because a postive and negative can be used in. ion
The collagen provides structural support.
From the equation, we see that for every 4 moles of pyrite consumed, 11 moles of oxygen are consumed.
So, the answer is (10.5/4)(11) = <u>28.875 mol</u>
Answer:Switch off lighting in refrigeration areas when not in use?
Explanation:
Answer:
Vapor pressure of solution is 98.01 Torr
Explanation:
Colligative property. In this case, we apply the lowering vapor pressure.
ΔP = P° . Xm
P° - P' = Vapor pressure of pure solvent - Vapor pressure of solution = ΔP
Xm is the molar fraction for solute. We try to determine it:
Moles of solute / Total moles → Total moles = Solute moles + Solvent moles
10.3 g . 1mol / 154 g = 0.0669 moles of biphenyl
27.8 g . 1mol / 78 g = 2.32 moles of benzene
Total moles = 2.32 moles + 0.0669 moles = 2.3869 moles
Xm for solute = 0.0669 / 2.3869 = 0.028
Let's replace data:
100.84 Torr - P' = 100.84 Torr . 0.028
P' = - (100.84 Torr . 0.028 - 100.84Torr) = 98.01 Torr
