Paul and Karen were studying physical and chemical properties of matter. They determined that the mass of a sample was 50 grams. Which sentence BEST states how mass describes matter?
A. The mass of a substance is a way to measure the amount of matter it contains.
O B. Mass is a way to measure the force of gravity on a substance.
o
C. Mass is a chemical property of a substance.
D. The mass of a substance may change, based on its location.

A

Explanation:

Mass is a measure of the amount of matter in an object.

11.27 mol of carbon dioxide gas is equal to 252.45 L or 270.48 L

Given

11.27 mol of CO2

Required

Volume of gas

Solution

If the conditions are assumed to be at the STP state (Standard Temperature and Pressure) at T 0 ° C and P 1 atm, then Vm is 22.4 liters/mol.

so for 11.27 moles the total volume is:

11.27 mol x 22.4 L = 252.45 L

But if the conditions are assumed to be at RTP (Room Temperature and Pressure), Conditions at T 25 ° C and P 1 atm. Vm = 24 liters/mol, then the volume of CO2:

11.27 mol x 24 L = 270.48 L.