Question

1 diff between
a) molar mass and molecular mass
b) atomic mass and atomic mass unit
c) cations and anions
2 Define
a) mole
b) atomicity
c) polyatomic ions
d) formula unit
3 find no of mole
108 g of water
16 g of methane
1.20×10^22 O2 molecules
4 Which has more no of molecules
4g of methane Ch4 or 4g of O2​

Answer 1

Explanation:

It is defined as the mass of Avogadro number of atoms/molecules or compounds No particular melting point

Measurement given to compounds, atoms or molecules Determined only in molecules

Less accurate than molecular mass Accurate to use in higher calculations