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pantera1 [17]
3 years ago
11

Which of these would most likely be one of the final steps when performing a strong acid-base titration? Prepare the burette. Re

cord the initial burette volume. Prepare to measure pH change. Observe any changes as base is added.
Chemistry
2 answers:
DanielleElmas [232]3 years ago
8 0

Answer is: Prepare to measure pH change.

For example for strong acid-base titration, sodium hydoxide and hydrochloric can be used.

Balanced chemical reaction: HCl + NaOH → NaCl + H₂O.

In this reaction pH of equivalence point will be always 7.

Equivalence point is the point which there is stoichiometrically equivalent amounts of acid and base.  

Chemist can draw pH curve (graph showing the change in pH of a solution, which is being titrated) for titration and determine equivalence point.  

Near equivalence point indicator should change color, so we must pick indicator who change color near pH of equivalence point.

anzhelika [568]3 years ago
5 0

Answer: C on edg

Explanation:

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The answer for the following question is mentioned below.

<u><em>Therefore no of moles present in the gas are 1.12 moles</em></u>

Explanation:

Given:

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To calculate:

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We know;

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We know;

<u>P × V = n × R × T </u>

where,

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T represents the temperature of the gas

As we have to calculate the no of moles of the gas;

n = \frac{P*V}{R*T}

n = \frac{1.2*50.0}{0.0821*650}

n = \frac{60}{53.365}

n = 1.12 moles

<u><em>Therefore no of moles present in the gas are 1.12 moles</em></u>

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HEY THERE!!

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