Monday

March 30, 2015

March 30, 2015

Posted by **garrick** on Monday, September 15, 2008 at 9:23pm.

- math -
**Anonymous**, Monday, September 15, 2008 at 9:28pm.5x + 1y = .8(300)

x + y = 300

x = 300 - y

.5(300-y) + 1y = 240

150 - .5y + 1y = 240

1/2y = 90

y = 180 ml

300-180 = x = 120ml

use 120ml 50%

use 180ml 100%

**Answer this Question**

**Related Questions**

algebra 2 - A chemist mixes some 20% acid solution with pure 100% acid to ...

algebra - A chemist mixes some 20% acid solution with pure 100% acid to increase...

Algebra - how much pure acid must be added to 15 ounces of an acid solution ...

Chemistry - Glutamic acid is triprotic amino acid with pKa values of 2.23, 4.42...

Algebra 2 - How much pure acid must be added to 6 milliliters of a 5% acid ...

Algebra 1 - Bunson Burner has 3 liters of a 10% acid solution. How much of pure ...

chemistry - if the pH of a half-neutralized acid solution is 5.4, how would you ...

chemistry - You need to determine the concentration of a sulfuric acid solution ...

Chemistry, pH, Buffers - Please help!! Given this data: mass of unknown acid 1....

Chemistry - Tartaric acid has two acidic (ionizable) hydrogens. The acid is ...