UNIPORT Chemistry 2016/2017 Model 2 Past Questions

An emulsion may be produced by shaking a detergent solution with

Which of the following methods can be used to obtain pure water from a mixture of sand, water and methanoic acid?

An increase in entropy can best be illustrated by

0.05mol dm³ is neutralized by 25cm³ NaOH. If the volume of acid used is 32.00cm³, what is the concentration of the base?

Alkanals can be distinguished from alkanones by the reaction with

Three drops of a 1.0 ml dm^-3 solution of HCl was added to 20cm³ of a solution of pH 6.4. The pH of the resulting solution will be

The minimum amount of energy required for a reaction to take place is

An organic compound contains 60% carbon, 13.3% hydrogen and 26.7% oxygen. Calculate the en' pirical formula

The major product formed by the reaction between ethanoic acid and aqueous sodium hydroxide is

Reduction is the process of