The sucrose however breaks down in the basic Tollen's Reagent and the resulting glucose will reduce the silver. Wear gloves and goggles. Acetone is volatile. Do not use near flame. Work in hood when washing flasks with acetone.
Silver is toxic.
Wear gloves and goggles. Wash hands when done handling these chemicals. I have heard that silver-ammonia mixtures, if left sitting around can become explosive. Before Class - Prepare the Flasks Rinse the flasks with distilled water, leaving the water in the flask. Using a pipette rinse the inside of the flask with Nitric acid and then swirl the acid and water in the flask.