Answer:
158.0 mL.
Step-by-step explanation:
P₁V₁ = P₂V₂
Given:
P₁ = 99.0 kPa
V₁ = 300.0 mL
P₂ = 188 kPa (new pressure)
V₂ = ? (new volume)
99.0 kPa * 300.0 mL = 188 kPa * V₂
V₂ = (99.0 kPa * 300.0 mL) / 188 kPa
V₂ = (29700 kPa * mL) / 188 kPa
V₂ ≈ 158.0 mL