When 0.6g of element J were completely burnt in oxygen and all the heat evolved was used to heat 500cm^3 of water, the temperature of the water rose from 23^0C to 32^0C. Calculate the relative atomic mass of element J given that the specific heat capacity of water=4.2KJ^(-1)g^-1, density of water=1.0gcm^-3 and molar
heat of combustion of J is 380Kjmol^-1