amount of substance Flashcards
1
Q
what is avogadro’s constant
A
6.022 x 10^23
2
Q
how to work out number of particles
A
no. moles x av. constant
3
Q
what is the ideal gas equation
A
pV = nRT
pressure in pascals
volume in m^3
temperature in kelvin
4
Q
how to work out percentage yield
A
experimental mass/ theoretical mass x 100
5
Q
how to work out atom economy
A
Mr of desired products / Mr of reactants x 100
6
Q
why is high atom economy desired
A
- little or no waste product which may be expensive to dispose of
- beneficial for the environment because it uses fewer natural resources
