Given:
0.607 mol of the weak acid
0.609 naa
2.00 liters of solution
The solution for finding the ph of a buffer:
[HA] = 0.607 / 2.00 = 0.3035 M
[A-]= 0.609/ 2.00 = 0.3045 M
pKa = 6.25
pH = 6.25 + log 0.3045/ 0.3035 = 6.25 is the ph buffer prepared.
Answer:
To keep the evinermental machinces working
Explanation:
Answer:
Explanation:
Entropy is the thermal energy that is unavailable for humans to do useful work.human system normally progress from disorder to order. This entropy interferes with humans day to day activities. Once this energy is consumed it is converted from one form to another and it is the tax paid for those energies. It is the continuous dissipation of energy. For example if 1000J of energy is consumed, and nature take part of it, 900J is available for work.
Helium (He)
Explanation:
In the picture we see the following elementary particles:
2 electrons - the two spheres with negative charge which orbit around the nucleus
2 protons - the two spheres with positive charge in the nucleus
2 neutrons - the two spheres with no charge in the nucleus
The element will be Helium (He), because it have the atomic number 2 and the mass number 4, which means it contains 2 electrons, 2 protons and 2 neutrons.
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Answer:
The answer to your question is: Phosphorous acid
Explanation:
Phosphorous can form 2 main acids
H₃PO₃ is called phosphorous acid
H₃PO₄ is called phosphoric acid
