1a. comment on the basic strength of the amines relative to ammonia…

  

1a. comment on the basic strength of the amines relative to ammonia… 1a. comment on the basic strength of the amines relative to ammonia and account for any differences in their strength as bases. notes: Butylamine – ph of 11, and Phenylamine – ph of 6, ammonia – ph 11  1b.  Add dilute sodium hydroxide to the solution of phenylamine in hydrochloric acid until the mixture is alkaline. Explain why did the solution started to bubble when sodium hydroxide was added to the solution of phenylamine in hydrochloric acid? Also why was the solution light yellow on the bottom of the test tube but clear on the top half of the test tube.  1c. Put 3 drops of phenylamine in test tube and add concentrated hydrochloric acid drop by drop until the phenylamine dissolves. Now add bromine water dropwise until no further change occurs. Explain why when phenylamine was added to the concentrated hydrochloric acid the solution changed from a redish brown to an orange. Then while in the ice bathe why did the color change to yellow. After the bromine water was added why was a teal blue in the test tube? Also why was there a solid solution at the bottom of the test tube. And why was a gas given off?  What is the equation for the reaction which occurs? Chemistry Science Organic chemistry CHEM 211 Share (0)