a. In an experiment, 20.0 \(cm^3\) of a solution containing 4g/\(dm^3\) of sodium hydroxide was neutralized by 8.0 \(cm^3\) of dilute tetraoxosulphate (VI) ...

Assessment: WAEC SSCE - Chemistry - 2023 (Essay) Subject: Chemistry

Question 1 Report

a. In an experiment, 20.0 \(cm^3\) of a solution containing 4g/\(dm^3\) of sodium hydroxide was neutralized by 8.0 \(cm^3\) of dilute tetraoxosulphate (VI) acid: i. Write a balanced equation for the reaction;  ii. calculate the concentration of the acid in mol/ \(dm^3\)

bi. State two postulates of the Kinetic theory of gases which real gases do not obey

ii. Explain briefly why real gases do not obey the postulates stated in 2(b)(i).

c. Consider the following compound:

     Name the compoundOpen photo

 ii. name the two structural isomers of the compound; 

 iii. state the chemical process involved in the preparation of the compound from starch,

iv. write the chemical equation for the steps involved in the process in 2(c)(ii).

v. name two enzymes involved in the process in 2(c)(iii)

d. Explain briefly the term structural isomerism.

 

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