Depression in freezing point (Δ
![T_{f}](https://tex.z-dn.net/?f=%20T_%7Bf%7D%20)
) =
![K_{f}](https://tex.z-dn.net/?f=%20K_%7Bf%7D%20)
×m×i,
where,
![K_{f}](https://tex.z-dn.net/?f=%20K_%7Bf%7D%20)
= cryoscopic constant =
![1.86^{0} C/m](https://tex.z-dn.net/?f=%201.86%5E%7B0%7D%20C%2Fm)
,
m= molality of solution = 0.0085 m
i = van't Hoff factor = 2 (For
![NaNO_{3}](https://tex.z-dn.net/?f=%20NaNO_%7B3%7D%20)
)
Thus, (Δ
![T_{f}](https://tex.z-dn.net/?f=%20T_%7Bf%7D%20)
) = 1.86 X 0.0085 X 2 =
![0.03162^{0}C](https://tex.z-dn.net/?f=%200.03162%5E%7B0%7DC%20)
Now, (Δ
![T_{f}](https://tex.z-dn.net/?f=%20T_%7Bf%7D%20)
) =
![T^{0}](https://tex.z-dn.net/?f=%20T%5E%7B0%7D%20)
- T
Here, T = freezing point of solution
![T^{0}](https://tex.z-dn.net/?f=%20T%5E%7B0%7D%20)
= freezing point of solvent =
![0^{0}C](https://tex.z-dn.net/?f=%200%5E%7B0%7DC%20)
Thus, T =
![T^{0}](https://tex.z-dn.net/?f=%20T%5E%7B0%7D%20)
- (Δ
![T_{f}](https://tex.z-dn.net/?f=%20T_%7Bf%7D%20)
) = -
Answer:
A continent is a large distinct landmass.
There are seven continents on Earth.
Continents cover two-thirds of Earth’s surface.
Explanation:
7=cells
9= The Central Nervous system
10= not sure
Answer:
No.
Explanation:
No. There is 1 atom of Ca on the left and 2 Ca's on the right and 2 OH's on the left and 4 on the right.
The balanced equation is:
4OH- + 2Ca2+ ----> 2Ca(OH)2.