liam uses a machine that counts waves on a metal cable. The machine counts 25 waves in 2 seconds. what is the frequency of the w
1 answer:
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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 .