Question

In: Chemistry

How many grams of salt are mixed into a 500-mL IV NS bag?


IV bags containa solution of sodium chloride called NS, or normal saline, which is 0.9%(m/v). How many grams of salt are mixed into a 500-mL IV NS bag? 

4.5g 

0.45 g 

0.045 g 

450 g 

4500 g 

0.0045 g

Solutions

Expert Solution

%(m/v) = 0.9 %

Volume of solution = 500 mL

Use:

%(m/v) = mass of salt * 100 / Volume of solution

0.9 = mass of salt * 100 / 500

mass of salt = 4.5 g

Answer: 4.5 g

queen_honey_blossom answered 2 years ago
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