If the moon resembled an asteroid, which theory would be most supported?
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The freezing point of a 1.324 m solution, prepared by dissolving biphenyl into naphthalene, is 71.12 ° C.
A solution is prepared by dissolving biphenyl into naphthalene. We can calculate the freezing point depression (ΔT) for naphthalene using the following expression.
where,
- i: van 't Hoff factor (1 for non-electrolytes)
- Kf: cryoscopic constant
- m: molality
The normal freezing point of naphthalene is 80.26 °C. The freezing point of the solution is:
The freezing point of a 1.324 m solution, prepared by dissolving biphenyl into naphthalene, is 71.12 ° C.
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<h2>Answer:0.5 moles,1 mole</h2>
Explanation:
is readily soluble in water.
dissolves in water to give
ions and
ions.
The reaction is
→
So, mole of
gives
mole of
and
moles of
.
So, moles of
gives
moles of
and
mole of
.