SOLUTION: a chemist needs 110 milliliters of a 46% solution but has only 40% and 73% solutions available. Find how many mililiters of each that should be mixed to get the desired solution.
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Question 346125: a chemist needs 110 milliliters of a 46% solution but has only 40% and 73% solutions available. Find how many mililiters of each that should be mixed to get the desired solution. Answer by Fombitz(32388) (Show Source):
You can put this solution on YOUR website! Let be the amount of 40% solution.
Let be the amount of 73% solution.
.
.
Total volume equation:
1.
.
.
Concentration equation:
2.
From eq. 1,
Substitute into eq. 2, ml
Then from eq. 1, ml
