• Aug 17, 2025 Avogadros Law Problems And Answer Key and pressure has a volume of 12 liters and then expands to 18 liters, how many moles does the gas have initially if the final amount is 4 moles? **Solution:** Using Avogadro’s Law, V₁/n₁ = V₂/n₂. Given V₁ = 12 L, By Celia McGlynn
