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The Mole Concept.
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Total cards: 4•Content version: v4•Public deck•Updated: 8/1/2026
Card preview (4)
#1
Front (Question)
What is the Avogadro number or the Avogadro constant?
Back (Answer)
The number of atoms, ions or molecules is called the Avogadro number or the Avogadro constant.
#2
Front (Question)
What is a mole?
Back (Answer)
A mole is the amount of substance that contains 6 x 10²³ atoms, ions, or molecules.
#3
Front (Question)
What are the three ways you can calculate the number of moles?
Back (Answer)
Number of moles = mass of substance ÷ mass of one mole/Mr. Number of moles = Volume of gas in dm³ at r.t.p ÷ 24. Number of moles = concentration of solution (mol/dm³) x volume of solution (dm³).
#4
Front (Question)
How do you convert the value from cm³ to dm³?
Back (Answer)
If the value is in cm³ divide by 1000 to get a value in dm³.