A 11.38 g sample of a weak acid (HA) is dissolved in 535.0 g of water. The freezing point of the solution is −0.368 °C . The molar mass of the weak acid is 93.0 g/mol. Calculate the acid dissociation constant, a , of the weak acid.

93.2 ml + 3920 ml = 4013 ml total  

(93.2 ml) * (2.03 m) / (4013 ml) = 0.0471 m

the volume in in l of the diluted solution would be 0.0471 m.

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

i think it's letter a.