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Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: akrnfl on November 11, 2006, 01:26:53 PM

Title: Why it is Cl (not Cl2) ?
Post by: akrnfl on November 11, 2006, 01:26:53 PM
3HCl + HNO3 --------> NOCl + 2H2O + 2Cl


 If anybody know why it is Cl (not Cl2) in this reaction? What does Cl mean?
 
 Also I want to know how aqua regia solves Au?
Title: Re: Why it is Cl (not Cl2) ?
Post by: DevaDevil on November 11, 2006, 02:40:39 PM
Au (s) + 3 NO3- (aq) + 6 H+ (aq) ? Au3+ (aq) + 3 NO2 (g) + 3 H2O (l)
Au3+ (aq) + 4 Cl- (aq) ? AuCl4- (aq)

And you are correct, it must be Cl2

All very well explained here (http://en.wikipedia.org/wiki/Aqua_regia), google usually helps ;)
Title: Re: Why it is Cl (not Cl2) ?
Post by: Alberto_Kravina on November 11, 2006, 03:50:05 PM
If the Chlorine is in statu nascendi you can write it as "Cl".
Title: Re: Why it is Cl (not Cl2) ?
Post by: billnotgatez on November 12, 2006, 11:33:33 AM
in statu nascendi
"in the state of being born"
Just as something is about to begin.

The above is for those who are Latin challenged like me.