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Question 2


A 16 cm diameter cylinder that is 43 cm long contains 54 g of oxygen gas at 20 °C.


Express your answers using two significant figures.

Part A: How many moles of oxygen are in the cylinder?


Part B: How many oxygen molecules are in the cylinder?


Part C: What is the number density of the oxygen?

Part D: What is the reading of a pressure gauge attached to the tank?

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