Why was a stir bar added to the cyclohexane - toluene mixture prior to the start of thefractional distillation?.

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)

How many moles of co2 are produced during the complete combustion of 3.6 moles of c2h6