d) Forms a brick red precipitate when tested with Fehling's solution? e) Forms a yellow precipitate when tested with 2,4-dinitrophenylhydrazine?
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- What phenomenon is observed when the two solid starting materials are blended together? Why does this happen?Tollen's reagent reacts with hexan-2-one to produce hexanoic acid and silver mirror precipitate. True or false?A student reacted 0.500 g of triphenylmethyl bromide and 20.0 mL of water in 10 mL of acetone. The crude product was collected and dissolved in 35 ml of hot isopropanol. The hot solution was transferred immediately to an ice bath, then vacuum filtered. a) 0.024 g of purified solid was collected. What was the percent yield? b) state two specific reasons for the student's low yield based on the described procedure above.
- 1. A compound of molecular formula C5H100 forms a yellow precipitate with reagent and a yellow precipitate with reagents for the iodoform test. 2,4-dinitrophenylhydrazine a) Draw the structural formulae on a piece of paper, take a picture of them and upload the image below. b) Name the two (2) compounds that fit these tests.Determine what could be the best solvent to differentiate anthracene and benzylamine based on their predicted solubility.What the solubility class of 2-chloroaniline
- Which compound of Grp 3 cations is a white, gelatinous precipitate that produces a colored precipitate when in contact with its confirmatory reagent?AP Question // Q 5) Using the graph below, find the slope (and its unit). What letter(s) the Beer's law does the slope represent? 0.500 (0.100, 0.485) 0.400- (0.075, 0.364) 0.300- (0.055, 0.243) 0.200- 0.100- (0.025, 0.125) 0.050 0.100 Concentration (M) AP Question // Q 6) Write a balanced net ionic equation for the reaction between barium nitrate and copper(II) sulfate. Q 7) If the mass of barium sulfate is 0.372 g, find the number of the moles. Questions 8- 9 refer to the choices below. A. Chromatography B. Crystallization C. Fractional distillation D. Filtration AbsorbanceWhat is the proper way to balance an the reaction of benzoic acid with sodium hydroxide to form sodium benzoate?
- Situation: ammoniacal solution of cuprous chloride is mixed with Acetylene. it was then filtered and dried. the precipitate product was divided into two for two different test. the first test is the ignition of the precipitate product and the second test is the dilution of the product with Hydrochloric acid. Question 1. What does the orange flame of the first test implies? 2. What odor does the 2nd test produced?What is the solubility, the pH, and reaction of carboxylic acids?Classify the following reagents to its appropriate type of excipient. Choices: Binder, Diluent, Disintegrant, Lubricant, Colorant, Flavorant 1. Calcium stearate 2. Mannitol 3. Mineral oil 4. Ethyl vanillin 5. Glycyrrhiza 6. Sodium starch glycolate 7. Carotene 8. Kaolin 9. Microcrystalline cellulose 10. Acacia 11. Lactose 12. Ethylcellulose 13. Tartrazine 14. Gelatin 15. Sodium alginate