Math  /  Word Problems

QuestionWhat sodium chloride concentration is needed for an isotonic solution with blood at 7.70atm7.70 \, \mathrm{atm}? Use π=MRT\pi = MRT.

Studdy Solution
Perform the division to calculate the molar concentration MM.
M=7.70atm0.0821atm/Kmol×298.15K=0.318mol/LM = \frac{7.70 \, \mathrm{atm}}{0.0821 \, \mathrm{ \cdot atm/K \cdot mol} \times298.15 \, \mathrm{K}} =0.318 \, \mathrm{mol/L}The concentration of sodium chloride in water needed to produce an aqueous solution isotonic with blood is 0.318mol/L0.318 \, \mathrm{mol/L}.

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