How many moles are in the number of molecules below? I only need to know the 5th question.

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.

The molecular weight of carbon dioxide, co2, is 44.00 amu, and the molecular weight of nitrous dioxide, no2, is 46.01 amu, so no2 diffuses co2

Use the periodic table to determine how many grams of oxygen would be required to react completely with 859.0 g c2h2