Question

100 ml of a solution of physiological saline (0.92% NaCl by weight) is diluted by the...

100 ml of a solution of physiological saline (0.92% NaCl by weight) is diluted by the addition of 210 ml of water. what is the osmotic pressure of the final solution at 37 degrees Celsius? Assume that NaCl dissociates completely into Na+ and Cl-.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

100 ml of a solution of physiological saline (0.92% NaCl by weight) is diluted by the addition of 210 ml of water. what is the osmotic pressure of the final solution at 37 degrees Celsius? Assume that NaCl dissociates completely into Na+ and Cl-.

Solution:

The final volume =210 mL

Amount of NaCl = 0.92% NaCl by weight , this means 0.92g in 100mL

So the moles of NaCl = Mass / Molar mass = 0.92 / 58.5 = 0.0157 moles

molarity = moles / Volume in L = 0.0157 / 0.210 = 0.0748 M

= iMRT

i =2

R = 0.0821 L atm / mol K

T = 310 K

= 2 X 0.0748 X 0.0821 X 310 = 3.81 atm

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
333.7g of NaCl completely dissolves (producing Na + and Cl - ions) in 1.00 kg of...
333.7g of NaCl completely dissolves (producing Na + and Cl - ions) in 1.00 kg of water at 25.0 degrees celsius. The vapore pressure of pure water at this temperature is 23.8 torr. Determine the vapor pressure of the solution. A) 18.2 torr B) 23.8 torr C) 19.7 torr D) 17.5 torr E) 21.6 torr I know the answer is C, but why? (Show work and explain please).
If 100. mL of 0.200 M Na2SO4 is added to 200. mL of 0.300 M NaCl,...
If 100. mL of 0.200 M Na2SO4 is added to 200. mL of 0.300 M NaCl, what is the concentration of Na+ ions in the final solution? Assume that the volumes are additive.
What is the molecular weight of a polymer if 3.50g are dissolved in enough water to...
What is the molecular weight of a polymer if 3.50g are dissolved in enough water to give 252 mL of the solution and give a osmotic pressure of 28.52 mm Hg at 25 degrees Celsius?
62.0 mL of a 1.80 M solution is diluted to a total volume of 278 mL....
62.0 mL of a 1.80 M solution is diluted to a total volume of 278 mL. A 139-mL portion of that solution is diluted by adding 177 mL of water. What is the final concentration? Assume the volumes are additive.
52.0 mL of a 1.70 M solution is diluted to a total volume of 258 mL....
52.0 mL of a 1.70 M solution is diluted to a total volume of 258 mL. A 129-mL portion of that solution is diluted by adding 109 mL of water. What is the final concentration? Assume the volumes are additive.
61.0 mL of a 1.80 M solution is diluted to a total volume of 238 ML....
61.0 mL of a 1.80 M solution is diluted to a total volume of 238 ML. A 119 mL portion of that solution is diluted by adding 111 mL of water. What is the final concentration? Assume the volumes are additive.
62.0 mL of a 1.50 M solution is diluted to a total volume of 258 mL....
62.0 mL of a 1.50 M solution is diluted to a total volume of 258 mL. A 129-mL portion of that solution is diluted by adding 187 mL of water. What is the final concentration? Assume the volumes are additive.
When 100 mL of Ba(NO3)2 solution at 25 degrees Celsius is mixed with 100 mL solution...
When 100 mL of Ba(NO3)2 solution at 25 degrees Celsius is mixed with 100 mL solution CaSO4 solution at 25 degrees Celsius in calorimeter, the white solid BaSO4 forms and the temperature of the mixture increases to 28.1 degrees Celsius. Assuming that the calorimeter absorbs only a negligible quantity of heat and the specific heat capacity of the solution is 4.184 J/g.degrees Celsius, and that the density of the final solution is 1.0 g/mL, calculate the enthalpy change of this...
1. If I have 100 mL of a 0.15 M NaOH solution and I dilute the...
1. If I have 100 mL of a 0.15 M NaOH solution and I dilute the solution to a final volume of 250 mL, what will the molarity of the diluted solution be? 2. If I add 25 mL of water to 125 mL of a 0.15 M NaOH solution, what will the molarity of the diluted solution be? 3. I have 345 mL of a 1.5 M NaCl solution. If I boil the water until the volume of the...
a 100 gram sample of nacl is added to 100 ml of water at 0 degrees...
a 100 gram sample of nacl is added to 100 ml of water at 0 degrees Celsius. after equilibrium is reached, about 64 g of solid remains I dissolved. describe the equilibrium that exists in this system at the particulat
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT