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1.5 - Chemical formulae, equations and calculations
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Total cards: 6•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (6)
#1
Front (Question)
What is Avogadro’s number?
Back (Answer)
Equal volume of gases at the same tempreture and pressure contain equal number of molecules.
#2
Front (Question)
What is volume of gas measured in?
Back (Answer)
cubic decimetres (dm3) divide by 1000 between cm and dm3
#3
Front (Question)
What is the calculation for molar volume?
Back (Answer)
Volume = number of moles x molar volume
#4
Front (Question)
How to calculate the percentage of an element in a compound?
Back (Answer)
% mass of an element = Ar x number of atoms in the element / Mr of the compound x 1000
#5
Front (Question)
What is the calculation for reacting mass?
Back (Answer)
Moles = Mass / Mr
#6
Front (Question)
What is percentage yield calculation?
Back (Answer)
Percentage yield = actual yield / theoretical yield x 100