Chemistry
A gas cylinder of capacity 40 dm3 is filled with gas X the mass of which is 20 g. When the same cylinder is filled with hydrogen gas at the same temperature and pressure the mass of hydrogen is 2 g. Find the relative molecular mass of the gas.
Related Questions
(a) State wether the following statements are TRUE or FALSE. Justify your answer.
In an electrovalent compound, the cation attains the electronic configuration of the noble gas that comes after it in the periodic table.
In the formation of a compound PQ2, atom P gives one electron to each atom of Q. The compound PQ2 is a good conductor of electricity.
(b) Calculate the number of moles in 22 grams of carbon dioxide.
The following questions relate to the extraction of Aluminium by electrolysis.
(a) Name the other aluminum containing compound added to alumina.
(b) Give a balanced equation for the reaction that takes place at the cathode.
Give balanced equations for each of the following:
(a) Action of warm water on Aluminium nitride.
(b) Oxidation of carbon with conc. Nitric acid.
(c) Dehydration of ethanol by conc. Sulphuric acid at a temperature of 170°C.
With respect to Haber’s process answer the following:
(a) Temperature of the reaction
(b) Catalyst used
(c) Balanced equation for the reaction occurring