Consider the reaction that converts pyruvic acid (CH3COCOOH) into gaseous acetaldehyde (CH3CHO) and gaseous CO2, which is catalyzed in aqueous solution by the enzyme pyruvate decarboxylase. Assume that gases behave ideally.

a. Calculate ΔrG∘ (298 K) for this reaction.
b. Calculate ΔrG (298 K) for this reaction at 130 bar.
c. State any important assumptions needed in addition to ideal gas behavior.

Check all that apply.

a. CH3COCOOH remains gase at 298 K and 130 bar.
b. CO2 remains gase at 298 K and 130 bar.
c. CH3CHO remains gase at 298 K and 130 bar.
d. None of the above.

Aaspirin has a density of 1.40 g/cm^3 what is the volume in cubic centimeters of a tablet weighing 320 mg?

Salicylic acid is a very important acid. it is used to synthesize the aspirin by treating with acetic anhydride. a 0.2015-g sample of salicylic acid was dissolved in a 100.00-ml volumetric flask, and the solution was diluted to the mark. a 10-ml aliquot of this solution was titrated with standard naoh (0.01130 + 0.2% n) to a phenolphthalein faint pink color end point at 19.81 ml. (a) (calculate the normality of the salicylic acid solution used in the titration. (b) assuming the salicylic acid is pure, what is the equivalent weight of the salicylic acid? practice problems for the final exam (continued) (c) (calculate the inherent error in the determination of the equivalent weight you calculated in part (b). use the following absolute errors in the equipment /glassware when calculating the inherent error. 5.00-ml pipet: + 0.02 ml 100-ml volumetric flask: + 0.08 ml analytical balance: + 0.2 mg 25-ml buret: + 0.03 ml

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added