How many liters of H2 can form when 4.53 x 10^3 mL C5H8 form?

Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

What is the mass of oxygen gas is consumed in a reaction that produces 4.60mol so2