Pay attention to the discussions prior to the experiment for special disposal instructions. Do not pipet directly from reagent jugs. Be careful to use a clean pipet and do not contaminate these solutions. Put the lids on stock solutions and reagents after using them. Otherwise solutions can become contaminated or just evaporate.
Many solid reagents are hygroscopic and pull water out of the air.
If you don't find some of the required equipment or reagents, ask an instructor for help.