Answer:
Explanation:
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If this helps could you mark brainliest? ty
Answer:
3.8 is the van't Hoff factor for iron(III) chloride in X.
Explanation:
where,
=depression in freezing point =
= freezing point constant
m = molality =
i = van't Hoff factor
we have :
Mass of glycine = 63.4 g
Molar mass of glycine = 71 g/mol
Mass of solvent X = 700. g = 0.7 kg
1 g = 0.001 kg
of solvent X= ?
i = 1 (non electrolyte)
Depression in freezing point=
When iron(III) chloride is dissolved in 0.7 kg of solvent X
Mass of iron(III) chloride = 63.4 g
Molar mass of iron(III) chloride= 162.5 g/mol
Mass of solvent X = 700. g = 0.7 kg
1 g = 0.001 kg
of solvent X=
i = ?
Depression in freezing point:
Solving for i:
i = 3.85 ≈ 3.8
3.8 is the van't Hoff factor for iron(III) chloride in X.
It is easier to predict the boiling point of heptene rather than its melting point because of their geometrical isomerism.
<h3>What is melting point?</h3>
Melting point is that point at which any compound changes its state from solid to another state liquid, and at this point both the states are present in equilibrium.
It is easier to predict the boiling point of heptene as in this molecule constant number of double bond is present its not changing. But due to double bond heptance shows cis and trans isomer, and among them one isomer will be stable and another one is unstable.
That's why it is not easy to predict the melting point.
Hence, due to geometrical isomers it is not easy to predict melting point.
To know more about melting point, visit the below link:
brainly.com/question/40140
Hydrogen gas
Acid + metal = salt and hydrogen gas
Answer:
I think it's B, good luck