Paper 3 · June 2009 · Atomic Structure and Bonding
Which statement about relative atomic mass is correct?
AIt is a ratio of masses.
BIt is measured in grams.
CIt is related to the number of atoms in a molecule.
DIt is the same as the mass of 1 mol of atoms.
Explanation
The marking scheme gives answer A. Relative atomic mass is a dimensionless ratio of the average mass of an atom to 1/12 the mass of a carbon-12 atom.
ZIMSEC Chemistry Paper 3, June 2009, Q4