Waec Model Questions Vol1 2024 Chemistry Question 4

Practice practical question 4 from the 2024 Waec Model Questions Vol1 Chemistry examination. This question covers Mole Concept .

Waec Model Questions Vol1 2024 Chemistry Practical
Topic: Mole Concept
Question 4 WAEC_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • practical

A 0.1000 M solution of sodium hydroxide (NaOH) is used to titrate a sample of hydrochloric acid (HCl) solution. The following data are recorded: - Volume of HCl taken for the titration: 25.00 mL\n- Volume of NaOH required to reach the phenolphthalein endpoint: 31.45 mL\n- Molarity of NaOH: 0.1000 M\nUsing the information above, answer the questions that follow.

Question Parts

( a )
Calculate the number of moles of NaOH used in the titration.
( b )
From the stoichiometry of the reaction, determine the number of moles of HCl present in the 25.00 mL sample.
( c )
Calculate the concentration (M) of the HCl solution.
( d )
How many grams of HCl are present in 100.0 mL of this acid solution?
( e )
State two possible sources of error in this titration and briefly explain how each would affect the calculated concentration of HCl.

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About This Question

This is Waec Model Questions Vol1 2024 Chemistry Question 4. It is one of the practical questions from the 2024 Waec Model Questions Vol1 Chemistry examination.

The question covers Mole Concept .

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