CHEMISTRY · Multi-part · A Level · Chemistry · Amount of substance · Amount of substance
Problem
A balloon contains a gas that occupies 44.8L at STP. Use Avogadro’s number NA=6.02×1023mol−1.
(a) Find the amount of gas in moles.
(b) Estimate the total number of molecules present in the balloon.
(c) If the gas is carbon dioxide, calculate its mass contained in the balloon.