Gay Lussac’s of combining volumes states that gases react in simple ratio with one another and to volumes of the products provided that temperature and pressure remain constant. In this article, you will understand how to apply this law in calculation by studying the following examples below: 1. 2H 2 + O 2 → H 2 O In the reaction above, what volume of hydrogen would be left over when 300cm 3 of oxygen and hydrogen are exploded in a sealed tube? 1cm 3 of oxygen = 2cm 3 of hydrogen 300cm 3 of oxygen = 2 x 300 = 600cm 3 Volume of left over = 1000 – 600 = 400cm 3 2. Calculate the volume of carbon (II) oxide required to react with 40cm 3 of oxygen. 2CO + O 2 → 2CO 2 1cm 3 of oxygen = 2cm 3 of CO 40cm 3 of oxygen = 2 x 40 = 80cm 3 3. Calculate the volume of residual gases that would be produced when 100cm 3 of sulphur (IV) oxide reacts with 20cm 3 of oxygen 2SO 2 + O 2 → 2SO 3...
How to Analyse the Ions in a Mixture of Copper II tetraoxosulphate VI and Ammonium trioxocarbonate IV
Copper sulphate(copper II tetraoxosulphate VI) is one of the soluble compounds of copper, it is a blue crystal solid with five molecules of water of crystallization. It can lose its water of crystallization on strong heating to form anhydrous salt which is white in colour. For more detailed information on the analysis of copper sulphate, click Here. Ammonium carbonate (ammonium trioxocarbonate IV) is a white crystal solid and it is very soluble in water, Click here for more information. A mixture of ammonium Carbonate and copper sulphate will undergo double decomposition to give ammonium sulphate and copper carbonate. Double decomposition is a type of reaction in which two soluble compounds react by the exchange of radicals to form one soluble compound and one insoluble compound. CuSO 4 + (NH 4 ) 2 CO 3 ------- CuCO 3 + (NH 4 ) 2 SO 4 Copper carbonate is a green powder and insoluble while ammonium sulphate is a whit...