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CHEM151_Lab_04 - GenChem Week 4 Today's Agenda Review...

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GenChem Week 4 Gas Behavior Today’s Agenda: Review understanding of molar mass & gas properties. Develop the day’s problem. Perform the first challenge: determine moles of unknown gas. Analyze results: identify unknown gas. Perform the final challenge: determine moles of another unknown gas. Analyze results: Identify the gas. Discuss writing the report.
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GenChem Revisiting the central goals of Chemical Analysis. Detection: Does the sample contain substance X? Identification: What is the identity of the substance in this sample? Central Goals and Questions Separation: How can the substances present in the sample be separated? Quantitation: How much of substance X is in the sample? What are we doing today?
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GenChem Identification . How can we identify an unknown gas? Let s think! By identifying some property or set of properties unique to a particular gas.
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GenChem Lets begin by reviewing what we know about gases. What are the properties of gases that are potentially useful? Compare your responses to the pre-lab question. Color? Boiling point? Density? Molar mass? Let s think!
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