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    Calculation mass of alcohol in a solution (volume% is given)

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    A mouthwash contains 22.5% alchohol by mass. If the bottle of mouthwash contains 350 mL, what is the mass, in g, of alcohol?

    Using the (m/v)%= Mass of solute (g)X100
    Volume of solution(mL)

    So far, I have:

    Step 1. 22.5% alcohol= 22.5g alcohol
    _____________
    100 mL solution
    Step 2. 350 mL mouth wash

    and this is where I loose it.

    Step one was given to me by my professor, however, I don't really know how to set up this problem ...... HELP!

    © BrainMass Inc. brainmass.com December 24, 2021, 5:13 pm ad1c9bdddf
    https://brainmass.com/chemistry/stoichiometry/calculation-mass-alcohol-solution-volume-given-36247

    SOLUTION This solution is FREE courtesy of BrainMass!

    If your mouthwash contains 22.5g alcohol in 100 mL solution then:

    350 mL contain : 3.5 * 22.5 g = 78.75 g

    because you have the 3.5 fold amount of mouthwash.

    Thanks for using BrainMass.com. Have a great day.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    © BrainMass Inc. brainmass.com December 24, 2021, 5:13 pm ad1c9bdddf>
    https://brainmass.com/chemistry/stoichiometry/calculation-mass-alcohol-solution-volume-given-36247

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