Editing Alot Of Stoichiometry Problems
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Answer the following problems showing all appropriate work. <b>All work on separate sheets of paper where three (3) problems per page</b><br> a. How many moles of aluminum oxide are produced when 0.60 mole of Iron is produced in the following chemical reaction.<br> 2 Al<sub>(s)</sub> + 3 <nowiki>FeO</nowiki><sub>s</sub> --> 3 Fe <sub>(s)</sub> + 1 Al<sub>2</sub>O<sub>3 (s)</sub><br> <br> b. How many moles of sulfuric acid (H<sub>2</sub><nowiki>SO</nowiki><sub>4</sub>) are needed to completely react with 15.0 moles of aluminum in the following chemical reaction. <br> 2 Al<sub>(s)</sub> + 3 H<sub>2</sub><nowiki>SO</nowiki><sub>4 (aq)</sub> --> 1 Al<sub>2</sub>(SO<sub>4</sub>)<sub>3 (aq)</sub> + 3 H<sub>2 (g)</sub><br> <br> c. How many liters of oxygen gas @STP do you need to "burn" biologically to 43.5g of glucose (C<sub>6</sub>H<sub>12</sub>O<sub>6</sub>)?<br> 1 C<sub>6</sub>H<sub>12</sub>O<sub>6</sub> + 6 O<sub>2 (g)</sub> --> 6 CO<sub>2 (g)</sub> + 6 H<sub>2</sub>O<sub>1 (l)</sub><br> <br> d. How many liters of NH<sub>3</sub> are needed to react completely with 30.0L of NO in the following chemical reaction. Assume all gases @STP.<br> 4 NH<sub>3 (g)</sub> + 6 NO<sub>(g)</sub> --> 5 N<sub>2 (g)</sub> + 6 H<sub>2</sub>O<sub>(g)</sub><br> <br> e. How many grams of Fe<sub>2</sub>O<sub>3</sub> are formed when 16.7g of Fe reacts completely with oxygen?<br> 4 Fe<sub>(s)</sub> + 3 O<sub>2 (g)</sub> --> 2 Fe<sub>2</sub>O<sub>3 (s)</sub><br> <br> f. How many grams of calcium oxide do I need to react to obtain 5.45E25 atoms of Hg as described by following reaction.<br> 4 <nowiki>HgS</nowiki><sub>(s)</sub> + 4 <nowiki>CaO</nowiki><sub>(s)</sub> --> 4 Hg<sub>(l)</sub> + 3 <nowiki>CaS</nowiki><sub>(s)</sub> + 1 <nowiki>CaSO</nowiki><sub>4 (s)</sub><br> <br> g. How many liters of H<sub>2</sub>O (as a gas @STP) do I produce if I react 45.6 liters of oxygen gas (@STP) with sufficient amount of hydrogen gas?<br> 2 H<sub>2 (g)</sub> + 1 O<sub>2 (g)</sub> --> 2 H<sub>2</sub>O<sub>(g)</sub> <br> <br> h. Sodium reacts with calcium nitrate to produce sodium nitrate and calcium metal. Please give balanced complete (molecular) chemical reaction including phases. How many grams of calcium nitrate did I need to react to produce 21.8g of sodium nitrate?<b>(Sorry this reaction actually does not occur because sodium is not higher on Activity series as calcium. BUT do the problem anyway.)</b><br> <br> <br> <P style="page-break-before: always"> Answers:<br> a. 0.20 mole Al<sub>2</sub>O<sub>3</sub><br> b. 22.5 mole H<sub>2</sub><nowiki>SO</nowiki><sub>4</sub><br> c. 32.5L O<sub>2</sub> @ STP<br> d. 20.0L NH<sub>3</sub> @ STP<br> e. 23.9g Fe<sub>2</sub>O<sub>3</sub><br> f. 5.07E3g <nowiki>CaO</nowiki><br> g. 91.2L H<sub>2</sub>O<sub>1</sub> @ STP<br> h. 21.0g Ca<sub>1</sub>(NO<sub>3</sub>)<sub>2</sub>, List of Coefficient 2, 1, 2,1<br>
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