Explanation:
It is known that,
No. of moles = Molarity × Volume
So, we will calculate the moles of as follows.
No. of moles =
= 0.0125 mol
Now, the moles of KOH are as follows.
No. of moles =
= 0.0374 mol
And, =
= 0.0375 mol
Now, the balanced reaction equation is as follows.
This means 1 mole of produces 173.2 kJ of heat. And, the amount of heat produced by 0.0125 moles of is as follows.
M =
= 2.165 kJ
Total volume of the solution = (55.0 + 55.0) ml
= 110 ml
Density of the solution = 1.13 g/ml
Mass of the solution = Volume × Density
=
= 124.3 g
Specific heat = 3.78
Now, we will calculate the final temperature as follows.
q =
2165 J =
2165 - 469.854 =
17.417 =
T =
Thus, we can conclude that final temperature of the solution is .
To carefully observe, study, or test
something in order to learn more about it, a procedure called an investigation
must be carried out. Scientists make certain assumptions to
reach this goal. It is assumed by scientists that:
<span>1.
</span>Thru a systematic
study, nature can be understood.
<span>2.
</span>Revisions are
something that scientific ideas are open to.
<span>3.
</span>The test of time is
something that sound scientific ideas withstand to.
<span>4.
</span>Answers to all
questions cannot be provided by science.
Laws of nature are expressed as scientific laws.
<span>Nature is thought by scientists as a single system that is
managed by natural laws. Scientists attempt to increase their understanding of
the natural world by discovering natural laws. Scientific laws are the
expression of laws of nature.</span>
1 mol = 6.022 x 10²³ atoms
In order to find how many atoms, dimly multiply the amount of moles you have by 6.022 x 10²³ or Avogadro's number.
So you have 1.75 mol CHC1₃ x (6.022x10²³) = 1.05385 x 10²⁴ atoms of CHCl₃
But now you have to round because of the rules of significant figures so you get 1.05 x 10²⁴ atoms of CHCl₃