Molecules consist of two or more atoms, and all molecules have a neutral charge.
If a molecule has a charge, we call it an <em>ion</em>.
For example, SO₃ is a sulfur trioxide <em>molecule</em>, but SO₃²⁻ is a sulfite <em>ion</em>.
Hey there!
pH = - log [ H⁺ ] = 3.52
[ H⁺ ] = 10^-pH
[ H⁺] = 10^ ( -3.52 )
[H⁺] = 3.02*10⁻⁴ M
[HA] =0.175 M
Therefore:
Ka = [ H⁺]* [A⁻] / [ HA]
Ka = (3.02*10⁻⁴)² / 0.175
Ka = 9.1204*10⁻⁸ / 0.175
Ka = 5.2*10⁻⁷
Hope that helps!
Methane + Oxygen -----> Carbon Dioxide + Water (+energy)
Answer:
Dark Matter
Explanation:
90 percent of the mass in the universe is dark matter
