How many atoms are in 1.50 moles of fluorine gas

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?