2. How many moles of oxygen (O2) would be needed to produce 79.60
moles of sulfur trioxide (SO3) according to the following balanced
chemical equation?
2 SO, + O2 --> 2 SO
3

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

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.

If many scientists conduct the same or similar experiments, and all obtain similar results, a can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works.