math

posted by .

what is procentage strength of a mixture made from 250 ml of witch hazel containing 16% alcohol, 150 ml of 90% alcohol and 450 ml of distilled water?

  • math -

    fraction alcohol=(.16*250+.9*150)/(450+150+250)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math please

    A 75% alcohol concentration mixture of water and alcohol was made by mixing 30ml of pure alcohol with 150 ml of original mixture of water and alcohol. what was the alcohol concentration of the orignal mixture The amount of water has …
  2. Math

    180 ml of a mixture of water and alcohol with 90% alcohol concentration is mixed with 70 ml of pure water. what is the alcohol concentration of the new mixture?
  3. chemistry

    what is the percentage of alcohol in a misture containing 1500 mo of witch hazel (14% alcohlol), 2000 ml of glycerin, and 5000 mls of 50% alcohol?
  4. math

    A bottle containing 10 liters of alcohol one liter of alcohol is removed and replaced with water. After a liter of the mixture was removed and replaced with water, the operation being carried out 7 times in total. Then that amount …
  5. math

    A bottle containing 10 liters of alcohol one liter of alcohol is removed and replaced with water. After a liter of the mixture was removed and replaced with water, the operation being carried out 7 times in total. Then that amount …
  6. math

    Help please A bottle containing 10 liters of alcohol one liter of alcohol is removed and replaced with water. After a liter of the mixture was removed and replaced with water, the operation being carried out 7 times in total. Then …
  7. Maths

    How much pure alcohol has to be added to 400ml of a solution containing 15% alcohol to change the concentration of alcohol in the mixture to 32%?
  8. Math

    A 75% alcohol concentration mixture of water and alcohol and was made by mixing 30 ml of pure alcohol with 150 ml of original mixture
  9. Math Help needed quickly

    In a mixture of alcohol and water the concentration of alcohol is 55%. Water is 20 ml less than alcohol in the mixture. There should be _____ ml of alcohol and ____ ml of water to make up ____ ml of mixture
  10. into to algebra

    You need a 45% alcohol solution. On hand, you have a 150 mL of a 15% alcohol mixture. You also have 70% alcohol mixture. How much of the 70% mixture will you need to add to obtain the desired solution?

More Similar Questions