissolved in 250 mL of a 0.15-M KOH solution?

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Molarity or M is a unit of concentration and is the ratio of number of moles to the volume of the solution (in liters). 

That is, molarity = number of moles / volume of solution

Here, the volume of solution is given as 250 ml. There...

(The entire section contains 120 words.)

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