📘 Step-by-Step Solution
Step 1: Given Data
Number of moles of O₂ = 0.5 mol
We need to calculate the mass of 0.5 mole of oxygen gas.
Step 2: Calculate the Molar Mass of O₂
Atomic mass of oxygen:
O = 16 g mol⁻¹
Since O₂ contains two oxygen atoms:
Molar Mass of O₂
= 2 × 16
= 32 g mol⁻¹
= 2 × 16
= 32 g mol⁻¹
🎬 O₂ Molecular Animation
O
O
→
O₂ = 32 g mol⁻¹
One O₂ molecule contains two oxygen atoms.
Step 3: Use the Formula
Mass = Number of Moles × Molar Mass
Step 4: Substitute the Values
Mass = 0.5 × 32
= 16 g
= 16 g
🎬 Final Calculation Animation
0.5 mol O₂
×
32 g mol⁻¹
→
16 g
Moles × Molar Mass gives the required mass.
✅ Final Answer
Mass of 0.5 mole O₂ = 16 g
Therefore, 0.5 mole of O₂ has a mass of 16 grams.
🎯 Quick Formula
Mass = n × M
= 0.5 × 32
= 16 g
= 0.5 × 32
= 16 g
