Course review
Review each learning objective in this topic, then open its concept explanation or question set.
Learning objective
• SI unit of amount of substance • One mole = Avogadro constant number of entities • Convert between amount of substance and number of specified particles
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
• Compared to ¹²C standard • Determine relative formula mass from relative atomic masses
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
• Units: g mol⁻¹ • Relationships: particles ↔ moles ↔ mass • Solve mass, mole, and particle problems using n = m/M
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
• Empirical: simplest ratio of atoms • Molecular: actual number of atoms in molecule • Interconvert percentage composition and empirical formula • Determine molecular formula from empirical formula and molar mass
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
• Determined by amount of solute and volume of solution • Solve concentration, amount, and volume problems; square brackets mean molar concentration
Start with the concept explanation, then practise to create mastery evidence.
Learning objective
• Equal volumes of gases (same T, P) contain equal numbers of molecules • Mole ratio calculations with gas volumes • Use gas volume ratios from balanced equations
Start with the concept explanation, then practise to create mastery evidence.