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    Anyone got any questions or revision tips for the AQA CHEM 4 next Tuesday?
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    Actually yes! I'm not entirely sure how basic buffers would be tested. I haven't seen questions on it, and to be honest I don't completely get what they're made from. Apart from ammonia and ammonium chloride, I've memorized that but I don't get how it forms a buffer, and what reacts with what etc. I get the acidic buffers though.
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    GUYS SIGN THE PETITION AND SPREAD IT AROUND
    http://www.ipetitions.com/petition/l...ry-unit-4-2016
 
 
 
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