A student performs the Week 1 lab, thermodynamics of the vaporization of water. They find the moles of air in the cylinder to be 0.00021 mol. At 75oC, the volume of the gas (already corrected for the inverted meniscus) in the cylinder was 9.00mL. The atmopheric pressure was 0.996 atm. What is the partial pressure of water in the flask. Answer in atm to the hundredths place.

For many purposes we can treat propane (C,H,) a as an ideal gas at temperatures above its boiling point of -42. "C. Suppose the temperature of a sample of propane gas is raised from 90.0 °C to 144.0 °C, and at the same time the pressure is increased by 10.0%. Does the volume of the sample increase, decrease, or stay the same? O increase O decrease O stays the same If you said the volume increases or decreases, calculate the percentage change in % the Round your answer to the percent X

Consider the following situation:  You have a 50 L tank of compressed air at 15 atm and 100 ºC.  You then pass the compressed air through a "titanium getter" which contains fragments of hot titanium metal.  The purpose of the "getter" is to remove oxygen gas from the sample as Ti reacts with oxygen to form solid TiO2 (known as titania).  Once the purified air is passed through the getter is it cooled back down to  100 ºC and fills another 50 L storage tank.  If air typically contains about 20% oxygen, what could the pressure in the storage tank be?     Question 2 options:   A)  12 atm   B)  15 atm   C)  18 atm   D)  24 atm

9)A sample of oxygengas collected at a pressure of 1.05atm and a temperature of 301K is found to occupy a volume of 568milliliters. How many moles of O2gas are in the sample?   Can you show me your work on paper so that I can better understand it?