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A solution is prepared by dissolving 17.0 g of KOH in enough water to make 80.0...

A solution is prepared by dissolving 17.0 g of KOH in enough water to make 80.0 mL of solution. What is the molarity of this solution?

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Expert Solution

Data given: Wegiht of KOH = 17 grams

                 Volume of solution = 80 ml = 80*10-3 Litre

Molar mass of KOH= 56 grams/moles

Molarity if given by ,

Molarity = number of gram moles / Volume of solution ( in Litre)

Let us now calculate number of moles,

Moles of KOH = Weight of KOH =17/56 = 0.30357 moles

Substituting all the known values in molarity equation

Molarity (M) = 0.30357 / (80*10-3) = 3.7946 M

Hence, Molarity of 80 ml KOH solution is 3.7946 M

              

queen_honey_blossom answered 2 years ago
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