Mle percent of Helium-Oxygen Mixture - I am trying to figure out what percent (by moles) of is present in a helium-oxygen mixture having a density of 0.528g/L at 25C and 721mmHg (torr).
Percent composition - Gas chromatographic analysis of a mixture of organic compounds gave the following peak areas (sq cm): hexane = 2.7, heptane 1.6, hexanol = 1.8, toluene = 0.5
a. Calculate the mole percent composit ...
How did I get a greater than 100% recovery of benzoic acid? - To quickly summarize, the lab dealt with isolating benzoic acid from a mixture via chemically active extraction. The mixture consisted of cellulose, methyl orange and of course the benzoic acid.
W ...
Equilibrium Mixtures and Calculating Thermodynamic Parameters - 5. C(s) + CO2(g) ↔ 2 CO(g)
Carbon (graphite), carbon dioxide and carbon monoxide form an equilibrium mixture as represented by the equation above.
(a) Predict the sign for the change in en ...