Answer:
A.A
Explanation:
I took the quiz and I got that answer
Answer:
The molar mas of the X is 203.06 g/mol.
Explanation:
The pressure of the pure solvent = p = 23.8 Torr
Vapor pressure of the solution =
Mass of solute =14.4 g
Molar mass of solute = M
Moles of solute =
Mass of solvent or water = 100.0 g
Moles of water =
Mole fraction of solute =
The relative lowering in vapor pressure of the solution with non volatile solute is equal mole fraction of solute in solution.
Solving for
The molar mas of the X is 203.06 g/mol.
Answer: The final pressure is 0.81 kPa
Explanation:
The combined gas equation is,
where,
= initial pressure of gas = 0.58 kPa
= final pressure of gas = ?
= initial volume of gas = v
= final volume of gas =
= initial temperature of gas =
= final temperature of gas =
Now put all the given values in the above equation, we get:
The final pressure is 0.81 kPa