2.1.3 Flashcards
(11 cards)
1
Q
moles
A
the amount of substance that contains the same number of particles as there are atoms in 12g of carbon-12
2
Q
what is the formula linking moles, mass and molar mass?
A
moles = mass/ molar mass
3
Q
what is avogadros constant?
A
6.02 x 10^23
4
Q
moles of water molecules, oxygen atoms, hydrogen atoms, atoms and electrons in 18g of H2O
A
- 1 mole of water molecules
- 1 mole of oxygen atoms
- 2 moles of hydrogen atoms
- 3 moles of atoms
- 10 moles of electrons
5
Q
number of “things”
A
number of moles x (6.02x10^23)
6
Q
what is the ideal gas equation?
A
pV=nRT
7
Q
what is the p in the ideal gas equation and units?
A
pressure in Pascals (Pa)
8
Q
what is the V in the ideal gas equation and units?
A
volume in m^3
9
Q
what is the n in the ideal gas equation and units?
A
number of moles (of gas)
10
Q
what is the R in the ideal gas equation and units?
A
gas constant 8.314 Jmol^-1K^-1
11
Q
A
