Igcse Chemistry Past Paper | ((hot))

A) 28 g B) 32 g C) 44 g D) 48 g

From equation: 1 mol Mg → 1 mol H₂ So moles H₂ = 0.10 mol Volume H₂ = 0.10 × 24 = 2.4 dm³ (1 mark for mole ratio, 1 mark for volume) igcse chemistry past paper

How many moles are present in 36 g of water (H₂O)? (Ar: H = 1, O = 16) A) 28 g B) 32 g C) 44

Calculate the volume occupied by 0.5 moles of oxygen gas (O₂) at room temperature and pressure (RTP). (Molar volume = 24 dm³/mol) (Ar: Mg = 24) [2] Exam Board: Cambridge

Calculate the number of moles of magnesium in 2.4 g of Mg. (Ar: Mg = 24) [2]

Exam Board: Cambridge CIE 0620 Paper: 2 – Multiple Choice (Extended) – Extract Topic: Stoichiometry & Mole Calculations Time allowed: 15 minutes (extract) Total marks: 10 Section A: Multiple Choice Questions Question 1 What is the mass of one mole of carbon dioxide (CO₂)? (Ar: C = 12, O = 16)