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Chemistry, 22.06.2019 05:40
Why did southern business leaders want to increase the number of slaves
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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
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Chemistry, 22.06.2019 18:30
You open a can of soda at room temperature and hear a hiss. which of the following factors has changed inside the container? a.) atmospheric pressure b.) temperature of gas c.) type of gas d.) amount of gas
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Chemistry, 23.06.2019 10:00
How to draw a diagram to represent a calcium metal lattice?
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Mathematics, 02.08.2019 15:30
Mathematics, 02.08.2019 15:30
Social Studies, 02.08.2019 15:30
Business, 02.08.2019 15:30
Social Studies, 02.08.2019 15:30
Social Studies, 02.08.2019 15:30
Chemistry, 02.08.2019 15:30
Chemistry, 02.08.2019 15:30
Social Studies, 02.08.2019 15:30
Social Studies, 02.08.2019 15:30