In a laboratory experiment, students synthesized a new compound and found that when 11.01 grams of the compound were dissolved to make 158.1 mL of a ethanol solution, the osmotic pressure generated was 1.91 atm at 298 K. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound?

892 g/mol

Explanation:

Step 1: Given and required data

Mass of the nonvolatile and a non-electrolyte solute: 11.01 gVolume of solution: 158.1 mL = 0.1581 LOsmotic pressure (π): 1.91 atmIdeal gas constant (R): 0.0821 atm.L/mol.KAbsolute temperature (T): 298 K

Step 2: Calculate the molarity (M) of the solution

The osmotic pressure is a colligative property that can be calculated using the following expression.

π = M × R × T

M = π / R × T

M = 1.91 atm / (0.0821 atm.L/mol.K) × 298 K

M = 0.0781 M

Step 3: Calculate the molecular weight of the solute

We will use the following expression for molarity.

M = mass of solute / molecular weight of solute × liters of solution

molecular weight of solute = mass of solute / M × liters of solution

molecular weight of solute = 11.01 g / (0.0781 mol/L) × 0.1581 L

molecular weight of solute = 892 g/mol

It is 4.92 e-4 sorry if i am wrong

Okay well gravitational energy is matter forced by gravity making energy though the kinetic energy then the electric energy produces electricity from the kinetic energy and the kinetic energy gets its energy from the gravitational energy. was that the answer you wanted or something else?