Answer:
100.223°C is the boiling point of an aqueous solution.
Explanation:
Osmotic pressure of the solution = π = 10.50 atm
Temperature of the solution =T= 25 °C = 298 .15 K
Concentration of the solution = c
van'y Hoff factor = i = 1 (non electrolyte)
c = 0.429 mol/L = 0.429 mol/kg = m
(density of solution is the same as pure water)
m = molality of the solution
Elevation in boiling point = 
T = Boiling point of the pure solvent
= boiling point of the solution
= Molal elevation constant
We have :
(given)
m = 0.429 mol/kg
T = 100° C (water)
100.223°C is the boiling point of an aqueous solution.
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Hi Khal75,
Experiment: How to seperate sand.
Answer - separated using a filter; not soluble in water
Sand is not soluble in water. If you heat it all the water will dissolve but the sand will not.
Answer: The given statement is false.
Explanation:
Weight :It is defined as the measure of force exerted upon the object by the gravity. It is measured in Newtons.
, where W= Weight , m = mass of the object , g = acceleration due to gravity = 
Here the given statement is False, the correct statement will be:
The density of a substance is defined as its mass divided by its volume.
