<![CDATA[Math Is Fun Forum / mixture problem]]> 2013-01-18T11:00:19Z FluxBB http://www.mathisfunforum.com/viewtopic.php?id=18834 <![CDATA[Re: mixture problem]]> Hi;

K = the amount of KCN
w = the amount of water
a = amount of water added

K = 2 / 5

w = 18 / 5

a = 2

You should be able to answer a and b now.

By the way, KCN is the salt of a strong base KOH and a weak acid HCN therefore is it a base not an acid.

http://www.mathisfunforum.com/profile.php?id=33790 2013-01-18T11:00:19Z http://www.mathisfunforum.com/viewtopic.php?pid=249106#p249106
<![CDATA[mixture problem]]> HELP!!!
A 90% KCN solution is diluted with water to make a solution of 60% acid. When 3 gallons of water is added to dilute it again, the solution becomes 40% acid.
a. how much water was added to the solution on the first instance?
b. what was the original volume of the 90% acid solution?

2013-01-18T10:13:03Z http://www.mathisfunforum.com/viewtopic.php?pid=249105#p249105