Answered

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 2 % saline solution to produce normal saline?

Sagot :

Mlcparra16id
Let x be the amount of distilled water to be added (in milliliters)

[tex] \frac{2}{100+x} = \frac{9}{1000} \\ 2000=900+9x\\1100=9x\\122.22=x[/tex]

122 milliliters of distilled water must be added