Chemistry, 08.04.2021 07:20 talanna394
3. Calculate the average atomic mass of sulfur if 95.00% of all sulfur atoms have
a mass of 31.972 amu, 0.76% has a mass of 32.971u and 4.22% have a mass of
33.967u.
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, 23.06.2019 01:30
Which is an example of a highly unstable isotope that is often used in fission reactions?
Answers: 1
Chemistry, 23.06.2019 05:00
Question 5 match each term to its description. match term definition excess reactant a) reactant that can produce a lesser amount of the product limiting reactant b) reactant that can produce more of the product theoretical yield c) amount of product predicted to be produced by the given reactants
Answers: 2
3. Calculate the average atomic mass of sulfur if 95.00% of all sulfur atoms have
a mass of 31.972...
Mathematics, 04.05.2021 03:20
Advanced Placement (AP), 04.05.2021 03:20
Mathematics, 04.05.2021 03:20
Mathematics, 04.05.2021 03:20
Mathematics, 04.05.2021 03:30
Mathematics, 04.05.2021 03:30
Computers and Technology, 04.05.2021 03:30
Mathematics, 04.05.2021 03:30
Mathematics, 04.05.2021 03:30
Mathematics, 04.05.2021 03:30