What is the molarity of a solution made by mixing 2.80 g of koh with enough water make 750 ml of solution?

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09-11-2016
Chemistry

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What is the molarity of a solution made by mixing 2.80 g of koh with enough water make 750 ml of solution?

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MissPhiladelphia MissPhiladelphia · Answer 1 · 2016-11-23T10:48:29+01:00

MissPhiladelphia MissPhiladelphia

23-11-2016

Molarity is expressed as the number of moles of solute per volume of the solution. We calculate as follows:

2.80 g ( 1 mol / 56.11 g ) = 0.05 mol KOH

Molarity = 0.05 mol KOH / 750 mL ( 1 L / 1000 mL )
Molarity = 0.07 M

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