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    Hi I am doing Edexcel GCSE chemistry at the moment. I do not understand why when the amount of hydrochloric acid added to 25cm3 of sodium hydroxide is not the same amount it causes the temperature rise in the reaction to be smaller eg 35cm3 of HCl + 25cm3 of NaOH. Please could someone explain? Any help would be greatly appreciated. Thanks in advance
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    Question as you asked is impossible to answer, as you left important parts of the problem. But I bet you should think in terms of limiting reagents.
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    (Original post by Borek)
    Question as you asked is impossible to answer, as you left important parts of the problem. But I bet you should think in terms of limiting reagents.
    Sorry I've edited it to try and make my question clearer
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    I suppose you know this equation:

    q = mcΔT

    Solve for ΔT.

    You can assume c (specific heat) to be identical for both cases. Compare both experiments. What has changed - q or m? How did it change? How should the ΔT change in such situation?
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    (Original post by Borek)
    I suppose you know this equation:

    q = mcΔT

    Solve for ΔT.

    You can assume c (specific heat) to be identical for both cases. Compare both experiments. What has changed - q or m? How did it change? How should the ΔT change in such situation?
    I've never seen that equation before but I'll have a go at it now. Pathans you for your help
 
 
 
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