Answer:
Antonie Lavoisier also known after the french revolution
Mass:20g
Mole=20/[2(23)+16]
=0.32 mil
Answer is: <span>the acid ionization constant (Ka) for the acid is </span>8.46·10⁻⁶.
Chemical reaction: HA(aq) ⇄ H⁺(aq) + A⁻(aq).
pH = 2,91.
[H⁺] = 10∧<span>-2,91 = 0,00123 M.
</span>[H⁺] = [A⁻] = 0,00123 M.
[HA] = 0,18 M - 0,00123 M.
[HA] = 0,1787 M.
Ka = [H⁺] · [A⁻] / [HA].
Ka = (0,00123 M)² / 0,1787 M.
Ka = 8,46·10⁻⁶ M.
In an ionic bond, electrons are given and taken from atom to atom. Magnesium is +2 and Chlorine is -1 . The two chlorine atoms receive one electron each
