The concentration of [H3O+] will be 6.3 x
M
<h3>pH</h3>
Mathematically, pH = -log [H+] or -log [H3O+]
With a pH of 13.2:
-log [H3O+] = 13.2
log [H3O+] = -13.2
[H3O+] = 6.3 x
M
More on pH can be found here: brainly.com/question/491373
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Answer:

Explanation:
Hello,
In this case, as the reaction between sodium hydroxide and sulfuric is:

We can notice a 2:1 molar ratio between the base and the acid, for that reason for the titration at the equivalence point we find:

Which in terms of concentrations and volumes is:

In such a way, solving for the required volume of base we find:

Best regards.
Answer:
γ > β > α
Explanation:
The penetrating power is inversely related to the mass. The higher the mass, the lower the penetrating power.
α rays are Helium nucleus (He²⁺), that is, they are formed by 2 protons and 2 neutrons. The mass of an α particle is 4.001 amu.
β rays are nuclear electrons, which result from the decay of a neutron. The mass of a β particle is 1/1840 amu.
γ rays contain no particles and have no mass.
The order of penetrating power is γ > β > α.