Question

(i) Molecular mass of Sulphuric acid
(ii) Percentage composition of sodium in hydrated sodium carbonate
(iii) Molecular mass of Iron (II) sulphate. *

(iv) Percentage composition of chlorine in Magnesium chloride

Answer 1

⋆⫷❥ᴀ᭄n §₩ΣR⫸⋆

• 98.079 g/mol
• 98.079 g/mol
• 98.079 g/molMelting point: 10 °C
• 98.079 g/molMelting point: 10 °CDensity: 1.83 g/cm³
• 98.079 g/molMelting point: 10 °CDensity: 1.83 g/cm³Formula: H2SO4
• 55.845 u
• 55.845 uAtomic number: 26
• 55.845 uAtomic number: 26Electrons per shell: 2, 8, 14, 2
• 55.845 uAtomic number: 26Electrons per shell: 2, 8, 14, 2Symbol: Fe
• 43.40%
• 43.40%Percentage of Sodium [Na] in Sodium Carbonate [Na2CO3] = 46/106 x 100 = 43.40%.
• SO₄²-
• SO₄²-Molar mass: 96.06 g/mol