Elemento Símbolo A qué grupo pertenece A qué periodo pertenece N° de niveles de energía N° de protones y electrones que tiene el elemento químico Potasio
Azufre
Oxigeno
Bromo
Polonio
Francio
Estroncio
Neón
Hidrogeno
Calcio
Cloro
Yodo
Aluminio

10-14. (a) when 100.0 ml of weak acid ha were titrated with 0.093 81 m naoh, 27.63 ml were required to reach the equivalence point. find the molarity of ha. (b) what is the formal concentration of a- at the equivalence point? (c) the ph at the equivalence point was 10.99. find pk. for ha. (d) what was the ph when only 19.47 ml of naoh had been added?

When the mercury level in a barometer decreases that atmospheric pressure has

Avogradoa number was calculated by determining the number of atoms in?