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    • Thread Starter

    I was stuck on some questions from our practical:

    why do we leave the pipette to empty under gravity?
    why do we continuously swirl the flask ?
    why do we record the volume to the nearest 0.05cm^3 ?
    why do we need to rinse the beaker 2 or 3 times with small amounts rather than once with a bigger amount?
Is the Big Bang theory correct?

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