An acid solution was prepared by dissolving 0.767dm3 of hydrogen chloride gas in water at STP to make 0.25dm3 of solution.18cm3 of this solution were enough to neutralize 25cm3 containing 9.864g of the compound YHCO3 per liter of solution. Determine (i)Concentration of the base in g/dm3
(ii)Atomic mass of Y.
(iii)Write the correct formula of the base.

The lattice enthalpy (formation of ionic solid from ions in the gas phase) for agcl(s) is -916 kj/mol and the hydration enthalpy (dissolution of gaseous ions into water) is -850 kj/mol. how much heat (in joules) is involved in forming 1l of saturated agcl solution (1.8 × 10-4 g / 100 ml water) by dissolving agcl(s)? assume solution volume does not change much upon dissolution. the equations are given below. ag+(g) + cl−(g) æ agcl(s)