Answer:
Low pressure and high temperature :)
Have an amazing day!!
Please rate and mark brainiest!!
Answer:
A)Boiling point constant of benzene = 2.63°C/m
B) 242.77 g/mol is the molar mass of the solute.
Explanation:
where,
=Elevation in boiling point
= boiling point constant od solvent= 3.63 °C/m
1 - van't Hoff factor
m = molality
A) Mas of solvent = 500 g = 0.500 kg
T = 80.1°C , =82.73°C
= 82.73°C - 80.1°C = 2.63°C
Boiling point constant of benzene = 2.63°C/m
B) Mass of solute = 1.2 g
Molar mas of solute = M
Mass of solvent = 50 g= 0.050 kg
i = 1
T = 80.1°C , =80.36°C
=80.36°C - 80.1°C = 0.26°C
M = 242.77 g/mol
242.77 g/mol is the molar mass of the solute.
<u>Answer:</u>
0.00926
<u>Explanation:</u>
no. of moles = mass ÷ molar mass (RMM)
Molar mass of Al is 27.
∴ no. of moles = 0.25 ÷ 27
= 0.00926 moles (3 s.f.)
Explanation:
1 gram of AGNO3 is 169,87 g/mol
2.5 mole = 2.5×16987
= 42467
I think the answer is c but I’m not sure