IB Chemistry 1.4.1 Mole (mol) Questions
IB Chemistry 1.4.1 Mole (mol) Questions
Convert cleanly between grams, moles and particles, then count atoms or ions in molecules, hydrates and ionic compounds without losing factors.
How this is tested
- find atoms in 7.75 g of P by converting mass to moles, then multiplying by Avogadro's constant
- calculate total atoms from formula units, e.g. O atoms in CuSO4·5H2O or H atoms in NH3
- count ions per formula unit before scaling by moles, e.g. ions in 0.20 mol of (NH4)2SO4