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Topic: How do i solve this and whats the right answer {stoichiometry}  (Read 2474 times)

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Offline anakhan

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How do i solve this and whats the right answer {stoichiometry}
« on: November 18, 2012, 02:55:19 PM »
Titanium (Ti) can be produced by the reaction of metallic sodium (Na) with titanium tetrachloride vapor (TiCl4). The byproduct of this reaction is sodium chloride (NaCl). Calculate the amount of titanium produced (in kg) when a reactor is charged with 67.0 kg of TiCl4 and 17.0 kg of Na.
« Last Edit: November 18, 2012, 04:04:43 PM by Dan »
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Offline Borek

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Re: How do i solve this and whats the right answer
« Reply #1 on: November 18, 2012, 03:01:11 PM »
You have to show your attempts at solving the question to receive help. This is a forum policy.
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Offline anakhan

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Re: How do i solve this and whats the right answer
« Reply #2 on: November 18, 2012, 03:05:27 PM »
4(Na)=22.99*4=91.96

4(NaCl)=141.80

Ti=47.867

TiCl4=189.667

17kgNa=(1000g/1kg)(1molNa/91.96Na)=184.86 mols Na(1mol Ti/4mols Na)(47.867grams Ti/ 1mol Ti)(1kg Ti/1000gTi)=2.21 kg Ti

67 KgTiCl4=(1000g/1kg)(1mol TiCl4/189.667g)=353.2507mols TiCl4(1molTi/1mol TiCl4)(47.867grams Ti/1molTi)(ikg/1000g Ti)=16.9 kg Ti
I am confused on how to do the next steps
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Offline ramboacid

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Re: How do i solve this and whats the right answer {stoichiometry}
« Reply #3 on: November 18, 2012, 04:34:14 PM »
Which reactant is consumed first, TiCl4 or Na?
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Offline DrCMS

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Re: How do i solve this and whats the right answer
« Reply #4 on: November 18, 2012, 05:23:10 PM »
Quote from: anakhan on November 18, 2012, 03:05:27 PM
17kgNa=(1000g/1kg)(1molNa/91.96Na)=184.86 mols Na(1mol Ti/4mols Na)(47.867grams Ti/ 1mol Ti)(1kg Ti/1000gTi)=2.21 kg Ti

67 KgTiCl4=(1000g/1kg)(1mol TiCl4/189.667g)=353.2507mols TiCl4(1molTi/1mol TiCl4)(47.867grams Ti/1molTi)(ikg/1000g Ti)=16.9 kg Ti

Neither of these numbers is the correct answer.
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Offline Hunter2

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Re: How do i solve this and whats the right answer {stoichiometry}
« Reply #5 on: November 19, 2012, 06:28:59 AM »
First write down the chemical equation. Then calculate the moles and check what chemical is consumed  first, what ramboacid already said. The Sodium value was correct, but you did  a mistake to calculate the Titanium. Also calculate how much titanium chloride you need.
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