Answer: I think the right answer is c
Answer:
pH=11.
Explanation:
Hello!
In this case, since the data is not given, it is possible to use a similar problem like:
"An analytical chemist is titrating 185.0 mL of a 0.7500 M solution of ethylamine(C2HNH2) with a 0.4800 M solution of HNO3.ThepK,of ethylamine is 3.19. Calculate the pH of the base solution after the chemist has added 114.4 mL of the HNO3 solution to it"
Thus, for the reaction:
Tt is possible to compute the remaining moles of ethylamine via the following subtraction:
Thus, the concentration of ethylamine in solution is:
Now, we can also infer that some salt is formed, and has the following concentration:
Therefore, we can use the Henderson-Hasselbach equation to compute the resulting pOH first:
Finally, the pH turns out to be:
NOTE: keep in mind that if you have different values, you can just change them and follow the very same process here.
Best regards!
Answer:
is Bronsted Lowry base.
is Bronsted Lowry acid.
Explanation:
According to the Bronsted Lowry conjugate acid-base theory:
- An acid is defined as a substance which donates protons and form conjugate base
- A base is defined as a substance which accepts protons and forms conjugate acid.
is Bronsted Lowry base.It accepts protons and forms conjugate acid
is Bronsted Lowry acid.It donates protons and forms conjugate base
There in no exchange of proton in an above reaction.Neither of the reactants and products are Bronsted Lowry acid or Bronsted Lowry base
Given
Mass number of isotope = 63
Number of neutrons = 33
So number of protons = 63 - 33 = 30
Hence atomic number of metal = 30
thus metal is = zinc
now as it is forming cation with 28 electrons it means it has lost two electrons so it must have a dipositive charge
the symbol of metal ion will be
Zn^+2