Question

If you are inflating a balloon that has 0.0200 mol of Helium and a volume of 0.150 m3. How many moles of Helium are there if the new volume of the balloon is 0.90 m3?

Pls help

Answer 1

1.2 moles of Helium

Step-by-step explanation:

According to Avogadro's Law :

• V₁/n₁ = V₂/n₂

Here :

1. V₁ = 0.15 m³
2. n₁ = 0.2 moles
3. V₂ = 0.9 m³

Solving :

• n₂ = V₂n₁/V₁
• n₂ = 0.9 x 0.2 / 0.15
• n₂ = 6 x 0.2
• n₂ = 1.2 moles of Helium