CH4(3)Sep17Fa08a - 3 produced. Aluminum hydroxide reacts...

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CHEM 109 General Chemistry University of Nebraska FALL 2008 Wednesday 17 September 2008 ANNOUNCEMENTS:
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Suppose the reaction: _Ca 3 (PO 4 ) 2 + _H 2 SO 4 _CaSO 4 + _H 3 PO 4 was carried out starting with 75.0 g of H 2 SO 4 . How much phosphoric acid can be produced? If 43.7 g H 3 PO 4 were actually produced, what is the percent yield?
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The Limiting Reactant Limiting reactant – determines or limits the amount of ______________ formed. Other starting materials are in excess .
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N 2 + 3 H 2 2 NH 3 If we start with 84.0 g N 2 and 24.2 g of H 2 , what mass of ammonia can be prepared? 1. Convert mass of each reactant to moles using ____________. 1. Identify the limiting reactant by multiplying moles of each reactant by the _________ from the balanced equation. 3. The reactant producing the_________________ of desired product will be the limiting reactant . Use the moles of LR to calculate the mass of the NH
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Unformatted text preview: 3 produced. Aluminum hydroxide reacts with sulfuric acid as follows: 2 Al(OH) 3 ( s ) + 3 H 2 SO 4 ( aq ) → Al 2 (SO 4 ) 3 ( aq ) + 6 H 2 O( l ) (78.00 g/mol) (98.08 g/mol) (342.15 g/mol) (18.01 g/mol) Which reagent is the limiting reactant when 35.10 g Al(OH) 3 and 53.95 g H 2 SO 4 are allowed to react? How many grams of Al 2 (SO 4 ) 3 can form under these conditions? Benzyl acetate is one active component in oil of jasmine which is used in cosmetics. The compound is commonly synthesized from benzyl alcohol and acetic acid in the reaction shown below. C 7 H 8 O + CH 3 COOH C 9 H 10 O 2 + H 2 O What is the percent yield of benzyl acetate if Estee Lauder was able to synthesize 12.31 kg of the compound from 17.5 kg of benzyl alcohol and 11.5 kg of acetic acid? Benzyl acetate...
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This note was uploaded on 09/22/2009 for the course CHEM 109 taught by Professor Hart during the Spring '09 term at Nebraska Christian.

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CH4(3)Sep17Fa08a - 3 produced. Aluminum hydroxide reacts...

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