Question

NAME DATE BELL GAS PROBLEMS VLAR VOLUME PROBLEMS 1. A sample of gas contains 4.52 moles at STP. What volume would this occupy? 2. If you have 76.9 g of NO2, whal volume would this occupy at STP? 3. A sample of O2 gas occuples 4.6 L at STP. How many atoms are in the sample? 4. A sample of gas has a volume of 39.4 L at STP. How many moles is this? GAS LAWS 5. A gas has a volume of 225 L at STP. Assuming there is no change in pressure, what volume will the gas have if the temperature increases to 75º C? 6. A gas has a volume of 420 L at STP. Assuming there is no pressure change, what volum a will the gas occupy if the volume changes to 350 L?​

Answer 1

See attached image. The last problem was a challenge, but I can guarantee that it is the teacher's fault if I'm not correct.

Step-by-step explanation:

On the attachment. Remember that all gasses occupy 22.4 liters at STP. It is a good constant to memorize. It often comes up in chemical calculations, and you can also use it at parties if you want to annoy anyone. Also, depend on the units to help you decide how to do a calculation. moles/liter or liters/mole: it makes a difference in whether you multiply or divide. Use the operation that cancels the units you don't want and leaves the target unit.