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how to work out molarity?? watch

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    (Original post by XcitingStuart)
    The molarity of what? The ethanol?
    yes
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    (Original post by neverbeejail)
    yes
    This is confusing me sorry. Is that exactly how the question was worded?
    Is it possible to say it word for word?
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    (Original post by XcitingStuart)
    This is confusing me sorry. Is that exactly how the question was worded?
    Is it possible to say it word for word?
    basically im writing a report and i cant have the concentrations i need to convert it to molarity i have differing ethanol concentrations and different water concentrations and in each solution theres 0.5 ml yeast

    i also have NaCLO with mineral water ( differing concentrations again)
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    (Original post by neverbeejail)
    basically im writing a report and i cant have the concentrations i need to convert it to molarity i have differing ethanol concentrations and different water concentrations and in each solution theres 0.5 ml yeast

    i also have NaCLO with mineral water ( differing concentrations again)
    So you have differing concentrations. What are those concentrations exactly how they're worded, like the entire paragraph?
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    (Original post by XcitingStuart)
    So you have differing concentrations. What are those concentrations exactly how they're worded, like the entire paragraph?
    theres no wording like for example 1 ml ethanol 0.5ml mineral water and 0.5ml yeast i need to find out molarity of ethanol does the yeast affect it
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    (Original post by neverbeejail)
    theres no wording like for example 1 ml ethanol 0.5ml mineral water and 0.5ml yeast i need to find out molarity of ethanol does the yeast affect it
    you'd need concentration of ethanol, then do moles of ethanol = concentration x volume (in dm3)
    The problem here is I'm not sure of whether the volumes should be added up, best bet is to not add them up, I think, but there's a high chance that'd be wrong.

    It's either:
    a) volume of ethanol (1 / 100)
    b) volume of solution (1 + 0.5 + 0.5 / 100)

    One of those two, can't remember what to do here.
 
 
 
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