What is the unit of measurement for the amount of a substance

• Volume
• Mass
• Concentration
• Moles

Calculate the molar mass of Magnesium Chloride - MgCl₂

• 71
• 35.5
• 59.5
• 95

Calculate the molar mass of Magnesium Oxide - MgO

• 40
• 24
• 16
• 56

Calculate the molar mass of Copper Oxide - CuO

• 95.5
• 16
• 63.5
• 79.5

Calculate the molar mass of Hydrochloric Acid - HCl

• 36.5
• 35.5
• 35
• 37

Calculate the molar mass of Ammonium Chloride - NH₄Cl

• 53.5g
• 35.5g
• 55.3g
• 5.53g

Calculate the molar mass of Ammonium Sulphate (NH₄)₂SO₄ 

• 0.132g
• 1.32g
• 13.2g
• 132g

Calculate the molar mass of Calcium Hydroxide - Ca(OH)₂

• 65
• 74
• 57
• 58

Calculate the molar mass of Carbon Dioxide CO₂

• 28
• 32
• 16
• 44

Calculate the molar mass of Iron Nitrate - Fe(NO₃)₃

• 118g
• 224g
• 424g
• 242g