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Topic: binary salt  (Read 5842 times)

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Offline gloinddark

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binary salt
« on: March 21, 2009, 08:55:08 AM »
when you add sodium hydroxide solution to copper(II) sulfate you get a binary salt: Cu(OH)2CuSO4, and aqueous Na2SO4. can you please tell me why the binary salt forms? thanks :)
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Offline Borek

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Re: binary salt
« Reply #1 on: March 21, 2009, 10:20:08 AM »
I am not sure that's what will really happen. Perhaps if you select proper concentrations and temperature, but I would rather expect just copper hydroxide precipitation.

As to the question 'why' - there is always one answer. Product is either thermodynamically or kinetically favored.
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Offline gloinddark

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Re: binary salt
« Reply #2 on: March 21, 2009, 10:34:30 AM »
thanks for your answer Borek, it is sufficient for my study.

Just in case you want to know, concentrations used were 0.1M for both copper(II) sulfate and sodium hydroxide. experiment was carried out at room temperature.  the equation for the reaction was provided by lecturers, so hopefully it is right.
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