Alab Technician Has Found Four Reagent Bottles With Missing Labels After A Thorough Analysis Of The Chemical Inventory 1 (78.67 KiB) Viewed 33 times
Alab Technician Has Found Four Reagent Bottles With Missing Labels After A Thorough Analysis Of The Chemical Inventory 2 (24.74 KiB) Viewed 33 times
Alab technician has found four reagent bottles with missing labels. After a thorough analysis of the chemical inventory, it was determined that those reagent bottles may have 3-pentanol, benzaldehyde, 2-heptanone or glucose. Those reagent bottles were labeled as A, B, C, and D, and following tests were performed to find the identity of those chemical reagents. The experiments and observations were reported in the following table Step Number Experiment Observation Four test tubes were labeled as A, B, C, and D and 0.2 g of each reagent was added to Only one layer of liquid is observed 1 those labeled corresponding test tubes. A 1 mL of water was added to each test tube and in C and D. A slightly immiscible two thoroughly mixed with water by gently shaking the test tube. layers were observed in A and B. Another clean dry four test tubes were labeled as A, B, C and D.A0.2 g of each reagent Only one completely miscible layer 2 was added to those labeled test tubes. A 1 mL of acetone was added to each test tube and thoroughly mixed with acetone by gently shaking the test tube. was observed in all 4 test tubes. A0.2 g of each compound was added to another set of clean dry labeled four test tubes. A blue-green solution was observed 3 A 1 ml of acetone was added to each test tube and thoroughly mixed with acetone by in A, C and D test tubes. An orange gently shaking the test tube. Then 4 drops of chromic acid reagent was added to each test colored solution was observed in the tube and mixed with the reagent. The observations were recorded after 4-5 minutes test tube B Another clean, dry four test tubes were labeled as A, B, C and D. About 3 mL of Tollen's reagent was added to each test tube. After wards, 2 drops of each reagent was added to A silver mirror was observed in test the corresponding test tube Observations were recorded tubes of A and C A positive result (red-brown Benedict test was performed for every compound. precipitate) was observed only in test tube C الا 4 15 A. List conclusions that can be made from Step 1 and Step 2. it is nonpolar B. Name possible compounds for A, C and D based on the observations of Step 3. C. Name possible compounds for A and C based on the results of Step 4. . Identify the names for all A, B, C and Dreagents. • Compound A
A. List conclusions that can be made from Step 1 and Step 2. it is nonpolar B. Name possible compounds for A, C and D based on the observations of Step 3. C. Name possible compounds for A and C based on the results of Step 4. . Identify the names for all A, B, C and D reagents. . Compound A= . Compound B - • Compound C = • Compound D =
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!