The greatest amount of energy released per gram of reactants occurs during a(1) redox reaction
...
Answers: 1
Chemistry, 22.06.2019 05:30
A3.37-mg sample of protein was chemically digested to convert its nitrogen into ammonia and then diluted to 100.0 ml. then 10.0 ml of this solution was placed in a 50-ml volumetric flask and treated with 5 ml of phenol solution plus 2 ml of sodium hypochlorite solution. the sample was diluted to 50.0 ml, and the absorbance at 625 nm was measured in a 1.00-cm cuvette and found to be 0.486. for reference, a standard solution was prepared from 10.0 mg of nh4cl (molar mass = 53.49 grams/mole) dissolved in 1.00 l of water. then 10.0 ml of this standard was placed in a 50-ml volumetric flask, treated in the same manner as the unknown, and the absorbance found to be 0.323. finally, a reagent blank was prepared using distilled water in place of unknown, it was treated in the same manner as the unknown, and the absorbance found to be 0.076. calculate the weight percent of nitrogen in the protein.
Answers: 1
Chemistry, 22.06.2019 13:30
The atomic number, or number, is the described as the number of in the nucleus of an chemical element.
Answers: 1
Chemistry, 22.06.2019 18:40
What is one real world example of a colligative property?
Answers: 2
Chemistry, 22.06.2019 20:00
Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.
Answers: 1
Computers and Technology, 26.09.2021 15:00
Chemistry, 26.09.2021 15:00
History, 26.09.2021 15:00
English, 26.09.2021 15:00
Mathematics, 26.09.2021 15:00
Computers and Technology, 26.09.2021 15:00
Mathematics, 26.09.2021 15:00
Mathematics, 26.09.2021 15:00
Mathematics, 26.09.2021 15:00
Health, 26.09.2021 15:00
Computers and Technology, 26.09.2021 15:00