m2 - atoms and isotopes, amount of substance

Question 1

relative atomic mass

Answer 1

AVERAGE MASS of 1 atom
of an element
compared to 1/12th the mass of a carbon-12 atom

Question 2

relative isotopic mass

Answer 2

mass of an atom of an isotope
compared with 1/12th of the mass of a carbon-12 atom

Question 3

mass spectrometry

Answer 3

analytical technique used to identify different isotopes and find the overall RAM of an element

Question 4

mass spectrometry - RAM calculated how

Answer 4

Ar = m/z x abundance
—————————
total abundance

Question 5

avogadro constant

Answer 5

6.022 x10 ^ 23

Question 6

molar mass is

Answer 6

mass per mole (units g mol-1)

Question 7

molar gas volume is

Answer 7

gas volume per mole (dm3 mol-1)

Question 8

water of crystallisation def

Answer 8

water molecules that are part of a crystalline structure