gisellekatherine1
31.10.2019 •
Chemistry
The concentration of hydrogen ions in a certain aqueous solution is 1.0 × 10−4 m. calculate the concentration of the hydroxide ion
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Ответ:
[OH-]= ?
Kw=[H+][OH-]
kw at 25 c is 10^-14
so
10^-14=10^-4[OH-]
10^-10=[OH-]
[OH-]=10^-10
Ответ:
Assuming atoms are shaped like spheres, what subatomic particles would be found in the center? What subatomic particles would be found around the perimeter? Center (nucleus) – protons & neutrons. Perimeter - electrons 3.
The three main subatomic particles that form an atom are protons, neutrons, and electrons. The center of the atom is called the nucleus. First, let's learn a bit about protons and neutrons, and then we will talk about electrons a little later. Protons and neutrons make up the nucleus of an atom.
Explanation: