A sodium chloride IV fluid contains 154 mEq of Na+ per liter of solution. If a patient receives exactly 500 mL of the IV, how many moles of Na are given?

Expert Answers

An illustration of the letter 'A' in a speech bubbles

An equivalent is described as an amount of substance that in an acid base reaction reacts with or supplies 1 mole of H+ ions or in a redox reaction supplies or reacts with 1 mole of electrons.

For Na+, as 1 mole of Na+ reacts with 1 mole of electrons in a redox reaction, one equivalent of Na+ is one mole of Na+.

The patient receives an IV fluid that contains 154 mEq of Na+ per liter of the solution and is given 500 mL of the solution.

The mEq of Na+ that the patient receives is 154*0.5 = 77 mEq.

77 mEq of Na+ is 77*10^-3 mole. The patient is given 77*10^-3 mole of Na+.


Approved by eNotes Editorial Team
Soaring plane image

We’ll help your grades soar

Start your 48-hour free trial and unlock all the summaries, Q&A, and analyses you need to get better grades now.

  • 30,000+ book summaries
  • 20% study tools discount
  • Ad-free content
  • PDF downloads
  • 300,000+ answers
  • 5-star customer support
Start your 48-Hour Free Trial