The vibration of which bond gives an ir absorption that distinguishes between the following two compounds? ch3 ch2 ch2 oh ch3 ch2 och3 what is the approximate wavenumber (cm-1) of that band? select answer 1050 1250 1450 1700 3500

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

Which type of intermolecular attractions holds ammonia molecules together with other ammonia molecules?

In in , is to a 28.4-g (1-oz)−23.0 °c to −1.0 °c?