Answer: pH of the given solution is 8.7.
Explanation:
For the buffer mixture, initial pOH will be given as follows.
pOH =
= ![-log(1 \times 10^{-6}) + log \frac{0.25}{0.75}](https://tex.z-dn.net/?f=-log%281%20%5Ctimes%2010%5E%7B-6%7D%29%20%2B%20log%20%5Cfrac%7B0.25%7D%7B0.75%7D)
= ![6 - 0.477](https://tex.z-dn.net/?f=6%20-%200.477)
= 5.523
When 0.05 mol NaOH is added to this buffer solution then concentration of species present will be as follows.
![NaOH + HB^{+}Cl^{-} \rightarrow BOH + NaCl](https://tex.z-dn.net/?f=NaOH%20%2B%20HB%5E%7B%2B%7DCl%5E%7B-%7D%20%5Crightarrow%20BOH%20%2B%20NaCl)
0.05 mol 0.25 0.75 0
0 0.20 (0.75 + 0.25) 0.05
Hence, the volume of solution will be 1 liter.
[BOH] =
, [Salt] = ![\frac{0.20}{1}](https://tex.z-dn.net/?f=%5Cfrac%7B0.20%7D%7B1%7D)
So, pOH =
[/tex]
= 6 - 0.69
= 5.30
Now, we will calculate the pH as follows.
pH = 14 - 5.30
= 8.7
Thus, we can conclude that pH of the given solution is 8.7.
<u>0.549 mol</u> of citric acid are in 1.50 qt of lemon juice (d = 1.09 g/mL) that is 6.82% citric acid.
<h3>What is citric acid?</h3>
Citric acid is an organic compound with a chemical formula of
. It is a weak organic acid that is colourless. Citrus fruits naturally produce it. It is a biochemical intermediary in the citric acid cycle, which is a process that all aerobic organisms go through during metabolism.
Every year, more than two million tonnes of citric acid are produced. It is frequently employed as a chelating agent, an acidifier, and a flavouring
Citrates, which include salts, esters, and the polyatomic anion present in solution, are derivatives of citric acid. Trisodium citrate is an example of the former; triethyl citrate is an example of an ester.
Learn more about Citric acid
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Covalent bonding occurs when electrons are shared between atoms. Double and triple covalent bonds occur when four or six electrons are shared between two atoms, and they are indicated in Lewis structures by drawing two or three lines connecting one atom to another.
Answer:
no
Explanation:
Water is made up of oxygen and hydrogen. both of those are on the periodic table. water is not an element though
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Answer:
1) eathquake
earthquake is the natural calamities where there is the vertical and horizontal shaking of the
earth crust. it is cause due to overlappibg of the different plates that are present in the earth surface. when this plates intersect or expand the earth occurs
consequences are it causes loss of life and human property , degards the environment , it leads to flood, landslides etc The damage caused by earthquakes is from ground shaking, ground rupture, landslides, tsunamis, and liquefaction.
Next - volcanic eruption
its is the out flow of the larva from the inner of the earth to other surface. it is cayse due to high pressure exerted on the surface of the earth that leads to explode the inner larva.
its consequences are it degards the environment and loss of the beauty of the nature , there is loss of human life , widlife , etc. volcanic eruption include infectious disease, respiratory illness, burns, injuries from falls, and vehicle accidents related to the slippery, hazy conditions caused by ash. When warnings are heeded, the chances of adverse health effects from a volcanic eruption are very low.