Chemistry, 11.07.2019 22:00, germaine88
Ionic bonding gcse i thought it was supposed to be the other way around? group 1 and 2 are harder to remove electrons since there are less shells so it’s closer to the nucleus so there’s more attraction and opposite for group 7 and 6?
Answers: 1
Chemistry, 22.06.2019 05:40, Maryjasmine8001
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
Ionic bonding gcse i thought it was supposed to be the other way around? group 1 and 2 are harder...
Chemistry, 07.01.2020 21:31
Mathematics, 07.01.2020 21:31
Mathematics, 07.01.2020 21:31
Chemistry, 07.01.2020 21:31
Mathematics, 07.01.2020 21:31
Mathematics, 07.01.2020 21:31