Ashhashh2002go Ashhashh2002go Chemistry Answered 3. A sample of gas at STP has a volume of 5.0 L. How many moles of gas are in the sample of gas? (A) 0.22 mol (B) 5.0 mol (C) 22.4 mol (D) 112 mol (E) There is not enough information to determine moles of gas.