A25.00 −ml sample of an unknown hclo4 solution requires titration with 21.52 ml of 0.2000 m naoh to reach the equivalence point. part a what is the concentration of the unknown hclo4 solution? the neutralization reaction is: hclo4(aq)+naoh(aq)→h2o(l)+naclo4(aq )

The concentration of the unknown HClO₄ solution: 0.17216  m

Titration is a procedure for determining the concentration of a solution by reacting with another solution which is known to be concentrated (usually a standard solution). Determination of the endpoint / equivalence point of the reaction can use indicators according to the appropriate pH range

Titrations can be distinguished including acid-base titration, depositional titration, and redox titration. An acid-base titration is the principle of neutralization of acids and bases is used.

An acid-base titration there will be a change in the pH of the solution.

From this pH change a Titration Curve can be made which is a function of acid / base volume and pH of the solution

Acid-base titration formula

Ma, Mb = acid base concentration

Va, Vb = acid base volume

na, nb = acid base valence

Neutralization Reaction:

HClO₄ (aq) + NaOH (aq) → H₂O (l) + NaClO₄ (aq)

21.52 ml of 0.2000 m NaOH

25.00 ml HClO₄ solution

Acid-base titration formula

Ma Va. na = Mb. Vb. nb

a = NaOH, b = HClO₄ (both have valence 1)

0.20 m. 21.52. 1 = Mb. 25 1

the best tool to find the volume of that she needs to neutralize the acid

link

Determine the endpoint of the titration.

link

acid-base

link

Identify the acids and the bases

link

endpoint titration

link

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )