A 3.34 mole solution of Propanol (C3H7OH) was prepared by dissolving a known amount of the substance in 200 grams of octane (C8H18) a) What was the mass of propanol added?

b) What is the mole fraction of octane.

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles

Imagine a small synthetic vesicle made from pure phospholipids enclosing an interior lumen containing 1 mm glucose and 1 mm sodium chloride. if the vesicle is placed in pure water, which of the following happens faster? a. na+ diffuses out. b. cl– diffuses out. c. h2o diffuses in. d. glucose diffuses out. e. sodium chloride diffuses out.