Explanation:
As the given data is as follows.
m = 6.51 kg, g = 9.8 , h = 66.8 m
mass of water (M) = 0.68 kg, Specific heat of water = 4200
According to the given situation, the decrease in potential energy of mass will be equal to heat energy gained by water.
Therefore,
mgh =
4261.7064 =
1.492 = - 15
So,
=
Therefore, we can conclude that rise in temperature will be .
The pH of the solution is 0.37.
<h3>What is the pH of the solution?</h3>We can write the equation of the reaction as;
Number of moles of = 24/1000 * 1 = 0.024 moles
Number of moles of = 60/1000 * 1 = 0.060 moles
Given that the reaction is 1:1, the limiting reactant is NaOH
Number of moles of NH4Cl left over = 0.060 - 0.024 = 0.036 moles
Concentration of left over NH4Cl = 0.036 moles/(24 + 60)/1000
= 0.43 moles
pH = -log(0.43)
pH = 0.37
Learn more about pH:brainly.com/question/15289741
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