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18 Dec 2019

A 22.00 −mL sample of an unknown HClO4solution requires titration with 21.62 mL of 0.1900 M NaOH to reach the equivalence point

What is the concentration of the unknown HClO4 solution? The neutralization reaction is:
HClO4(aq)+NaOH(aq)→H2O(l)+NaClO4(aq)

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Irving Heathcote
Irving HeathcoteLv2
31 Dec 2019

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Related questions

It took 32.15 mL of 0.0953 M NaOH to reach the equivalence point of a titration when 25.00 mL of unknown concentration of HCl was titrated. Determine the molarity of the HCl solution.

_HCl(aq) + _NaOH ïƒ _NaCl(aq) + _H2O(l)

A 28.0 mL sample of vinegar, which is an aqueous solution of acetic acid, CH3COOH, requires 24.5 mL of 0.450 M NaOH to reach the endpoint in a titration.

CH3COOH(aq) + NaOH(aq) → CH3COONa(aq) + H2O(l)

What is the molarity of the acetic acid solution?

Two part neutralzation question- thanks in advance and I will always thumbs up if answers are correct!

1. Which of the following is the net ionic equation for the reaction of aqueous nitrous acid being neutralized by aqueous potassium hydroxide?

a.

HNO2(aq) + KOH(aq) -> H2O(l) + KNO2(aq)

b.

HNO2(aq) + OH-(aq) -> H2O(l) + NO2-(aq)

c.

K+(aq) + NO2-(aq) -> KNO2(aq)

D.

H+(aq) + OH-(aq) -> H2O(l)

e.

HNO2(aq) + K+(aq) + OH-(aq) -> H2O(l) + KNO2(aq)

F.

H+(aq) + KOH(aq) -> H2O(l) + K+(aq)

g.

H+(aq) + NO2-(aq) + KOH(aq) -> H2O(l) + KNO2(aq)

2. Which of the following are neutralization reactions? Select all that apply.

a.

HCl + H2O --> H3O+ + Cl-

b.

NaNO2 + H2O --> HNO2 + NaOH

C.

HClO4 + NaOH --> H2O + NaClO4

d.

H+ + OH- --> H2O

E.

None of the above

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