Calcium trioxocarbonate (IV) reacts with trioxonitrate (V) acid according to the equation below; CaCO3 + 2HNO3 → Ca(NO3)2 + H2O + CO2 If 20g of the trioxocarbonate (V) reacted completely with the acid, calculate the number of moles of the moles of the trioxonitrate (V) acid that reacted [ C =12 , O = 16, Ca =40] (b) Consider the volume of HCl gas that can be obtained at stp from 5.85g of sodium chloride[ H =1 , Na = 23, Cl =35.5]

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)