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Titration of Sodium Hydroxide With Hydrochloric Acid Report Sheet

This document summarizes the titration of sodium hydroxide with hydrochloric acid. It shows the student titrating an HCl solution of unknown molarity against a primary standard Na2CO3 solution to determine the molarity of HCl. Then, the student uses the standardized HCl solution to titrate an unknown molarity NaOH solution. The student records the initial and final burette readings, balanced equations, color changes at the endpoints, and shows the calculations to determine the molarities of the HCl and NaOH solutions.

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Aina'a Tammouni
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56 views2 pages

Titration of Sodium Hydroxide With Hydrochloric Acid Report Sheet

This document summarizes the titration of sodium hydroxide with hydrochloric acid. It shows the student titrating an HCl solution of unknown molarity against a primary standard Na2CO3 solution to determine the molarity of HCl. Then, the student uses the standardized HCl solution to titrate an unknown molarity NaOH solution. The student records the initial and final burette readings, balanced equations, color changes at the endpoints, and shows the calculations to determine the molarities of the HCl and NaOH solutions.

Uploaded by

Aina'a Tammouni
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Titration of Sodium Hydroxide with Hydrochloric acid

Report Sheet

Student name: Aina’a Adeeb Tammouni Section number: 14

A. Write down the correct scientific name and chemical formula of reagents that have been used: (3 points)

Scientific name Chemical formula

Hydrochloric acid HCl

Sodium carbonate Na2CO3

Sodiom hydroxide NaOH

B. Data and results:


Part One: Standardization of HCl solution with the primary Na2CO3 solution

initial reading = 1 ml
Volume of the titrant (HCl) needed to reach the final reading = 12.6 ml (3 points)
endpoint end point = 11.6 ml

1. Write down a balanced chemical equation (0.5 point)


2HCl + Na2Ca H2O + CO2 + 2NaCl

2. State the change in color at the endpoint (0.5 point)


Orange yellow

3. Calculate the molarity of HCl solution (Show your calculations is details) (2 points)

# mol HCl = # mol Na2CO3

M HCl × 11.6 = 0.1 × 10 × 2

Concentration of HCl 0.17 M


Part two: Standardization of unknown NaOH with the secondary standard HCl solution

Unknown number -------------------

initial reading = 0 ml
Volume of the titrant (HCl) needed to reach the final reading = 5.7 ml (3 points)
endpoint end point = 5.7 ml

1. Write down a balanced chemical equation (0.5 point)

HCl + NaOH H2O + NaCl

2. State the change in color at the endpoint (0.5 point)


Pink colorless

3. Calculate the molarity of NaOH solution (Show your calculations is details) (2 points)

# mol HCl = # mol NaOH

0.17 × 5.7 = M NaOH × 10

Concentration of NaOH 0.097 M

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