SOLUTION: For an experiment, a student requires 200 milliliters of a solution that is 12 % NaCl (sodium chloride). The storeroom has only solutions that are 15 % NaCl and 5 % NaCl. How many
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Question 1047076: For an experiment, a student requires 200 milliliters of a solution that is 12 % NaCl (sodium chloride). The storeroom has only solutions that are 15 % NaCl and 5 % NaCl. How many milliliters of each available solution should be mixed to get 200 milliliters of 12 % NaCl? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = ml of 5% NaCl solution
Let = ml of 15% NaCl solution
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(1)
(2)
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(2)
(2)
(2)
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Subtract (1) from (2)
(2)
(1)
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and
(1)
(1)
(1)
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60 ml of 5% NaCl solution is needed
140 ml of 15% NaCl solution is needed
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check:
(2)
(2)
(2)
(2)
(2)
OK
