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    If given the formula to find V1, why are the numbers on the right hand side divided by that on the left (1000) and not the other way around? I really struggle rearranging equations for some reason, I just need a simple way of remembering

    C1V1 = C2V2

    1000 x V1 = 20 x 200
    V1 = 20 x 200/1000
    V1 = 4000/1000
    V1 = 4µl
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    (Original post by mimajones)
    If given the formula to find V1, why are the numbers on the right hand side divided by that on the left (1000) and not the other way around? I really struggle rearranging equations for some reason, I just need a simple way of remembering

    C1V1 = C2V2

    1000 x V1 = 20 x 200
    V1 = 20 x 200/1000
    V1 = 4000/1000
    V1 = 4µl
    Since you've looking for the value of V1, you want to isolate it on one side of the equation. So, get rid of the 1000 on the left, by dividing the whole equation through by 1000,
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    (Original post by ghostwalker)
    Since you've looking for the value of V1, you want to isolate it on one side of the equation. So, get rid of the 1000 on the left, by dividing the whole equation through by 1000,
    Thank you!
    It seems so simple now, I just couldn't get my head around it.
 
 
 
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