1Amrita placed 1 kg weights on the bundle of silk thread, cotton thread and wool thread as shown in the figure below. The bundles were placed on the table. The bundles of thread were all of the same size. What can Amrita find out about the bundles of thread from her experiment?

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

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