melnikovnikita20 melnikovnikita20

19-06-2020
Chemistry

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A 25 milliliter sample of HNO2 (aq) is neutralized by 32.1 milliliters of 0.150 M KOH (aq). What is the concentration of the acid

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RealMadrid77 RealMadrid77

19-06-2020

Answer:

The answer is (3) 0.193M.

Explanation:

To find the molarity of HNO3, you just need to use the M1V1=M2V2 equation (no need to worry about ionization constants because HNO3 is monoprotic and KOH dissociates 1:1). Since the molarity you are looking for is M1, you get M1=M2V2/V1=(0.150)(32.1)/25.0= 0.193M

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