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    How do you test for an acid solution without the use of indicators? Is it something to do with hydrogen ions, i have no idea
    Also, how can you calculate ralative formula mass from a titration?
    Pleeeeeeease help anyone!
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    To test for acid you could use a pH meter (consists of a probe you add to the solution then it gives you a pH reading)

    For relative formula mass ... um not sure, what titration is this and what information are you told? You can work out the concentration of the solution, and if it was made up by dissolving a known mass of solid you therefore know how many moles are in that mass of solid so you can work out the formula mass from that.
    But are you given that information?
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    could also test for an acid by adding a metal (such as magnesium) and looking for bubbles (of hydrogen - could then test the gas using the "squeaky pop test")
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    you have an acid salt MHSO4 where M is sodium OR potassium.
    -Describe 2 chemical tests (apart from use of indicators) by which you could demonstrate that an aqueous solution of MHSO4 is acidic.
    - Plan a titration which you could determine the relative formula mass of MHSO4 in order to deduce whether M is sodium or potassium.

    :confused:

    The 'squeeky' pop test is a good idea though, thanks...
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    right.
    for the tests, I would add a metal and then a carbonate (giving off CO2 - test with limewater)

    For the titration:

    weigh out a known mass of the salt and dissolve in a known volume of water.
    Then titrate with an alkali of known concentration (eg NaOH) from this you can work out the concentration of the acid you made up.
    If you know the concentration and volume, then work out the number of moles in the solution .... this is also the number of moles in the salt you weighed out.

    So you know the mass and moles so you can work out the formula mass from this information.
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    thank you soooooooooooooo much
 
 
 

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