The following are true for Tollen’s test, EXCEPT:     It is otherwise known as the silver mirror test     It is usually used to differentiate aldehydes from ketones       Can be used as confirmatory test for citrates and tartrates     It uses a reagent which is a colorless, basic, aqueous solution containing silver ions coordinated to ammonia [AgNH3)+2]       Formation of metallic silver produces as black precipitate

Which conditions are necessary to confirm that a compound is a hydrate? The compound does not lose any mass when heated. The compound changes color when heated. The compound loses water upon heating. The solution that contains the dissolved anhydride is the color of the hydrate." The anhydride that is produced dissolves in water.

A test tube contains an alcohol which is colorless and clear. When a solution of Na2Cr₂O7 is added to this test tube, the following is observed: How would you interpret this test result? This is a negative dichromate test, which means that the alcohol is NOT an alcohol which can be oxidized. This is a negative dichromate test, which means that the alcohol IS an alcohol which can be oxidized. This is a positive dichromate test, which means that the alcohol is NOT an alcohol which can be oxidized. This is a positive dichromate test, which means that the alcohol IS an alcohol which can be oxidized.

In Aspirin lab preparation a student used 69.0 g of salicylic acid and 30.0 g of acetic anhydride. Write the general balanced equation and calculate the reaction efficiency, if the pure aspirin was 0.25 mole. Why did you use phosphoric acid in the reaction?