Calculate NaCl to Make Isotonic Solution

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Discussion Overview

The discussion revolves around calculating the amount of NaCl needed to create an isotonic solution in 1L of water. It includes aspects of homework problem-solving and the definition of isotonic solutions.

Discussion Character

  • Homework-related
  • Debate/contested

Main Points Raised

  • One participant asks how many grams of NaCl are needed for an isotonic solution, providing a formula for molarity.
  • Another participant questions the definition of "isotonic."
  • A participant suggests that approximately 9 grams of NaCl is needed, but notes ambiguity regarding the exact amount.
  • There is a humorous reference to a fictional scenario involving Mark Wahlberg and IV solutions, which introduces a casual tone to the discussion.
  • One participant challenges the previous claim about the amount of NaCl needed, indicating disagreement.
  • A later reply confirms the 9 grams suggestion without further elaboration.

Areas of Agreement / Disagreement

There is no clear consensus on the exact amount of NaCl required, with some participants suggesting 9 grams while others express disagreement or uncertainty.

Contextual Notes

The discussion lacks clarity on the definition of isotonic and the specific conditions under which the calculations are made, such as temperature or the intended use of the solution.

crazyweird3
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Homework Statement


How many grams of NaCl should be added to 1L of water to make an isotonic solution?


Homework Equations


Molarity=gram/liter


The Attempt at a Solution


1L of water has 1000g/L= 55.5 Moles.
 
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What "isotonic" means?

--
methods
 
The answer is 9, more or less, the part relating to more vs less and the amount (grams vs kilograms) are left up to you to find out.

I know Borek is going to have a conniption over this :biggrin:

Suppose you were Mark Wahlberg from movie The Shooter, and you needed to figure out how much salt to add to water to infuse into you as an IV solution. How many tea spoons do you think you will need to add to make it an isotonic solution?
 
Last edited:
cronxeh said:
I know Borek is going to have a conniption over this :biggrin:

So you are wrong :yawn:
 
ok, 9grams, thanks
 

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