Answer:
Freezing T° of solution = - 4.52°C
Explanation:
ΔT = Kf . m . i
That's the formula for colligative property about freezing point depression.
Li₂O is an oxide that can not be dissociated but, if we see it's a ionic compound.
Li₂O → 2Li⁺ + O⁻²
3 moles of ions have been formed. Ions dissolved in solution are i, what we call Van't Hoff factor.
m is molality → 0.811 m, this is data
Kf →Cryoscopic constant, for water is 1.86 °C/m
and ΔT = Freezing T° of pure solvent - Freezing T° of solution
We replace: 0°C - Freezing T° of solution = 1.86°C/m . 0.811 m . 3
Freezing T° of solution = - 4.52°C
A because it’s more reasonable and reliable plus it the right answer
Answer:
98.42 L of a gas
Explanation:
So we'll use the formula:
PV=nRT
To find the volume:
v=(nRT)/P
n=1.2 moles
R=0.08206 Latm/K.mol
-A small side note: It is good to check the units of the quantities that you've been provided ,in order to determine which R value to use.
T=350K
P=0.35 atm
V=(1.2 x 0.08206 x 350)/(0.35)
V=98.472L
=98.42 L
Hope it helps:)
Answer:
C. Parasitism
Explanation:
Mutualism means both organisms benefit. An example of this is a bee and flower.
Commensalism means one organism benefits and the other is unaffected. An example of this is a whale and barnacles.
Parasitism means one organism benefits, and the other is harmed. An example of this other than mosquito and human is a dog and fleas.
Hope this helps!!
Answer:
protista, fungi, plant, animal
Explanation:
this is the answer
