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Lab Math-Dilutions

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You have 1.50mL of a urine specimen. The assay you are about to perform requires a 1/25 dilution of this specimen. How much water must be added to the specimen to achieve this dilution?

I know this is simple but I am not coming up with the right answer.

Thank you to whoever can help!!!

  • Lab Math-Dilutions - ,

    Look at iat this way.
    1 mL sample + 24 mL H2O
    2 mL sample + 48 mL H2O
    So 1.5 + (24+12) mL H2O

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