Chemistry, 26.01.2021 01:00 jobucks9976
A compound is made of 6.00 grams of oxygen, 7.00 grams of nitrogen, and 20.00grams of hydrogen. Find the percent composition of the compound.
A O-18.18%, N-21.21%, H-60.60%
B O-11.18%, N-22.21%, H-69.60%
C O-20%, N-30%, H-50%
D O-60.60%, N-21.21%, H-18.18%
Answers: 2
Chemistry, 22.06.2019 01:30
The table lists pressure and volume values for a particular gas. which is the best estimate for the value of v at p = 7.0 × 103 pascals?
Answers: 3
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 09:00
This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
Answers: 1
A compound is made of 6.00 grams of oxygen, 7.00 grams of nitrogen, and 20.00grams of hydrogen. Find...
History, 04.10.2019 19:20
Computers and Technology, 04.10.2019 19:20
English, 04.10.2019 19:20
Mathematics, 04.10.2019 19:20
Mathematics, 04.10.2019 19:20
History, 04.10.2019 19:20
Mathematics, 04.10.2019 19:20
Mathematics, 04.10.2019 19:20
Mathematics, 04.10.2019 19:20
Mathematics, 04.10.2019 19:20
Mathematics, 04.10.2019 19:20
Mathematics, 04.10.2019 19:20
Mathematics, 04.10.2019 19:20
Social Studies, 04.10.2019 19:20