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Topic: balancing equations for precipitates  (Read 4652 times)

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Offline WHITECHIC9

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balancing equations for precipitates
« on: November 24, 2008, 03:18:33 PM »
Hi, i had a lab where we have to give the balanced equation for magnesium ion which precipitated out from adding Na2HPO4 adn then we added NaOH to make it basic. Is NaOH included in the equation? PLease help me with the products!
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Offline AWK

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Re: balancing equations for precipitates
« Reply #1 on: November 25, 2008, 01:38:34 AM »
Na2HPO4 + NaOH =
then
Mg(NO3)2+ Na3PO4
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Offline NP1957

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Re: balancing equations for precipitates
« Reply #2 on: November 25, 2008, 03:57:38 AM »
I am just wondering where nitrate is from?
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Offline AWK

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Re: balancing equations for precipitates
« Reply #3 on: November 25, 2008, 08:16:37 AM »
Nitrates are always used in qualitative analysis.
Of course you can always use only Mg2+ but then use PO43- instead of salt
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