Solve the all given parts of following problem:
Problem: A closed bottle with a value of 2.10 L contains ethane gas at a temperature of 305 K and atmospheric pressure 1.013 x 105 Pa.
Part A: Find the number of moles of ethane gas in the closed bottle.
Part B: Now the lid of the bottle is removed and the bottle containing the gas is warmed to a temperature of 395 K (bottle is now open to the atmosphere). Find the number of moles of ethane gas remaining inside the bottle.
Part C: The bottle is then closed, and cooled to its original temperature. What is the final pressure of the gas in the bottle?
Please show all work so I can fully understand all concepts! Thanks in advance.