Monday

January 26, 2015

January 26, 2015

Posted by **Carllll needs help** on Friday, April 13, 2007 at 6:02pm.

The amount of water has not changed.

Since the final solution is 180 ml and is 75% alcohol, 25% or 45 ml must be water.

So that 45 ml of water must have been in the original 150 ml of the mixture which means 105 ml must have been alcohol

then the alcohol concentration of the original mixture was 105/150 or 70%

**Answer this Question**

**Related Questions**

Math - 180 ml of a mixture of water and alcohol with 90% alcohol concentration ...

algebra - A certain car's cooling system has an 8-qt capacity and is filled with...

chemistry - You need 715 mL of a 45% alcohol solution. On hand, you have a 55% ...

math - what is procentage strength of a mixture made from 250 ml of witch hazel ...

math - in the lab, tom has two solutions that contain alcohol and is mixing them...

Math - 1. In the lab, Deon has two solutions that contain alcohol and is mixing ...

math - An alcohol solution consists of 6 gallons of pure water and x gallons of ...

math - An alcohol solution consists of 6 gallons of pure water and x gallons of ...

INTRO TO PHYSICS - I NEED YOUR HELP PLEASE,THIS IS A MARK I DONT WANA LOOSE IT ...

INTRODUCTION TO PHYSICS - Question A mixture of alcohol and water has the ...