Answers: 1
Chemistry, 22.06.2019 05:40
Why did southern business leaders want to increase the number of slaves
Answers: 1
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 11:00
An object becomes electrically charged when: electrons are created in it electrons from it are destroyed electrons are transferred to it protons from it are destroyed protons are created in it
Answers: 1
What happens to the mass of substances during a chemical change?...
Computers and Technology, 08.10.2019 19:00
Mathematics, 08.10.2019 19:00
Physics, 08.10.2019 19:00
Health, 08.10.2019 19:00
Geography, 08.10.2019 19:00
Health, 08.10.2019 19:00
English, 08.10.2019 19:00
Mathematics, 08.10.2019 19:00
English, 08.10.2019 19:00
English, 08.10.2019 19:00