iii) What type of bond is formed between above compound and ammonia?
(iv) Draw the electron dot-cross structure of that compound formed.
3.If it takes 1 minute form 50 cm3 of oxygen to diffuse through a pin hole, how long will it take
for the same volume of hydrogen to diffuse through the same hole? (O=16, H=1)
4.The volume of a certain mass of gas collected over water is 227 cm3 at 12℃ and 762mmHg.
Vapour pressure of water at 12℃ is 10.5 mmHg. What would be the volume of the dry gas
at 15℃ and 757 mmHg.
5.6g of a mixture of calcium carbonate and sand are treated with an excess of dilute
hydrochloric acid, and 0.924 g of carbon dioxide is produce. What are the percentages of
calcium carbonate and sand in the original mixture.(Na =23,C = 12, O = 16)
