The question is incomplete, the complete question is;
In a laboratory experiment, students synthesized a new compound and found that when 12.23 grams of the compound were dissolved to make 228.1 mL of a benzene solution, the osmotic pressure generated was 4.55 atm at 298 K. The compound was also found to be non-volatile and a non-electrolyte. What is the molecular weight they determined for this compound?
Answer:
287.76 g/mol
Explanation:
From;
π
=
M
R
T
M = molarity
R= gas constant
T = temperature
number of moles = π * volume/RT
number of moles = 4.55 * 228.1/1000/0.082 * 298
number of moles = 1.037855/24.436
number of moles = 0.0425 moles
Molar mass = mass/number of moles
Molar mass = 12.23 grams/0.0425 moles
Molar mass = 287.76 g/mol
Answer:
Weight is the measure of the amount of force acting on a mass due to acceleration due to gravity.Mass is the scalar quantity and weight is a vector quantity. The unit of mass is kg while the unit of weight is N. Mass can't be changed by changing place, weight can be changed by changing the place.
Explanation:
0.25 g al should equal around 0.009265594867125 moles
I hope this help
