The question is incomplete, the complete question is:
A certain liquid X has a normal freezing point of 
and a freezing point depression constant 
. Calculate the freezing point of a solution made of 81.1 g of iron(III) chloride () dissolved in 850. g of X. Round your answer to significant digits.
<u>Answer:</u> The freezing point of the solution is 
<u>Explanation:</u>
Depression in the freezing point is defined as the difference between the freezing point of the pure solvent and the freezing point of the solution.
The expression for the calculation of depression in freezing point is:
OR
......(1)
where,
Freezing point of pure solvent =
Freezing point of solution = 
i = Vant Hoff factor = 4 (for iron (III) chloride as 4 ions are produced in the reaction)
= freezing point depression constant = 
= Given mass of solute (iron (III) chloride) = 81.1 g
= Molar mass of solute (iron (III) chloride) = 162.2 g/mol
= Mass of solvent (X) = 850. g
Putting values in equation 1, we get:
![0.8-(\text{Freezing point of solution})=4\times 7.82\times \frac{81.1\times 1000}{162.2\times 850}\\\\\text{Freezing point of solution}=[0.8-18.4]^oC\\\\\text{Freezing point of solution}=-17.6^oC](https://tex.z-dn.net/?f=0.8-%28%5Ctext%7BFreezing%20point%20of%20solution%7D%29%3D4%5Ctimes%207.82%5Ctimes%20%5Cfrac%7B81.1%5Ctimes%201000%7D%7B162.2%5Ctimes%20850%7D%5C%5C%5C%5C%5Ctext%7BFreezing%20point%20of%20solution%7D%3D%5B0.8-18.4%5D%5EoC%5C%5C%5C%5C%5Ctext%7BFreezing%20point%20of%20solution%7D%3D-17.6%5EoC)
Hence, the freezing point of the solution is
One term could be allostasis, the opposite of homeostasis.
Other antonyms of homeostasis, the body's ability to maintain a stable internal environment, include imbalance, instability, etc.
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Th actual yield of the reaction is 24.86 g
We'll begin by calculating the theoretical yield of the reaction.
2Na + Cl₂ → 2NaCl
Molar mass of Na = 23 g/mol
Mass of Na from the balanced equation = 2 × 23 = 46 g
Molar mass of NaCl = 23 + 35.5 = 58.5 g/mol
Mass of NaCl from the balanced = 2 × 58.5 = 117 g
From the balanced equation above,
46 g of Na reacted to produce 117 g of NaCl.
Therefore,
11.5 g of Na will react to produce = (11.5 × 117) / 46 = 29.25 g of NaCl.
Thus, the theoretical yield of NaCl is 29.25 g.
Finally, we shall determine the actual yield of NaCl.
- Theoretical yield = 29.25 g
Actual yield = Percent yield × Theoretical yield
Actual yield = 85% × 29.25
Actual yield = 0.85 × 29.25 g
Actual yield = 24.86 g
Learn more about stoichiometry: brainly.com/question/25899385
