ANSWER 1-16 (ALL QUESTIONS)

1a) What happens to the pressure of a gas when the volume decreases? b) What happens to the pressure of a gas when the temperature decreases? c) What happens to the pressure of a gas when the number of moles decreases? 2a) What does the pressure do when the volume changes from 75.0 mL to 50.0 mL? b) What does the pressure do when the temperature changes from 0 C to -195 C? c) What does the pressure do when the number of moles changes from 1.00 mol to 5.00 mol? 3) Why does an increase in volume of a gas cause a decrease in its pressure? 4)Why does an increase in temperature cause an increase in its pressure? 5)A 100.0 mL sample of air is collected at 21 -C and 772 mmHg. What will the volume be if the temperature and pressure are changed to STP? 6)|f a sample of oxygen gas occupies 25.0 ml. at -25 C and 650 mmHg. what will the volume be at 25 \"Cand 350 mmHg? 7)A sample of hydrogen fluoride gas occupies 1250 mL at STP. What is the pressure (mmHg) if the volume is 255 mL at 300.0 \"C? 8)A sample of ammonia gas has a volume of 50.0 mL at STP, What is the Celsius temperature if the volume is 350.0 mL and the pressure is 0.4605 atm? 9) A sample of xenon gas has a volume of 7000 mL at -185 C and 75.0 cmHg. What is the final Celsius temperature if the volume is 225.0 mL at 55.0 cmHg? 10) A sample of air has a pressure of 15.0 psi (pounds per square inch) and a volume of 555 mL, What will be the pressure when the air is compressed to 275 mL? 11) Calculate the final volume when 125 mL of argon gas undergoes a pressure change from 775 mmHg to 0.5066 atm. Assume that the temperature remains constant 12) A 2.530 L sample of nitric oxide at 100.0 C is cooled to 20.0 C. Ifthe pressure remains constant. what is the final volume? 13) Calculate the final Celsius temperature when 500 L of fluorine gas at 50.0 \"C is cooled to give a final volume of 3750 mL 14) A 25.0 mL sample of neon gas at 455 mmHg is cooled from 1000 C to 10.0 aC. If the volume remains constant, what is the final pressure? 15) Asample of nitrogen dioxide gas has a temperature of 0.0 \"C and a pressure of 375 mmHg. Calculate the nal Celsius temperature after the pressure is changed to 225 mmHg. 16) What is the relationship between vapor pressure and a liquid's temperature