20. An aqueous solution of nitric acid is standardized by titration with a 0.162 M solution...

20. An aqueous solution of nitric acid is standardized by titration with a 0.162 M solution of potassium hydroxide. If 27.1 mL of base are required to neutralize 20.7 mL of the acid, what is the molarity of the nitric acid solution? M nitric acid

Expert Solution

KOH(aq) + HNO3(aq) ----------------> KNO3(aq) + H2O(l)

1 mole 1 mole

KOH HNO3

M1 = 0.162M M2 =

V1 = 27.1ml V2 = 20.7ml

n1 = 1 n2 = 1

M1V1/n1 = M2V2/n2

M2 = M1V1n2/n1V2

= 0.162*27.1*1/1*20.7*1 = 0.212M

The molarity of HNO3 is 0.212M

queen_honey_blossom answered 1 year ago

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