Answer Happy

Question 1
Acid spills are often neutralized with sodium carbonate or
sodium hydrogen carbonate. For the neutralization of acetic acid,
the unbalanced equations are given below:
1. CH3CO2H (l) + Na2CO3 (s) → CH3CO2Na (aq) + CO2 (g) + H2O
(l)
2. CH3CO2H (l) + NaHCO3 (s) → CH3CO2Na (aq) + CO2 (g) + H2O
(l)
1.1 Balance both reactions by writing the
stoichiometric coefficients in the spaces before each compound. If
the stoichiometric coefficient is one (1), please write a 1 in the
space provided
1.2 How many kilograms of each alkaline
substance is needed to neutralize a 1000 litre spill of pure acetic
acid (density of acetic acid = 1.049 g/mL)? Show all your
calculations.
(Given: MCH3COOH = 60.04 g.mol-1 ; MNa2CO3 = 106 g.mol-1 ;
MNaHCO3 = 84.01 g.mol-1 ; MH2O = 18.02 g.mol-1 ; MCO2 = 44 g.mol-1
))
1.2.1 For Na2CO3
1.2.2 For NaHCO3
1.3 Calculate ΔHo (in kJ) for each
reaction and indicate whether each reaction is exothermic or
endothermic by nature. Find the rest of the standard enthalpies of
formation, (ΔH0 f ) that you will need yourself in the
literature.
(Given: ΔH0 f for CH3CO2Na(aq) = - 726.1 kJ/mol)
CH:CO2H (0) + Na2CO3 (s) ___CH:CO Na (aq) + CO2 (g) + H2O () CH3COCH (0) + NaHCO3(s) → _CH:CO2Na (aq) + CO2 (g) + H20 (0)