Which part of an atom has most of its mass?
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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:
Hence, the freezing point of the solution is
Reaction of Acyl Halides with Grignard reagent results in the formation of Ketones in first step. While in second step reaction of Grignard reagent with Ketones results in the formation of Tertiary Alcohols.
If you want to stop the reaction at Ketone stage then you are required to use another mild reactive organometallic compound. In our case we will use Organocuprates. Organocuprates are also known as Gilman Reagents. These reagents does not add to ketones, aldehydes and esters but they can add to acid halides to produce Ketones.
If you want to stop the reaction at Ketone stage then you are required to use another mild reactive organometallic compound. In our case we will use Organocuprates. Organocuprates are also known as Gilman Reagents. These reagents does not add to ketones, aldehydes and esters but they can add to acid halides to produce Ketones.