Which part of scientific inquiry was not used in the case study
A draw conclusions
B Make ob...
Chemistry, 07.10.2021 22:40 gabbypittman20
Which part of scientific inquiry was not used in the case study
A draw conclusions
B Make observations
C hypothesize and predict
D make a computer model
Answers: 2
Chemistry, 22.06.2019 01:30
100 points answer quick the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.
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 10:10
What shape would a molecule with two bound groups and two lone pairs have?
Answers: 1
Mathematics, 10.09.2021 23:20
Computers and Technology, 10.09.2021 23:20
Mathematics, 10.09.2021 23:20
Mathematics, 10.09.2021 23:20
Chemistry, 10.09.2021 23:20
Mathematics, 10.09.2021 23:20