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 05:40
Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3
Answers: 3
Chemistry, 22.06.2019 09:00
Which two scientific disciplines are bridged by pharmaceutical drugs? chemistry and forensics chemistry and medicine biology and forensics biology and criminology
Answers: 3
State in which a substance has definite shape and a definite volume...
Computers and Technology, 26.08.2019 15:30
English, 26.08.2019 15:30
Computers and Technology, 26.08.2019 15:30
Mathematics, 26.08.2019 15:30
Mathematics, 26.08.2019 15:30
Mathematics, 26.08.2019 15:30
English, 26.08.2019 15:30
Computers and Technology, 26.08.2019 15:30
English, 26.08.2019 15:30
Biology, 26.08.2019 15:30