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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: physical chemistry
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[Post New]31 Dec 2006 12:02:36 IST
    Subject: physical chemistry
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parag28289 (15)

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calculate the weight of 60 percent H2SO4  required to decompose 50g of chalk.
success= lim {efforts}
hardwork-> infinity
    
[Post New]31 Dec 2006 12:14:25 IST
    Subject: Re:physical chemistry
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rahul_c (188)

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CaCo3 + H2So4= CaSo4+CO2+H2O
100g of chalk neutalises 98 g of acid
50g  of chalk neutalises 49 g of acid
 
 
as the acid is 60% =49*100/60=81.67g
The yardstick of human intelligence is the ability to overcome the last fallacy
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[Post New]1 Jan 2007 18:46:05 IST
    Subject: physical chemistry
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smartgoels (6)

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well this time rahul i do agreee with you
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