In this lesson, we will learn how to calculate the relationship between the number of particles or moles in an ideal gas and the values of its bulk properties.
Q1:
Find the number of moles of carbon atoms that is equal to 1.226×10 atoms. Use a value of 12.0107 g/mol for the molar mass of carbon and use 6.022×10 for the value of Avogadro’s number. Give your answer to one decimal place.
Q2:
A gas at a pressure of 125 kPa and a temperature of 485 K consists of particles with a molar mass of 30.5 g/mol. Find the density of the gas. Use 8.31 m2⋅kg/s2⋅K⋅mol for the value of the molar gas constant. Give your answer to the nearest kilogram per cubic meter.
Q3:
Find the number of lithium atoms that is equal to 7.25 moles of lithium atoms. Use a value of 6.941 g/mol for the molar mass of lithium and 6.022×10 for the value of Avogadro’s number. Give your answer in scientific notation to two decimal places.
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