Chemistry, 25.11.2021 14:00 choiboiqg6811
A container with a pinhole leak contains a mixture of helium, nitrogen, oxygen, and fluorine. Which element leaks the slowest from the container
Answers: 3
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, 23.06.2019 05:20
Explain how global warming could have affected yellowstone frog and salamander habitat's, resulting in changes in the populations of these species
Answers: 2
Chemistry, 23.06.2019 11:20
Which of the following is a pure substance? airbloodcopperwood
Answers: 2
Chemistry, 23.06.2019 12:50
What is the relative mass of an electron? a) 1/1840 the mass of a neutron + proton b) 1/1840 the mass of an alpha particle c) 1/1840 the mass of a c-12 atom d) 1/1840 the mass of a hydrogen atom
Answers: 3
A container with a pinhole leak contains a mixture of helium, nitrogen, oxygen, and fluorine. Which...
Chemistry, 14.11.2020 20:30
Mathematics, 14.11.2020 20:30
Mathematics, 14.11.2020 20:30
Mathematics, 14.11.2020 20:30
History, 14.11.2020 20:30
Mathematics, 14.11.2020 20:30
Social Studies, 14.11.2020 20:30
Social Studies, 14.11.2020 20:30
History, 14.11.2020 20:30