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toxin
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[*] posted on 8-10-2005 at 06:05
2 questions


Is this considered to be an empirical formula PtCl2(NH3)2, I was thinking you could put it as Pt1/2Cl(NH3) ?

When balancing a chemical equation can you put fractions as coeficients ?
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kazaa81
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[*] posted on 8-10-2005 at 07:30


You can put fractions, but it's always better to double (mean as maximize) the reagents coeficients until product's coeficients can be write as natural numbers.
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toxin
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[*] posted on 8-10-2005 at 07:37


which is the correct balanced equation for the following decomposition reaction ?

H2O2(l) ----> H2O(l) + O2(g)

2H2O2(l) ----> 2H2O(l) + O2(g) or

H2O2(l) ----> H2O(l) + (1/2)O2(g)

[Edited on 8-10-2005 by toxin]
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vulture
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[*] posted on 8-10-2005 at 07:46


Ahem...Where's your effort? This is not a homework processing machine. DIY



One shouldn't accept or resort to the mutilation of science to appease the mentally impaired.
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chromium
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[*] posted on 8-10-2005 at 07:46


First is wrong, others are ok but fractions as coeficents are are often regarded as bad taste.
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praseodym
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[*] posted on 8-10-2005 at 08:02


Quote:
Originally posted by toxin
Is this considered to be an empirical formula PtCl2(NH3)2, I was thinking you could put it as Pt1/2Cl(NH3) ?

These 2 formulae do not seem to be referring to the same compound. The number of moles of each element present in the compounds does not seem to balance out.
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Quibbler
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[*] posted on 12-10-2005 at 04:24


I think there is a subtle difference between Pt½ and ½H2 because you can get half a H2 but not half a platinum. BTW cis platin (PtCl2(NH3)2) have you seen the LD 50 of that (more toxic than HCN)! and its used to "treat" cancer.
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