The standard enthalpy of combustion of acetic acid, carbon and hydrogen is -867, -393.5 and -285.9 KJ`mol^(-1) respectively Calculate the enthalpy of formation of acetic acid.

The bond enthalpis of H-H, Br-Br and H-Br are 433, 192 and 364kJ/mol respectively. Calculate the enthalpy of the reaction H_2(g) + Br_2(g) rarr 2HBr (g

The limiting molar conductances of sodium chloride, hydrochloric acid and sodium acetate are 126.45, 426.16 and 91.0 Scm^2mol^-1 respectively at 298K. Calculate the limiting molar conductance of acetic acid at 298K.

The molar conductances of NaCl, HCl and CH_3COONa at infinite dilution are 126.45, 426.16 and 91.0 Scm^2 mol^-1 , respectively at 25^@C , Calculate the moalr conductance of acetic acid at infinite dilution.

The standard enthalpy of formation of ammonia is -42.19 kJ. Calculate the heat of the following reaction at constant volume. N_2(g) + 3H_2(g) rarr 2NH_3(g)

On dissolving 19.5g CH_2F COOH in 500g of water, a depression of 1^@C in freezing point of water is observed. Calculate the vant Hoff factor and dissociation constant of Fluoroacetic acid. (Given, K_f = 1.86 K kg mol^-1)

The conductivity of 0.001M acetic acid is 4X10^(-2)S//m . Calculate the dissociation constant of acetic acid if lambda_m^@ for acetic acid is 390Scm^2mol^(-1) .

Conductivity of 0.00241 M acetic acid is 7.896xx10^-5 S cm^-1 .Calculate its molar conductivity and what is its dissociation constant?

Conductivity of 2.5xx10^(-4)M methanoic acid is 5.25xx10^(-5)Scm^(-1) . Calculate its molar conductivity and degree of dissociation (Given lambda^@(H^+)=349.5Scm^2mol^(-1) and lambda^@(HCOO)=50.5 Scm^2mol^(-1) )

Calculate the mass of ascorbic acid (Vitamin C, C_6H_8O_6) to be dissolved in 75g of acetic acid to lower its melting point by 1.5^@C . K_f = 3.9 K kg mol^-1