The concentration of hydrogen can be shown as:
[H+ ] = 3 * 10-5 M
pH can be determined as:
pH = - log [H+ ]
= - log (3 * 10-5)
= 4.53
Thus the pH of solution is 4.53
Answer:
Argon.
Explanation:
Argon is the element having 18 protons and 22 neutrons present in its nucleus. so its atomic number is 18 and mass number is 40 if we added both number of protons and neurons. Argon belongs to noble family due to completion of outermost shell and non reactive nature. It is the third most abundant gas about 0.934% present on the earth after nitrogen and oxygen.
According to <em>Prosen and Rossini, 1945</em>,
the standard heat of combustion of isooctane is -5461.3 kJ/mol. The negative sign is just to depict that there was a release of energy. Thus, to
produce 100 kJ energy,
100 kJ ÷ 5461.3 kJ/mol isooctane = 0.0183 moles isooctane.
0.0183 moles of isooctane must be burned.
I hope I was able to answer your question <span>J</span>
C is the answer because a and b are definitions for mass and volume and a doesn’t have to do with density