ch10_notes_ex11_3

ch10_notes_ex11_3 - Example discussed in class but not...

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Example discussed in class but not completed (you were supposed to complete it). 2 What volume of N (g) at STP would be produced by the rx. of 0.86 g of NO(g)? 22 2 2 NO(g) + 2 H (g) ------> 2 H O(g) + N (g) 1) Method 1 2 Do a gram to mole stoichiometry problem to convert grams of NO to moles of N and then use 2 the IGL to calc. the volume of N . 2 1 mol NO 1 mol N ? mol N = 0.86 g NO x ---------------- x ------------- = 0.01 4 33 mol N 30.01 g NO 2 mol NO 2 Use IGL to calculate the vol. of N 2 nRT (0.01 4 33 mol N ) (0.0821 L C atm/mol C K)(273.15 K) V = ------- = ----------------------------------------------------------------- P (1 atm) 2 = 0.3 2 13 L = 0.32 L (3 2 0 mL) of N 2) Method 2 Convert the grams of NO to moles, use the IGL to get the vol. of NO, then do a vol. to vol. stoichiometry problem. 1 mol NO ? mol NO = 0.86 g NO x ---------------- = 0.02 8 65 mol NO 30.01 g NO Use IGL to calculate the vol. of NO
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ch10_notes_ex11_3 - Example discussed in class but not...

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