What is the change in enthalpy of the following reaction? 2NaBr(aq) + PbCl2(aq) → 2NaCl(aq) + PbBr2(aq)
Given:
NaCl: AH = -411 kj
NaBr: AH = -360 kj
PbCl2 AH = -359 kj
PbBr2: AH = -277 kJ

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)