What is the value of Avogadro's constant?

What is the molecular formula of a hydrocarbon with m+ = 166? (write the formula with no subscripts, e.g. c4h10.) what is the sum of rings and double bonds in this compound?

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?