Neco Model Questions Vol1 2020 Chemistry Question 3

Practice practical question 3 from the 2020 Neco Model Questions Vol1 Chemistry examination. This question covers Chemical Bonding .

Neco Model Questions Vol1 2020 Chemistry Practical

Topic: Chemical Bonding

Question 3 NECO_MODEL_QUESTIONS_VOL1 • 2020 • CHEMISTRY • practical

A 0.500 g sample of an unknown metal chloride is dissolved in distilled water. Excess aqueous silver nitrate solution is added, causing the chloride ions to precipitate as silver chloride. The precipitate is filtered, washed, dried and weighed. The mass of the dried AgCl precipitate is 0.345 g. The molar mass of AgCl is 143.32 g·mol⁻¹ and the atomic mass of chlorine is 35.45 g·mol⁻¹.

Question Parts

( a )

Calculate the mass of chloride ion present in the original sample.

( b )

Determine the empirical formula of the metal chloride.

( c )

State the type of chemical bond present in the compound and justify your answer based on the experimental findings.

( d )

Suggest two practical precautions that should be observed to minimise error in the precipitation method used above.

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About This Question

This is Neco Model Questions Vol1 2020 Chemistry Question 3. It is one of the practical questions from the 2020 Neco Model Questions Vol1 Chemistry examination.

The question covers Chemical Bonding .

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