Answer:
836 mmHg
Explanation:
Given data:
Initial volume = 38.2 mL
Initial temperature = 25°C (25+273=298 k)
Final volume = 37.5 mL
Final temperature = standard = 273 K
Final pressure = standard = 1 atm
Initial pressure = ?
Solution:
Formula:
P₁V₁/T₁ = P₂V₂/T₂
P₁ = Initial pressure
V₁ = Initial volume
T₁ = Initial temperature
P₂ = Final pressure
V₂ = Final volume
T₂ = Final temperature
Solution:
P₁ = P₂V₂T₁ /T₂ V₁
P₁ = 1 atm × 37.5 mL × 298 K / 273 K × 38.2 mL
P₁ = 11175 atm / 10428.6
P₁ = 1.1 atm
atm to mmHg
1.1 atm × 760 mmHg / 1 atm
836 mmHg
