Radon is a radioactive noble gas that can sometimes be found in unventilated basements. A sample of 1.35*10-4mol of radon gas is held in a container with a volume of 3.03mL. A quantity of radon gas is added to the container, which is then found to have a volume of 7.79mL at the same temperature and pressure. How many moles of radon were added to the container?

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Chemistry

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24 May, 04:54

Radon is a radioactive noble gas that can sometimes be found in unventilated basements. A sample of 1.35*10-4mol of radon gas is held in a container with a volume of 3.03mL. A quantity of radon gas is added to the container, which is then found to have a volume of 7.79mL at the same temperature and pressure. How many moles of radon were added to the container?

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Answers (1)

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Aimee Johnson · Answer 1

2.12*10^-4 moles

Explanation:

If 3.03ml contains 1.35*10^-4mol then 7.79 will contain 7.79ml*1.35*10^-4/3.03 = 3.47*10^-4 moles

Amount added = (3.47-1.35) * 10^-4=2.12*10^-4moles