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Author Topic: CHEM AND BIO HELP AND TIPS HERE  (Read 350853 times)

Offline @d!_†oX!©

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Re: ~~~All Chemistry Doubts Here~~~
« Reply #135 on: November 10, 2009, 04:13:08 pm »
sorry i said vaan cuz i was reading smthng else simultaneously..sorry..
By the way Thanks shrey
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Offline ~~~~shreyapril~~~~

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Re: ~~~All Chemistry Doubts Here~~~
« Reply #136 on: November 10, 2009, 04:13:20 pm »
this in not ratio propotion!!
so here you need to take mass of both carbon and WO3!!

where as you have taken 1:3 ratio of molecules!!

got it!!
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Offline eightAs

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Re: ~~~All Chemistry Doubts Here~~~
« Reply #137 on: November 10, 2009, 04:13:30 pm »
Quote from: @d!_†oX!© on November 10, 2009, 04:08:04 pm
1)why 36g of carbon???
2)m not saying the ratio is wrong, wht i am confued about is the fact that less reducing agent is required to reduce a large amount of the substance...
i mean how can only 18g of carbon be used to reduce 116gg of WO3
my question is more practical based than theoretical.
See, the things that actually do the work are molecules. 18g of Carbon contains 3 times more molecules than 116 gms of WO3 does. Three C molecules react with one WiO3. molecule. I hope you get it now.
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Offline @d!_†oX!©

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Re: ~~~All Chemistry Doubts Here~~~
« Reply #138 on: November 10, 2009, 04:14:52 pm »
yeah!!i think i'll have to compromise...cuz no1 actually understood my question...or perhaps m not able to convey exactly what i am confused about....anyways...thanks alot guys...
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Offline @d!_†oX!©

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Re: ~~~All Chemistry Doubts Here~~~
« Reply #139 on: November 10, 2009, 04:15:18 pm »
Quote from: eightAs on November 10, 2009, 04:13:30 pm
See, the things that actually do the work are molecules. 18g of Carbon contains 3 times more molecules than 116 gms of WO3 does. Three C molecules react with one WiO3. molecule. I hope you get it now.
ummm...i think that makes it a bit clearer...Thanks eightas
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Offline Ghost Of Highbury

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Re: ~~~All Chemistry Doubts Here~~~
« Reply #140 on: November 10, 2009, 04:15:44 pm »
exactly. dont get confused by the mass ratio. the msas of C is less than that of WO3, but as eightAs already said, 1 molecule of WO3 reacts with 3 molecules of C!!

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Offline ~~~~shreyapril~~~~

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Re: ~~~All Chemistry Doubts Here~~~
« Reply #141 on: November 10, 2009, 04:15:49 pm »
Quote from: @d!_†oX!© on November 10, 2009, 04:13:08 pm
sorry i said vaan cuz i was reading smthng else simultaneously..sorry..
By the way Thanks shrey

kk!!
np!!
dude tereko kya nahin samjha??
why dont yu ask this to ur teacher??
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Offline @d!_†oX!©

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Re: ~~~All Chemistry Doubts Here~~~
« Reply #142 on: November 10, 2009, 04:16:49 pm »
yaa now that is what m gonna do tom when i go to school.....
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Offline ~~~~shreyapril~~~~

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Re: ~~~All Chemistry Doubts Here~~~
« Reply #143 on: November 10, 2009, 04:17:12 pm »
hamlog ko bhi ans bata!!! :)
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Offline eightAs

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Re: ~~~All Chemistry Doubts Here~~~
« Reply #144 on: November 10, 2009, 04:20:00 pm »
Quote from: ~~~~shreycool~~~~ on November 10, 2009, 04:17:12 pm
hamlog ko bhi ans bata!!! :)
Answer 18 gms hi hai yaar.
« Last Edit: November 10, 2009, 04:24:52 pm by eightAs »
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Offline Ghost Of Highbury

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Re: ~~~All Chemistry Doubts Here~~~
« Reply #145 on: November 10, 2009, 04:21:39 pm »
its 18g
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Offline eightAs

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Re: ~~~All Chemistry Doubts Here~~~
« Reply #146 on: November 10, 2009, 04:24:20 pm »
Quote from: A@di on November 10, 2009, 04:21:39 pm
its 18g
Yeah 116 was in the question sorry. i'll edit my post.
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Offline @d!_†oX!©

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Re: ~~~All Chemistry Doubts Here~~~
« Reply #147 on: November 10, 2009, 04:25:48 pm »
Thanks guys!!!
i dont think there's any need to ask my teacher now..but i'll still do so for complete clarification....
BEST OF LUCK TO U ALL FOR ANY EXAM THAT U HAVE TOM!!!!!!

gud night!!
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Offline ~~~~shreyapril~~~~

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Re: ~~~All Chemistry Doubts Here~~~
« Reply #148 on: November 10, 2009, 04:32:39 pm »
thik hai!!
chal fir!!
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Offline $!$RatJumper$!$

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Re: ~~~All Chemistry Doubts Here~~~
« Reply #149 on: November 10, 2009, 07:33:08 pm »
guys .. what are all the equations u need to know for the production of sulphuric acid?
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