Water that is returned to the environment after secondary treatment is known as effluent
Answer:
there are 0.074 moles in 2.3 grams of phosphorus
Given that,
Work done by the system = 125 J
Energy released when it cools down = 438 J
To find,
The change in internal energy.
Solution,
As heat is released by the system, Q = -438 J
Work done by the system, W = -125 J
Using the first law of thermodynamics. The change in internal energy is given by :
So, the change in internal energy is 563 J.
Moral relativism considers that something, such as abortion, can only be right or wrong in relation to one or another moral framework. Morality is then a human invention. The relevant moral principles are thus nothing but conventions that result from a process of tacit moral bargaining through which some groups can exert pressure on others in an effort to change the current moral conventions. This encourages the view that "anything goes" and that morality is just a matter of opinion. Relativism makes dialogue pointless, assuming that there is no binding truth or that partners in the dialogue are saying the same thing in different ways.
Answer:
To maintain a pH value of 8.8 in a particular solution the best option is Tris or boric acid.
Explanation:
To decide a good acid/conjugate base pair it is necessary to know the pKa of the acids because every buffer has an optimal effective range due to pH = pKa ± 1. The closer the working pH is to the acid pKa, the buffer will be more effective. Below is the list of the pKa of the different option.
Acetic acid: pKa = 4.76
Boric acid: pKa1 = 9.24 pKa2 = 12.74 pKa3 = 13.80
Ascorbic acid: pKa1 = 4.17 pKa2 = 11.57
Tris: pKa = 8.06
Acetic and Ascorbic acid are too far from the range of 8.8. Thus the best options are boric acid or Tris. To define between these two it is necessary to consider other factors like interaction between components of the solution and the ionic strength required.
