SOLUTION: In Chemistry Class, you mixed a 3% saline solution and a 25% saline solution that resulted in 50 ml of 20% saline solution.
How much of the 3% saline solution did you use?
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How much of the 3% saline solution did you use?
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Question 1007657: In Chemistry Class, you mixed a 3% saline solution and a 25% saline solution that resulted in 50 ml of 20% saline solution.
How much of the 3% saline solution did you use?
You can put this solution on YOUR website! Let x be the amount of 3% solution.
Thus 50-x is the amount of 25% solution.
The set up looks like this:
.03x + .25(50-x) = .20(50)
.03x + 12.5 - .25x = 10
-.22x = -2.5
x = 2.5/.22 = 11.36 ml of 3% solution
