SOLUTION: Working on Chemistry homework. Could not understand this problem in class, still don't understand. "The density of an antifreeze soltuion measured .78g/ml. The solution was a mixtu

Question 161672: Working on Chemistry homework. Could not understand this problem in class, still don't understand. "The density of an antifreeze soltuion measured .78g/ml. The solution was a mixture of 40% water and 60% antifreeze compound. How many g of antifreeze compound are necessary to prepare 80.0 mL of antifreeze solution?" I tried setting up my equation a couple different ways and I am sure I did not get the right answer. I got 104 g/Antifreeze. Please help me figure out how to set up this equation!
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
total mass of solution is 80(.78) or 62.4g

BY VOLUME
40% of 80 ml is 32 ml __ water is 1g/ml __ so 32g of water

62.4-32 or 30.4g of antifreeze

BY WEIGHT
60% of 62.4 is 37.4g of antifreeze
RELATED QUESTIONS
Hi- my class is working on Equestions with Variables/ Decimals/ Fractions. I honestly do... (answered by checkley71)

I have this problem in my textbook and I have been struggling to find a way to solve it,... (answered by Theo)

Let n∈N. Since ≡n is an equivalence relation on Z. The set of ≡n equivalence... (answered by ikleyn)

I am trying to help my son with his homework but the book does not show an example for... (answered by Earlsdon,khloe)

What is the equation of a horizontal line that passes through the point at (-2,-3)? I... (answered by Earlsdon)

What is the equation of a horizontal line that passes through the point at (-2,-3)? I... (answered by jim_thompson5910)

a vending machine contains 255 coins which are made up of nickels, dimes and quarters... (answered by solver91311)

Don't understand how the answer to this problem is 15. csc(arctan(square root... (answered by Alan3354,math_tutor2020,MathTherapy)

I know this question has appeared before on here and it's kind of been semi-answered but... (answered by Theo)