. A typical polyethylene bag from a grocery store weighs
12.4 g. How many molecules of ethylene, C2H4, must be
polymerized to make such a bag?
2 answers
Is that low density polyethylene, high density polyethylene, or something between the two? I think there is one between now. You really need to know the molar mass of the molecule to which the problem refers.
12.4 g * (1 mol / 28.05 molar mass of C2H4) * (6.022*10^23 Avagadro's constant) / 1 mol = 2.662 * 10^23 mol
2 answers