A-LevelChemistryAtoms, molecules and stoichiometry9701/12 · Feb/Mar 2022 · Q141 Mark
Which statement about atoms and molecules is correct?
AThe molecular formula of a compound is the simplest whole number ratio of atoms of each element in the compound.
BOne mole of any substance contains 6 × 10²³ atoms.
CThe relative atomic mass of an element is the ratio of the average mass of one atom of the element to the mass of an atom of carbon-12.
DThe relative formula mass of a compound is the sum of the individual atomic masses of all the atoms in the formula.
✓ Correct answer
D: The relative formula mass of a compound is the sum of the individual atomic masses of all the atoms in the formula.
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