Select all the solvents/solutions in whicn you wouId expect this compound to dissolve: H. Ethyl acetate Dilute aqueous HCI Dilute aqueous sodium bicarbonate Dilute aqueous NaOH
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Q: The solvent in KOH solution is ……………………… a. Water b. H c. OH d. KOH
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Q: To prepare 500 mL of 6 ppm of aqueous ethylene glycol, we need . . dissolve in 500 mL
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Q: elect all the solvents/solutions in which you would expect this compound to dissolve: .N. ) Ethyl…
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Select all the solvents/solutions in which you would expect this compound to dissolve:
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- Which of the following solvent will non-selectively elute all the compounds in the column? A. dichloromethane B. ethyl acetate C. methanol D. ethanolwhich of the following solvents cannot be used with (CH3)3COK a. (CH3CH2)20 b. (CH3)3COH c. H20 d. liquid ammonia (NH3) e. multiple f. noneDescribe the difference between protic and aprotic solvents. Provide an example of each to support your answer.
- Name all solvents/ compunds you would expect each compound to dissolve in. dilute aqueous sodium bicarbonate dilute aqueous HCL dilute Aqueous NaOH Ethyl AcetateWhich is the best solvent to recrystallize the following compound?Give the reagents and results/observation (ex. color) Test for aldehydesa. Schiff’s testb. Formalinc. Acetoned. Benzaldehydee. Acetophenone
- Compute the amount of reagents which will be used for the preparation of the following reagents. a. 3 L of 1 M H2SO4 concentration H2SO4: 98% with a density of 1.84g/mlClassify these solvents as either protic or aprotic solvents.A colorless unknown substance is spotted on a TLC plate and developed in the correct solvent. The spots do not appear when visualization with a UV lamp or iodine vapors is attempted. What could you do in order to visualize the spots if the compound isa. An alkyl halideb. A ketonec. An amino acidd. A sugar
- Fill in the fields (reagent or products) left blank in the reaction below.What impurity was likely removed during the recrystallization necessary and was it effective and why do you think so using the prcedure belwo and the reaction provided. PROCEDURE Synthesis of Dibenzalacetone (A) In this lab you will need to determine the amounts of the reactants you will use. We will use 0.0125 moles of acetone. You need to: (1) convert this into a volume in mL, (2) Calculate the number of moles of benzaldehyde needed based on the balanced chemical reaction, (3) Convert the number of moles of benzaldehyde into volume in mL. Your reagent table should reflect your calculated values. Mix the benzaldehyde and acetone based on the volumes from your prelab calculations in a testtube. Add 25 mL of 10% NaOH solution to a 125 mL Erlenmeyer flask along with a stir bar and 20 mL of ethanol. Make sure the temperature of the solution in the flask is below 25 C before proceeding. Add half of the solution from your test tube to the flask. Allow the solution to…Two Compounds: 3-methylbutyric acid and 4,5-dimethyldecane Suppose you took your two compounds, dissolved them in tertbutyl methyl ether and then added them to a separatory funnel. Now suppose you add in aqueous sodium bicarbonate. _____________________ will be dissolved in the terbutyl methyl ether. ________________________ will be dissolved in the aqueous sodium bicarbonate layer. Draw the EXACT chemical structure that will exist in each of the layers after shaking with sodium bicarbonate. (Is it neutral or charged?)