Ijmb Model Questions Vol1 2018 Chemistry Question 5

Practice essay / theory question 5 from the 2018 Ijmb Model Questions Vol1 Chemistry examination. This question covers Stoichiometry .

Ijmb Model Questions Vol1 2018 Chemistry Essay / Theory

Topic: Stoichiometry

Question 5 IJMB_MODEL_QUESTIONS_VOL1 • 2018 • CHEMISTRY • essay

The reaction between aluminium metal and chlorine gas is represented by: 2 Al + 3 Cl₂ → 2 AlCl₃. A student carries out the reaction using 15.0 g of Al in excess Cl₂ and obtains 28.0 g of aluminium chloride (AlCl₃).

Question Parts

( a )

Calculate the theoretical mass of AlCl₃ that could be formed from the given amount of aluminium.

( b )

Determine the percent yield of the reaction based on the actual mass obtained.

( c )

If a chemist wishes to obtain 20.0 g of AlCl₃ and expects an overall yield of 85 %, calculate the minimum mass of aluminium that must be weighed out.

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About This Question

This is Ijmb Model Questions Vol1 2018 Chemistry Question 5. It is one of the essay questions from the 2018 Ijmb Model Questions Vol1 Chemistry examination.

The question covers Stoichiometry .

View More Ijmb Model Questions Vol1 2018 Chemistry Questions More Ijmb Model Questions Vol1 Practice Questions Back to Questions

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