Chemistry: Matter and Change
Chemistry: Matter and Change
1st Edition
ISBN: 9780078746376
Author: Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher: Glencoe/McGraw-Hill School Pub Co
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If 2.00 g of helium gas and 5.46 g of oxygen gas are mixed together, what is the mole fraction of helium in the solution?

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  • 5.34 Define the term mole fraction
    When hydrogen peroxide decomposes, oxygen is produced: 2H2O2(aq)2H2O+O2(g)What volume of oxygen gas at 25C and 1.00 atm is produced from the decomposition of 25.00 mL of a 30.0% (by mass) solution of hydrogen peroxide (d=1.05g/mL)?
    Explain how the volume of the bubbles exhausted by a scuba diver (Figure 9.16) change as they rise to the surface, assuming that they remain intact.
  • How would the graph in Figure 9.12 change if the number of moles of gas in the sample used to determine the curve were doubled?
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