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Topic: Help needed with re-arranging formula question from Acer Gamsat practise  (Read 1783 times)

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Offline jnrpoppins28

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Help needed with re-arranging formula question from Acer Gamsat practise
« on: September 07, 2013, 07:57:02 AM »
Can anybody explain how to work out the answer to this question?
Thank you in advance
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Offline sjb

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Re: Help needed with re-arranging formula question from Acer Gamsat practise
« Reply #1 on: September 07, 2013, 08:22:51 AM »
Can you write the half equations for the reactions taking place?
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Offline jnrpoppins28

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Re: Help needed with re-arranging formula question from Acer Gamsat practise
« Reply #2 on: September 07, 2013, 08:25:54 AM »
I've worked out that n is 2, i just don't know how to rearrange the formula
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Offline Borek

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Re: Help needed with re-arranging formula question from Acer Gamsat practise
« Reply #3 on: September 07, 2013, 10:03:37 AM »
Convert it to

[tex]a = \log_{10} b[/tex]

then use basic properties of the logarithmic function.
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