Convalent Bond energy is low
The heat absorbed by the water is
Q = 500 (4.18) (32.2 - 25)
Q = 15048 J
The enthalpy of fusion of the sodium acetate is:
<span>ΔHf = Q / m
</span><span>ΔHf = 15048 / 100
</span>ΔHf = 150.48 J/g
<h2>Hello!</h2>
The answer is: 4.77atm
<h2>Why?</h2>
Since there's a fixed volume, we can use the the Gay-Lussac's Law which stablish a relation between the pressure and the temperature:

<em>P</em> is the volume of the gas
<em>t</em> is the temperature of the gas
<em>k </em>is the proportionality constant
We also have the following equation:

Where:

We are asked to find the pressure in atm, so we must convert 483.73kPa to atm:

Then,

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Explanation:
It is given that volume of
is 300 mL and molarity is 0.200 M.
Volume of NaCl is 200 mL and molarity is 0.050 M.
The chemical reaction will be as follows.

for
is given as
.
As, molarity is number of moles present in liter of solution.
Hence, moles of
(aq) will be calculated as follows.
moles of
(aq) = 
= 0.06 mol
= 
= 0.120 M
Mole of
=
= 0.010 M
Now, Q =
= 
=
As, Q <
hence, there will be no formation of
precipitate.