You are given a 10,0 grams sample of ethanol (CH3CH2OH). Explain how you can use the molar mass of ethanol to find the number of ethanol
molecules and the number of carbon atoms in the sample.

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?