Asked by Robin
What is the mass of NaCl required to make 840. mL of solution having an osmotic pressure of 7.70 atm at 36.6°C? This is the approximate concentration of the saline solution used to rinse contact lenses.
Answers
Answered by
DrBob222
pi = osmotic pressure in atm = i*M*RT
You know pi in atm.
i = van't Hoff factor which is 2 for NaCl
R = 0.08205 = universal gas constant
T = kelvin temperature
Solve for M = molarity
Then M = mols/L.You have L, solve for mols and mols = g/molar mass NaCl.solve for g NaCl. Post your work if you get stuck.
You know pi in atm.
i = van't Hoff factor which is 2 for NaCl
R = 0.08205 = universal gas constant
T = kelvin temperature
Solve for M = molarity
Then M = mols/L.You have L, solve for mols and mols = g/molar mass NaCl.solve for g NaCl. Post your work if you get stuck.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.