Compute all parts of following problem given below:
Problem: A flask with a volume of 1.50L, provided with a stopcock, contains ethane gas (C2H6) at a temperature of 310K and atmospheric pressure 1.013 × 105 Pa. The molar mass of ethane is 30.1g/mol. The system is warmed to a temperature of 395K, with the stopcock open to the atmosphere. The stopcock is then closed, and the flask cooled to its original temperature.
Part I: What is the final pressure of the ethane in the flask?
(Pa)
Part II: How many grams of ethane remaining in the flask?
(g)
Explain how you came up the prefixes and solution please.