Answers: 2
Chemistry, 21.06.2019 17:00
An aqueous solution of hydroiodic acid is standardized by titration with a 0.186 m solution of calcium hydroxide. if 26.5 ml of base are required to neutralize 20.3 ml of the acid, what is the molarity of the hydroiodic acid solution? m hydroiodic acid
Answers: 1
Chemistry, 21.06.2019 22:30
Which of these sequences lists the correct order for the creation of sedimentary rock from sediment? a. deposition, burial, compaction, cementation b. burial, deposition, compaction, cementation c. compaction, deposition, burial, cementation d. cementation, deposition, burial, compaction
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 15:10
Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?
Answers: 1
How many calories are required to raise the temperature of 75.0 g of water from 20 derees c to 50 de...
Mathematics, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
English, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
English, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
English, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Social Studies, 17.09.2020 14:01
English, 17.09.2020 14:01
Health, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
English, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01
Mathematics, 17.09.2020 14:01