Chemistry Past Questions and Answers

Pure sulphuric acid is a liquid of 1:84 density. What volume of it would be required to prepare 250 cm<sup style='font-size: smaller;'>3</sup> of 2.0 M solution?<br/>(H = 1, S = 32, O = 16)

What mass of sodium carbonate solution is in 500 cm<sup style='font-size: smaller;'>3</sup> of 0.1 molar sodium carbonate solution?<br/>(Na = 23, C = 12, O = 16)

Which of the following compounds and elements would sublime on exposure to the atmosphere?

When hydrogen sulphide and sulphur dioxide are each passed in turn into a solution of potassium dichromate?

Which one of the following metals is not normally extracted by chemical reduction because of its position in the electrochemical series?