Sunday

April 20, 2014

April 20, 2014

Posted by **steve** on Monday, February 22, 2010 at 9:41am.

- algebra -
**drwls**, Monday, February 22, 2010 at 10:05amLet x be the number of ml that must be added. The amount of acid contained in the mix can be written two ways, and is:

0.15*80 + 0.20x = 0.18*(80 + x)

Solve for x

12 + 0.20x = 14.4 + 0.18x

0.02x = 2.4

x = 120 ml

**Related Questions**

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

algebra word problems - 1) tina has 48 mL of a solution that is 25% acid. how ...

Algebra - 100mL of a solution contains 30 mL of acid; this is called a 30% acid ...

Math - How many milliliters of a 75% acid solution must be added to 90 ml of a ...

math - How many milliliters of a 75% acid solution must be added to 90 ml of a ...

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

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

chemistry - A solution is 40% acetic acid by mass. The density of this solution ...

algebra - How much water mest be added to 6 ounces of a 20% acid solution to ...

algebra 2 - How much of an 18% solution of sulfuric acid should be added to 360 ...