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Subject:
Chemistry Homework Question
Category: Science > Chemistry Asked by: gotmike-ga List Price: $3.00 |
Posted:
18 Apr 2005 19:01 PDT
Expires: 18 May 2005 19:01 PDT Question ID: 511133 |
I am having problems finding the mass of acrylonitrile, and the mass of water, produced from a mixture of 1.15 kg of propylene, 1.90 kg of ammonia, and 2.32 kg of oxygen. 2C3H6 + 2NH3 + 3O2 --> 2C3H3N + 6H20 I am looking for someone who can explain the steps of aproaching the answer and the correct answer and what I may have done wronge when I got the answer 874.56. |
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There is no answer at this time. |
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Subject:
Re: Chemistry Homework Question
From: xarqi-ga on 19 Apr 2005 02:02 PDT |
OK - first check the equation is balanced - it is. Now get some MW figures: propylene = 42.08; ammonia = 17.03; oxygen = 16.00; acrylonitrile = 53.06; water = 18.02 We have 1150/42.08 = 27.33 mol of propylene, 1900/17.03 = 111.57 mol of ammonia, and 2320/16.00 = 145.00 mol of oxygen available to react. Clearly the propylene is the limiting reactant. 27.33 mol of propylene will produce 27.33 mol of acryonitrile with a mass of 27.33 x 53.06 = 1450g, and 27.33 x 3 = 81.99 mol of water with a mass of 81.99 x 18.02 = 1477g A reality check shows we are getting about 2900g of product from 5370g of material, and some were in considerable excess, so the answer is not obviously wrong. I can't say where you went wrong. |
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