The volume of a gas is 27.5 mL at 22°C and 740 mmHg. What will be its volume at 15.0°C and 755 mmHg?
The new volume will be
This question involves the combined gas law. The equation to use is:
When working with gas laws, the temperature is always in Kelvins. To get Kelvins from a Celsius temperature, add 273.15 to the Celsius temperature.
Determine what is known and what is unknown.
Rearrange the equation to isolate