A solution of a metal carbonate, M2CO3, was prepared by dissolving 7.46 g of the anhydrous solid in water to give
of solution. 25.0 cm3
of this solution reacted with 27.0 cm3
of 0.100 mol dm-3 hydrochloric acid.
Calculate the relative formula mass of M2CO3 and hence the relative atomic mass of the metal M.