Chemistry, 01.04.2021 21:20 officialrogerfp3gf2s
Change the following sentence into a chemical equation: "3 mole of aqueous
Ca(OH)2 reacts with 2 moles of aqueous Al(NO3)3 to produce 2 mole of solid Al(OH)3
and 3 moles of aqueous Ca(NO3)2. Identify the reactants and products of the
reaction.
Answers: 2
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 06:00
In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit
Answers: 2
Chemistry, 22.06.2019 19:30
Phosphorous can form an ion called phosphide, which has the formula p3β. this ion can form an ion called phosphide, which has the formula p3β. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons
Answers: 2
Chemistry, 22.06.2019 20:00
Iam hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?
Answers: 1
Change the following sentence into a chemical equation: "3 mole of aqueous
Ca(OH)2 reacts with 2 mo...
Social Studies, 12.07.2019 09:30
Mathematics, 12.07.2019 09:30
History, 12.07.2019 09:30
English, 12.07.2019 09:30
Social Studies, 12.07.2019 09:30
Mathematics, 12.07.2019 09:30
Social Studies, 12.07.2019 09:30
Health, 12.07.2019 09:30
Mathematics, 12.07.2019 09:30
Biology, 12.07.2019 09:30
Business, 12.07.2019 09:30
Business, 12.07.2019 09:30
Computers and Technology, 12.07.2019 09:30
Social Studies, 12.07.2019 09:30
Biology, 12.07.2019 09:30