# A sample of gas occupies a volume of 50.0 milliliters in a cylinder with a movable piston. The pressure of the sample is 0.90 atmosphere and the temperature is 298 K. What is the volume of the sample at STP?

##### 1 Answer

Dec 19, 2015

The new volume is 41 mL.

#### Explanation:

Use the combined gas law

**Given/Known**

**Unknown**

**Solution**

Rearrange the equation to isolate