How does the reaction outlined here demonstrate the conservation of mass? The energy stored in the bonds was conserved both before and after the reaction.

The number of atoms before they rearranged is equal to the number of atoms after they rearranged.

The number of molecules both before and after the reaction is constant.

Energy was utilized to transform the arrangement of some atoms to a different arrangement.

Using complete sentences, explain how to predict the products and balance the reaction between sulfuric acid and potassium hydroxide.

What is the value of keq for the reaction expressed in scientific notation

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