A.With examples explain the following:
(i) Co-ordinate covalent bond.(2 mrks)
(ii) Hydrogen bonding.(2 mrks)
(iii) Resonance.(2 mrks)
(iv)Electronegativity (2 mrks)
(v)Intermolecular force.(2 mrks)
(b) Write Lewis structures for the following species showing your working;
(i) SCN-( 2 mrks)
(ii)CO( 2 mrks)
(iii)PCl5(2 mrks)
(C)List the intermolecular forces that you will expect between the following species\
(i)H2O molecules(2 mrks)
(ii)Br2 molecules(2 mrks)
(iii) HCl and H2O(2 mrks)
(iv) H2O and Cl-( 2mrks)
(D) A 25 ml sample of 1.00 MKBr and a 75 ml sample of 0.8 MKBr are mixed. The solution is the heated to evaporate water until the solution volume is 50 ml. Calculate the molarity of the final solution(3 mrks)
(i) What mass of NaCl is required to precipitate all the silver ions from 20 ml of 0.1NagNO3 solution?(3 mrks)
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