SOLUTION: I am having trouble with setting up this problem How much NaCl would you need to add to 2 liters of water to make saline? (Normal Saline is 0.9% w/v NaCl)

SOLUTION: I am having trouble with setting up this problem How much NaCl would you need to add to 2 liters of water to make saline? (Normal Saline is 0.9% w/v NaCl)

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Question 463459: I am having trouble with setting up this problem
How much NaCl would you need to add to 2 liters of water to make saline? (Normal Saline is 0.9% w/v NaCl)
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
.009(2+x)=x
.018+.009x=x
.991x=.018
x=.018/.991=.0181634712 liters of saline needed..
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