Question 389647: Last one...*smiles*
"Bubble Lights: These old-fashioned lights use the heat from a light bulb to make methylene chloride boil, thus providing bubbles. The company that manufactures these lights can only purchase 100% methylene chloride, but due to the dangerous characteristics of the chemical, they have to dilute it with distilled water to make a 75% methylene chloride solution. Then they add a dye to color the chemical before placing it in the tubes...
A. How much water is needed to dilute 4 gallons of 100% methylene chloride to make the 75% solution?"
I got about 1.333333333333333333 gallons...?
And then...
"B. A gallon of 100% methylene chloride costs $221. Distilled water costs the company $0.17 per gallon. If each bulb holds an ounce of fluid, how much does the company have to charge per bulb to break even?
I wasn't sure if they were just talking about 1 gallon of the 75% solution or the 4 gallons...
So, for the 1 gallon of 75% solution, I got about $1.30...
And for the 4 gallons of 75% solution, I got about $1.60...?
(When I was in middle school, I don't remember ever doing any kind of problems like these...oh my goodness...lol...*smiles*)
Thanks for all of your help! *smiles*
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Bubble Lights: These old-fashioned lights use the heat from a light bulb to make methylene chloride boil, thus providing bubbles. The company that manufactures these lights can only purchase 100% methylene chloride, but due to the dangerous characteristics of the chemical, they have to dilute it with distilled water to make a 75% methylene chloride solution. Then they add a dye to color the chemical before placing it in the tubes...
A. How much water is needed to dilute 4 gallons of 100% methylene chloride to make the 75% solution?"
If 4 gallons is 75%, then the total solution is 4/0.75 = 5.333 gallons
Add 4/3 gallons of water, = 1.333...
I got about 1.333333333333333333 gallons...?
-----------------------
And then...
"B. A gallon of 100% methylene chloride costs $221. Distilled water costs the company $0.17 per gallon. If each bulb holds an ounce of fluid, how much does the company have to charge per bulb to break even?
No density info is given. How many ounces are in a gallon of MCl ?
--------------------
I wasn't sure if they were just talking about 1 gallon of the 75% solution or the 4 gallons...
So, for the 1 gallon of 75% solution, I got about $1.30...
And for the 4 gallons of 75% solution, I got about $1.60...?
|
|
|
