Answer:
Doing experiments by scientific procedures is advantageous and helpful.
Explanation:
The scientific procedure should be followed while performing a experiment as it has many advantages like:
- Working in safe environment: Performing a experiment by scientific procedure ensures the safety of the experimenter.
- It reduces the chances of mistakes: The proper availability of the scientific equipment helps in reduction of the chances of the mistakes.
- A sequence of steps is followed: A proper sequence of steps is followed to perform a experiment step by step. Performing experiment without scientific procedure may cause the experimenter to forgot a step.
- More Accuracy: The readings of the experiment is more accurate by doing experiment by scientifically.
- Chemical changes can be observed: The physical and chemical changes can be observed and can be measured by the lab equipment to perform more accurately.
- less chance of risks: Performing in the safe scientific environment and using proper safety equipment reduces the chances of risks to the experimenter.
The molar mass of the compound:
If the solution has an osmotic pressure of 8.44 torr, then the molar mass of the unknown non-electrolyte is 223.14 g.
What is osmosis?
- Osmosis is defined as the flow of solvent molecules through semi-permeable membrane.
- Osmotic pressure is the pressure applied to stop the flow of solvent molecules.
- It is a colligative property that means osmotic pressure depends on the number of solute particles .
Therefore,
π
( for electrolytes)
Where, π= Osmotic pressure
i = Van 't Hoff factor
n= moles
R= Gaseous constant = 62.363577 L torr 
T= Temperature
V= Volume of solution
Given:
T= 298K
V= 150 mL= 0.150 L
Given mass of unknown electrolyte= 15.2 mg = 15.2 x
g
Osmotic pressure= 8.44 torr
Molar mass= ?
For non-electrolytes:
πV = n RT
πV=
RT
Calculations:
Putting the given values in the formula:
8.44 x 0.150 =15.2 x
/ M x 62.36 x 298
1.266 = 282.5/M
M = 282.5/1.266
M = 223.14 g
Therefore,
The molar mass of the unknown non-electrolyte is 223.14g.
Learn more about Osmotic pressure here,
brainly.com/question/13680877
#SPJ4
Answer:
1u1u2j2jj and her family
Explanation:
I have been 9in 7the 6same 6of 8for and then I am a solicitor at Cardiff on