## 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

:)

:)

3. anonymous

:(

@Rushwr @ganeshie8

wait @TRICIACOLLIN i'm trying to help u

6. anonymous

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

@Abhisar @aaronq

@chmvijay

9. Abhisar

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

okay but pls solve this problem

11. Abhisar

Do you know the answer?

12. anonymous

13. Abhisar

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

14. Abhisar

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

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 ...

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. :))