Ijmb Model Questions Vol1 2024 Chemistry Question 2

Practice practical question 2 from the 2024 Ijmb Model Questions Vol1 Chemistry examination. This question covers Periodic Table .

Ijmb Model Questions Vol1 2024 Chemistry Practical
Topic: Periodic Table
Question 2 IJMB_MODEL_QUESTIONS_VOL1 • 2024 • CHEMISTRY • practical

A gravimetric analysis was carried out to determine the equivalent weight of an unknown metal M. Procedure summary: 1. A 0.500 g sample of the metal was dissolved in excess hydrochloric acid. 2. The solution was evaporated to dryness and the residue was heated to convert the metal to its chloride, MCl₂·6H₂O. 3. The dried crystals of the hydrate were weighed and gave a mass of 0.845 g. The formula mass of MCl₂·6H₂O is 203.3 g mol⁻¹. Answer the questions below.

Question Parts

( a )
Calculate the equivalent weight of metal M.
( b )
Using the periodic table, propose a possible identity for metal M and give its symbol, atomic number and common oxidation state.
( c )
Discuss two possible sources of error in this experiment and explain how each would affect the calculated equivalent weight.

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This is Ijmb Model Questions Vol1 2024 Chemistry Question 2. It is one of the practical questions from the 2024 Ijmb Model Questions Vol1 Chemistry examination.

The question covers Periodic Table .

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