The following groups of questions are related to the topics in this chapter. However, they do not all follow the chapter order, and they require you to combine concepts and skills from several sections. These questions will help you increase your critical thinking skills and prepare for your next exam.
A sample of gas with a mass of 1.020 g occupies a volume of 762 mL at 0 °C and 1.00 atm (STP).
a. What is the molar mass of the gas?
b. If the unknown gas is composed of 0.815 g of carbon and the rest is hydrogen, what is its molecular formula?
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