Saturday

April 18, 2015

April 18, 2015

Posted by **kate** on Wednesday, July 9, 2014 at 11:29pm.

- math -
**Steve**, Wednesday, July 9, 2014 at 11:58pmyou need x ml of solution, and 15-x ml of water (0 mg/ml), so

20x + 0 = 10*15

x = 7.5

Since the concentration is being reduced by a factor of 2, the volume needs to be increased by that factor.

2 * 7.5 = 15

**Answer this Question**

**Related Questions**

math - A patient needs 45% dextrose 100ml The pharmacy has only 70% dextrose ...

Chem - I need help please! You have been given 40ml of a 0.6M solution of NaCl ...

steve for your solution - you need to use 3 solutions of drug H containing ...

math Steve for your solution - 0.224g sample that contained only bacl2 and kbr ...

chemistry - Need help stepping through this for a review. I need to prepare ...

chemistry - A student needed to make 200 ml of 0.1 M naOH. If the stock soluton ...

math - A solution contains 100 mg/mL of a drug and the recommended dose is 50 mg...

math - A solution contains 100 mg/mL of a drug, and the recommended dose is 50 ...

Math - If a mixture of a 6% acid solution with an 11% solution is to be made, ...

Thermodynamics - Streptomycin, an antibiotic, is produced on a large scale in ...