Chemistry, 16.07.2019 04:00, nauticatyson9
In the reaction h2so4 + 2 naoh -> na2so4 + 2h2o, an equivalence point occurs when 28.54 ml of 0.2075 m naoh is added to a 34.23 ml portion of h2so4. what is the [h2so4]?
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
Chemistry, 22.06.2019 06:00, tddreviews
Match the name of the following compound: mgso4 · h2omagnesium sulfate monohydratemagnesium (ii) sulfate monohydratemagnesium (ii) sulfate hydratemagnesium sulfate hydrate
Answers: 1
In the reaction h2so4 + 2 naoh -> na2so4 + 2h2o, an equivalence point occurs when 28.54 ml of 0....
Geography, 07.09.2019 05:21
Computers and Technology, 07.09.2019 05:21
Physics, 07.09.2019 05:21