Chemistry Question help

Cn you guys please help me with the following questions?  

At constant temperature, a gas occupies a volume of 840 mL at 520 mm Hg. If we increase the pressure to 705 mm Hg, what will be the volume of the gas?


At constant pressure, a gas occupies a volume of 270 mL at 320 C. What is the volume of the gas at -210 C?



We have 950 mL of a gas at 200	C and 350 mm Hg.	If we heat the gas to 1750	C at constant volume, what will the pressure be?


A balloon holding 390 mL holds 2.8 moles of argon. If we add 3.2 moles of the gas at the same temperature and pressure, what will the volume of the balloon be?



You have 540 mL of a gas at a pressure of 723 mm Hg and a temperature of 340 C. What is the volume if you change the pressure to 840 mm Hg and the temperature to 91 0C?




A mixture of three gases is in a container. The mixture exerts a total pressure of 456 atmospheres. If gas A exerts a pressure of 195 atmospheres and gas B exerts a pressure of 97 atmospheres, what is the pressure of gas C?


Which gas will diffuse faster: Ne or carbon monoxide (CO)? Explain your answer.





Thanks!

-Smileyranger :3




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