Neco Model Questions Vol1 2018 Chemistry Question 5

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

Neco Model Questions Vol1 2018 Chemistry Essay / Theory

Topic: Stoichiometry

Question 5 NECO_MODEL_QUESTIONS_VOL1 • 2018 • CHEMISTRY • essay

Calcium carbonate reacts with excess hydrochloric acid according to the equation: CaCO3 + 2HCl → CaCl2 + CO2 + H2O.

Question Parts

( a )

If 12.5 g of CaCO3 is used, calculate the theoretical volume of CO2 gas that would be produced at 25 °C and 1.00 atm.

( b )

The actual volume of CO2 collected over water is 260 mL at the same temperature and pressure. The vapour pressure of water at 25 °C is 23.8 mmHg. Calculate the percent yield of CO2.

( c )

The dry CO2 obtained in part (b) is transferred into a sealed 2.00 L container kept at 25 °C. Determine the final pressure in the container after the transfer, assuming ideal behaviour.

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About This Question

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

The question covers Stoichiometry .

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

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