Question

Find the volume of a gas at standard pressure if its volume at 1.9 atm is 80 ml?

given:
formula:
substitution:
answer:

Answer 1

1.5 × 10² mL

Step-by-step explanation:

Step 1: Given data

• Initial pressure of the gas (P₁): 1.9 atm

• Initial volume of the gas (V₁): 80 mL

• Final pressure of the gas (P₂): 1.0 atm (standard pressure)

• Final volume of the gas (V₂): ?

Step 2: Calculate the final volume of the gas

For an ideal gas, we can calculate the final volume of the gas using Boyle's law.

P₁ × V₁ = P₂ × V₂

V₂ = P₁ × V₁/P₂

V₂ = 1.9 atm × 80 mL/1.0 atm

V₂ = 1.5 × 10² mL

Since the pressure decreased, the volume of the gas increased.