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Topic: balance equations  (Read 4501 times)

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Offline abcc

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balance equations
« on: November 19, 2006, 06:31:22 AM »
balance equations for below reactions:
1) K + Na + (18-CROWN-6)
2) BF3 and excess NaF in acidic solution

can anyone help :-[
thx

Offline mdlhvn

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Re: balance equations
« Reply #1 on: November 19, 2006, 09:03:00 AM »
Quite difficult questions
1) I've only known that CROWN compounds is the carrier of K+ and Na+ through cell membranes. It is recommended that one Crown molacule carries one K or Na ion

2) It is a Lewis acid-base reaction

BF3 + NaF--------> Na[BF4]

Offline abcc

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Re: balance equations
« Reply #2 on: November 19, 2006, 09:17:52 PM »
Quite difficult questions
1) I've only known that CROWN compounds is the carrier of K+ and Na+ through cell membranes. It is recommended that one Crown molacule carries one K or Na ion

2) It is a Lewis acid-base reaction

BF3 + NaF--------> Na[BF4]
THX ;)

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