Chemistry, 31.08.2019 14:30 timothycarter342
State and explain what is observed when hydrogen sulphur is bubbled through acidified tetraoxomanganate (vii) solution
Answers: 1
Chemistry, 21.06.2019 22:30
Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know
Answers: 2
Chemistry, 22.06.2019 05:00
What forms when chemical reactions combine pollution with sunlight?
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 12:40
In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false
Answers: 2
State and explain what is observed when hydrogen sulphur is bubbled through acidified tetraoxomangan...
Physics, 03.12.2019 00:31
English, 03.12.2019 00:31
World Languages, 03.12.2019 00:31
Mathematics, 03.12.2019 00:31
Biology, 03.12.2019 00:31