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Posted

I feel like this questions not thread worthy so i'll post it here. When people talk about acid concentration in % i.e. 98% sulphuric acid, how do you work out it's conc in mol dm3?

Posted

That sounds ok moo.. the moon is thousands of times dimmer than the sun and over a much thinner spectrum. So there is either not enough intensity to overcome the backwards reaction or the wrong wavelengths present.

Posted

I would expect there to be a 'critical frequency' situation is this free radical halogenation process.

 

I mean that the photons having energies above a specific limit will succeed in splitting the chlorine molecules.

 

This means that it will be wavelength rather than intensity that determines wether the reaction goes or not. For the moon, it might be very slow, but it might happen.

 

But then, does the moonlight have the required frequencies? It does reflect whitish, so I'd expect it to reflect UV also. Dunno.

Posted
I'm sure neither InfiniteNow nor Moo are being underhanded.

 

But how come they can't be overhanded?

 

Are you trying to hit me with something? Last time I was overhanded, I had bruises for a week! Wait... maybe that was backhanded... :hihi:

Posted
... maybe that was backhanded... :hihi:

InfiniteNow, you weren't trying to use that old "Didn't I meet you in a wonderful wet dream?" line again, were you? :doh: :doh: :doh: :doh: :doh:

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