Explanation:
1L=1000mL
1dm³=1L
1dm³=1000cm³
29.84ml-29.00ml=0.84ml
Density=mass(g)/volume(cm³)
=6.6g/(0.84cm³)
=?
Answer:
its when the moon is full or new
Explanation:
the gravitational pull of the moon and sun are combined
Answer:
The mole fraction of benzene if 0.43
Explanation:
Let's apply the colligative property of vapor pressure lowering.
P° - Ps = P° . Xm
Where P° is vapor pressure of pure solvent
Ps is vapor pressure of solution
Xm is mole fraction of solute
Determine the solute and the solvent:
Solute: Toluene
Solvent: Benzene (Vapor pressure of pure bencene at 20°C, is 74.7Torr)
74.7 Torr - 32 Torr = 74.7 Torr . Xm
42.7 Torr / 74.7 Torr = 0.57 → Xm
Sum of mole fraction = 1
Mole fraction of bencene + Mole fraction of toluene = 1
Mole fraction of bencene + 0.57 = 1 ⇒ 1 - 0.57 = 0.43
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