| Please
select section below... |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
|
|
 |
| MIXTURE
PROBLEMS |
|
Think: Beetlejuice!
sulfuric
acid+sulfuric acid=sulfuric acid
30% ( ) + 45% ( ) =
40% ( )
Notice the final percentage must be between 30%
and 45%.
First, plug
in the 20 ounces into the equation:
• 30% ( ) + 45% ( ) =
40% (20)
Next, let x represent the number of ounces
of the 30% solution of sulfuric acid.
Then 20 – x represents the number of ounces of the 45% solution
of sulfuric acid.
Be careful here most students are tempted
to put x – 20. A safety
check is to add the two volumes:
• x + 20 –x and that should =
20
|
|
|
|
|
|
