Salt can dissolve in water because it is an ionic compound. The Na⁺ and Cl⁻ ions get solvated by the water molecules and leave the surface of the crystal;
The formula of ethanol is CH₃CH₂OH. Ethanol can dissolve in water because its OH group can form strong hydrogen bonds to the water molecules.
The answer is option A.
That is A: They have shown how lead can build up and cause damage in the human body.
Lead had been used in plumbing and other products since ancient times. chemists showed that how lead can build up and cause damage in the human body.
Chemists have discovered lead toxicity and showed that it can cause damage in the human body since it is a toxic element.
Answer: The vapor pressure of the solution at is 460.63 mmHg
Explanation:
As the relative lowering of vapor pressure is directly proportional to the amount of dissolved solute.
The formula for relative lowering of vapor pressure will be,
where,
= relative lowering in vapor pressure
i = Van'T Hoff factor = 1 (for non electrolytes)
= mole fraction of solute =
Given : 11.79 g of chlorophyll is present in 153.2 g of diethyl ether
moles of solute (chlorophyll) =
moles of solvent (diethyl ether) =
Total moles = moles of solute + moles of solvent =0.01319 + 2.067 = 2.080
= mole fraction of solute =
Thus the vapor pressure of the solution at is 460.63 mmHg
Answer:
Coffee is the solvent, sugar is the solute, sugar molecules must be soluble
Explanation:
Note that Solution= solute +
If a solute dissolves in a solvent, then it is soluble in that solvent.
Answer:
the approximate pressure in the flask after 400. s = 1.2atm
Explanation:
The detailed explanation is shown below