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    9.This question concerns four solutions, A to D. They were prepared by mixing equal volumes of 0.2 mol dm–3 solutions of two different substances. The substances were

    A HCl(aq) and NaOH(aq)
    B HCl(aq) and NaCl(aq)
    C NH3(aq) and NH4Cl(aq)
    D CH3COOH(aq) and CH3CO2Na(aq)


    c) have a chloride ion concentration of 0.2 mol dm–3.

    The answer is B and I don't understand why it isn't A

    Please please help with this question !
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    (Original post by red122)
    9.This question concerns four solutions, A to D. They were prepared by mixing equal volumes of 0.2 mol dm–3 solutions of two different substances. The substances were

    A HCl(aq) and NaOH(aq)
    B HCl(aq) and NaCl(aq)
    C NH3(aq) and NH4Cl(aq)
    D CH3COOH(aq) and CH3CO2Na(aq)


    c) have a chloride ion concentration of 0.2 mol dm–3.

    The answer is B and I don't understand why it isn't A

    Please please help with this question !
    When you mix equal volumes you double the total volume ...

    .. does that help you to understand?
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    (Original post by charco)
    When you mix equal volumes you double the total volume ...

    .. does that help you to understand?
    A little bit thank you, so does that mean the concentration would double ?
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    (Original post by red122)
    A little bit thank you, so does that mean the concentration would double ?
    Concentration gives the amount of a solute in a given volume.
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    I'm sorry I still don't understand. But thank you for trying 😊


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