weighing-gases-answers

# weighing-gases-answers - massive(see molar masses 4 The...

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Weighing gases lab

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Results 1.82 346.82 345.00 CO 2 1.32 346.32 345.00 O 2 0.0835 345.08 345.00 H 2 Mass (g) Flask+gas Flask Gas # of molecules Moles (mol) Molar mass (g/mol) Gas 2.49 x 10 22 0.0414 44.01 CO 2 2.48 x 10 22 0.0413 32.00 O 2 2.49 x 10 22 0.0413 2.02 H 2 1.82 1.32 0.0835 Density(g/L)
1. Law of Combining gas volumes : “When measured at the same temp. and pressure, volumes of gaseous reactants and products of chemical reactions are always in simple ratios of whole numbers”. Avogadro's theory : “Equal volumes of gases at the same temperature and pressure contain equal numbers of molecules”. 2. Yes. All 1 L flasks (same temp & pressure) held the same number of molecules. O 2 H 2 3. O 2 molecules are16x more

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Unformatted text preview: massive (see molar masses): 4. The mole ratios in the balanced chemical equation. # of molecules Moles (mol) Molar mass (g/mol) 2.49 x 10 22 0.0413 16.05 CH 4 2.49 x 10 22 0.0414 44.01 CO 2 2.48 x 10 22 0.0413 32.00 O 2 2.49 x 10 22 0.0413 2.02 H 2 0.66 345.66 345.00 CH 4 1.82 346.82 345.00 CO 2 1.32 346.32 345.00 O 2 0.08 345.08 345.00 H 2 Mass (g) Density(g/L) Flask +gas Flask Gas 5. Avogadro’s Theory: Graphical Representation + → hydrogen chlorine hydrogen chloride + → carbon monoxide oxygen carbon dioxide + → nitrogen hydrogen ammonia For more lessons, visit www.chalkbored.com...
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weighing-gases-answers - massive(see molar masses 4 The...

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