Study Guide CHE 120-004
Popular in General Chemistry I - NS
Popular in Chemistry
MAT 122 - M100
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This 2 page Study Guide was uploaded by Rochelle Foxx on Saturday October 3, 2015. The Study Guide belongs to CHE 120-004 at Northern Kentucky University taught by Richard Bloss in Fall 2015. Since its upload, it has received 43 views. For similar materials see General Chemistry I - NS in Chemistry at Northern Kentucky University.
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Date Created: 10/03/15
Chapter 3 and 4 Study guide Stoichiometry problems NH3 139 02 139 H20 1 2 3 4 Balance equation 4N H3 502 4N0 6H20 Solve the problem of how many moles of NO 2 moles of 02 4 moles of NO 5 moles of 02 16 moles of NO How many moles of H20 2 moles of 02 4 moles of NO 5 moles of 026 moles of H20 4 moles of N0 24 moles of H20 How many grams of NO 2 grams of 02 1 mole of 02 32g of 024 moles of NO 5 moles of 023Og NO 1 mole of N0 15 grams of NO Limiting reagent and Percent Yield 2 Cas 02g 2 CaO If 90 grams of Calcium is allowed to react With 41 grams of Oxygen What is the limiting reagent Calculate theoretical yield of Calcium in grams 1 Convert grams to moles 90g of Ca 1 mole of Ca 401 g of Ca 22 moles of Ca 41g of 02 1 mole of 02 320g of 02 13 moles of 02 Find limiting reagent 22 moles of Ca 1 mole of Ca 2 moles of 02 11 moles of 02 needed to react With Ca 13 moles of 02 2 moles of 02 1 mole of Ca 26 moles of Ca needed limiting reactant Find theoretical yield 22 moles of Ca 2 moles of CaO 2 moles of Ca561g of CaO 1 mole of CaO 12g of CaO Find percent yield only in lab If a chemist carried out this reaction and isolated 116g of CaO yield actual yield theoretical yield100 yield 116g of CaO 12g of CaO 100 967 Molarity problems MolarityM moles of solute liters of solution 1 Calculate molarity of a solution prepared by dissolving 98 moles of solid NaOH in 362L of solution M 98 362L 27molesL 1 You dissolve 1525 g of CuClz in water to make a solution of 225L What is the molarity 1 Find molar mass 6355 23544 13445g mole 2 1525g 1 mole 13445 1134 moles 3 M 1134moles 225L 504 moles liter Identifying types of reactions 1 Synthesis AB AB EX Ca S CaS 1 Decomposition AB AB CaS Ca S 1 Single Displacement A BC AC B CaS02CaOS 1 Double Displacement AB CD AD CB CaS PbO Ca0 PbS 1 Acid Base HA BOH H20 BA HBr NaOH H20 NaBr 1 Redox 2 82032 aq 12aq gt S4062 aq 2139aq 1 Combustion Clng 02 C02 4 H20 Precipitation Reaction Molecular equation 3FeSO4 aq 2Na3PO4aq Fe3PO42 s 3Na2804 aq Complete Ionic Equation 3Fe2 3SO4239 6Na 2PO4339 Fe3PO42 S 6Na 3304239 Net Ionic Equation 3Fe2 2PO4339 Fe3PO42
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