Chemistry, 20.09.2020 05:01 lnbrown9018
Most energy reaches earth from space as visible light
Answers: 1
Chemistry, 22.06.2019 02:10, kakesheco4210
What approach is required to balance the objectives of sustainable development? balancing the objectives of sustainable development requires a(n) .
Answers: 3
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 07:00, coolkid2041
Calculate the number of moles of ethane in 100 grams
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Chemistry, 22.06.2019 08:30, kkelley9223
How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same
Answers: 2
Most energy reaches earth from space as visible light...
Geography, 12.12.2019 20:31