# Chemistry

posted by .

I am having trouble figuring out the calculations for osmotic pressure. This is what I need to do.

Indicate whether the osmotic pressure of a 0.1M NaNO3 solution will be less than , the same as , or greater than that each of the following solutions

a. 0.1M NaCl b. 0.1M KNO3 c. 0.1M Na2SO4 d. 0.1M Glucose

• Chemistry -

pi = i*M*R*T
R and T (and M) are constant; therefore, only i will affect pi.
i for NaNO3 = 2
i for KNO3 = 2
i for Na2SO4 = 3
i for glucose = 1

## Similar Questions

1. ### vapor and osmotic pressure

A solution of the sugar mannitol ( molar mass 182.2 g/mol ) is prepared by adding 54.66 g of mannitol to 1.000 kg of water. The vapor pressure of pure liquid water is 17.54 torr at 20o C. Mannitol is nonvolatile and does not ionize …
2. ### osmotic pressure chemistry.

I have a question about osmotic pressure. I took a test in chemistry and this was a multiple choice question. It said given the molar mass of each solution, which one had the high osmotic pressure. So a high osmotic pressure, means …
3. ### osmotic pressure chemistry.

For a given mass of solute per liter of solution, the larger to formula mass, the lower the osmotic pressure. Osmotic pressure depends on molar concentration. A large molar mass would tend to produce a lower concentration in terms …
4. ### chemistry

Two solutions are prepared. In Solution A, 5.0 g of a substance of molecular weight 50 is dissolved in 100 mL of pure water. In Solution B, 5.0 g of a substance with molecular weight of 75 is dissolved in 100 mL of pure water. The …
5. ### chemistry

Suppose you are given a list of solutions (all with nonvolatile solutes) and their concentrations. You pick out the one with the lowest freezing point. It should also have (pick all that apply): the lowest boiling point the highest …
6. ### College Physiology

At the venular end of the capillary, the hydrostatic pressure is?
7. ### Chemistry

Calculate the osmotic pressure of this solution. 18..6 grams of solute with molecular mass of 8940 grams are dissolved in enough water to make 1.00 dm3 of solution at 25 celsius. What is the osmotic pressure of the solution?
8. ### Calculate Osmotic Pressure

69.7 grams of a solute with a molecular mass of 2790 grams are dissolved in enough water to make 1.00 dm3 of solution at 20 degrees C. What is the osmotic pressure of the soluton?
9. ### chemistry

A sample containing 0.0500mol of Fe2(SO4)3 is dissolved in enough water to make 1.00L of solution. This solution contains hydrated SO4 2- and Fe(H2O)6 3+ ions. The latter behaves as an acid: Fe(H2O)6 3+ --> Fe(H2O)5OH 2+ + H+ a) …
10. ### chemistry

a 250.0 ml sample of an aqueous solution at 25 degrees celsius contains 35.8 mg of an unknown nonelectrolyte compound. If the solution has an osmotic pressure of 11.25 mmHg, what is the molar mass of the unknown compound?

More Similar Questions