The Mole Flashcards
What is a mole? (general chemistry)
a number of individual entities or things
What does a mole link to in terms of units?
the mass in atomic mass units to the mass in grams
What is an example of a mole for oxygen?
O atom has 8 protons and 8 neutrons
so 1 mole of oxygen is 16 grams
What is the definition of a mole?
the amount of substance of a system which contains as many “elemental entities” (e.g. atoms, molecules, ions or electrons)
What is the formula for moles of a substance?
Atomic mass/ grams
How do you reverse the mole equation to get mass (g)?
Moles x Mr
What is Mr in the mole equation?
Molar mass (in grams)/ atomic mass
What is a mole equal to?
Avagadros constant- 6.022x10*23
What is the definition of Avagadros constant?
the number of particles contained in any one mole of substance
What does 1 M mean with moles?
1 mole per litre
What is the heat capacity of water?
4.184Jg-1K-1
