Answers: 2
Chemistry, 22.06.2019 05:40
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
Answers: 2
Chemistry, 22.06.2019 15:30
Which suspect most likely committed the robbery and how do you know
Answers: 2
Chemistry, 22.06.2019 22:00
The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.
Answers: 2
What determines the volume of a gas?...
Computers and Technology, 30.03.2021 06:10
Mathematics, 30.03.2021 06:10
Mathematics, 30.03.2021 06:10
Mathematics, 30.03.2021 06:10
Mathematics, 30.03.2021 06:10
Social Studies, 30.03.2021 06:10
Physics, 30.03.2021 06:10
Mathematics, 30.03.2021 06:10
Mathematics, 30.03.2021 06:20
Mathematics, 30.03.2021 06:20
English, 30.03.2021 06:20