Anonymous
Anonymous asked in Science & MathematicsMathematics · 4 weeks ago

You’ve poured 200 grams of a 2% (by mass) alcohol solution into a large glass container. You have plenty of 8% alcohol solution. ?

You’ve poured 200 grams of a 2% (by mass) alcohol solution into a large glass container. You have plenty of 8% alcohol solution. You need to make some 5.6% alcohol solution. How many grams of 8% solution do you have to add to the glass container to end up with a 5.6% alcohol solution?:

You need to add ___ grams of 8% solution to end up with a 5.6% alcohol solution.

1 Answer

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  • Bryce
    Lv 7
    4 weeks ago

    200*0.02 + 0.08x= 0.056(200 + x)

    4 + 0.08x= 11.2 + 0.056x

    0.024x= 7.2; x= 300 g

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