Stoichiometry Quiz

4 Questions  I  By Bethany.herman
This quiz covers information from Chapter 9, Section 9-2 on Stoichiometry.  You will be expected to solve mole-mole, mole-mass, mass-mole and mass-mass problems.  This quiz can only be taken once.  Upon completion, show Mrs. Herman your score.

  
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1.  Nitrogen combines with oxygen in the atmosphere during lightning flashes to form nitrogen monoxide, NO, which then reacts further with O2 to produce nitrogen dioxide, NO2, according to the following equation:N2 (g) + O2 (g) --> 2 NO (g)2 NO (g) + O2 (g) --> 2 NO2 (g)   * Hint:  Use this equation to answer the question.What mass of NO2 is formed when NO reacts with 386 g of O2?
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2.  Iron is produced from iron ore through the following reaction in a blast furnace:Fe2O3 (s) + 3 CO (g)  --> 2 Fe (s) + 3 CO2 (g)If 4.00 g of Fe2O3 are available to react, how many moles of CO are needed?
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3.  The disinfectant hydrogen peroxide, H2O2, decomposes to form water and oxygen gas.  How many moles of O2 will result from the decomposition of 5 mol of hydrogen peroxide?
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4.  Coal can be converted to methane gas by a process called coal gasification.  The equation for the reaction is the following:2 C (s) + 2 H2O (l)  --> CH4 (g) + CO2 (g)What mass in grams of carbon is required to react with water to form 1.00 mol CH4?
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