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## anonymous one year ago HELP please :) A patient requires an IV of 0.9% saline solution, also known as normal saline solution. How much distilled water, to the nearest milliliter, must be added to 100 milliliters of a 6 % saline solution to produce normal saline?

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1. anonymous

:)

2. madhu.mukherjee.946

:)

3. anonymous

:(

4. madhu.mukherjee.946

@Rushwr @ganeshie8

5. madhu.mukherjee.946

wait @TRICIACOLLIN i'm trying to help u

6. anonymous

Thanks... :))) go on. i thought i was snobbed. hihi

7. madhu.mukherjee.946

@Abhisar @aaronq

8. madhu.mukherjee.946

@chmvijay

9. Abhisar

x % of a saline solution means that x grams of salts are dissolved in 100 ml of water.

10. madhu.mukherjee.946

okay but pls solve this problem

11. Abhisar

Do you know the answer?

12. anonymous

sadly no :(

13. Abhisar

Ok, no probs...just wanted to check.

14. Abhisar

We can use, Initial volume $$\times$$ Initial concentration = Final volume $$\times$$ Final concentration

15. madhu.mukherjee.946

then

16. Abhisar

Consider you need to add x ml of water then you can write $$\sf 0.06\times 100=0.009 \times (100+x)$$ Solve for x

17. Abhisar

I'll suggest you to cross check it cz my physical chem is rusted ...

18. madhu.mukherjee.946

is the answer 566.67 ml

19. anonymous

yes.. thank you! :)))) to both of you :)))

20. anonymous

A quadratic equation with real coefficients and leading coefficient 1, has x = -bi as a root. Write the equation in general form. :))

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