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...
Calcium trioxonitrate V salt is a white deliquescent tetrahydrate crystal, Ca(NO 3 ) 2 . 4H 2 O. it is very soluble in water. In the qualitative analysis of calcium trioxonitrate V, the ions present are calcium ion and trioxonitrate V radical. So, the basic methods of identifying these ions in their compounds are employed. How to identify Calcium ion in an unknown compound or solution Calcium ion can be identified by its action or reaction with · Aqueous ammonia · Sodium hydroxide · Ammonium ethanedioate · Ammonium trioxocarbonate IV Test with aqueous ammonia Calcium does not show any visible reaction with aqueous ammonia both in drops of aqueous ammonia and in excess of the aqueous solution. Test with Sodium hydroxide If an unknown solution contain calcium ion, it will form white precipitat...