Chemistry question help?

A chemist adds 0.15L of a 0.172 mol/L potassium permanganate solution (KMnO4) to a reaction flask. Calculate the millimoles of potassium permanganate the chemist has added to the flask. Be sure your answer has the correct number of significant digits.

??? = mmol

2 Answers

  • Gorgia
    Lv 4
    3 months ago

    You do something and something else. Boom 💥 

  • Jim
    Lv 7
    3 months ago

    Using Unit Cancellation (Dimensional Analysis or Unit Factor) method:

    0.15 L (0.127 mol/1 L) (1000mmol/1 mol) = 19.05mmol

    Now round to 2 sigfigs (since 0.15 has only 2): 19. mmol

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