Topic: Neutralization Reaction Do Now:. Neutralization Reactions AcidAcid HX(aq)MOH(aq) HX(aq) + MOH(aq) → MX(aq) +H 2 O(l) + Base → Salt + Water DR rxn.

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Presentation transcript:

Topic: Neutralization Reaction Do Now:

Neutralization Reactions AcidAcid HX(aq)MOH(aq) HX(aq) + MOH(aq) → MX(aq) +H 2 O(l) + Base → Salt + Water DR rxn Why is it called a neutralization reaction?

Hydrochloric Acid + Sodium Hydroxide yields ?? Is it balanced?? HCl(aq) + NaOH(aq)  NaCl(aq) + H 2 O(l) Complete ionic equation H +1 (aq) + Cl -1 (aq) + Na +1 (aq) + OH -1 (aq)  H 2 O(l) + Na +1 (aq) +Cl -1 (aq) H +1 (aq) + OH -1 (aq)  H 2 O(l) Net ionic equation

Sulfuric Acid + Calcium Hydroxide yields?? Is it balanced?? H 2 SO 4 (aq) + Ca(OH) 2 (aq)  CaSO 4 (aq) + H 2 O(l) Complete ionic equation 2H +1 (aq) + SO 4 -2 (aq) + Ca +2 (aq) + 2OH -1 (aq)  2H 2 O(l) + Ca +2 (aq) + SO 4 -2 (aq) 2H +1 (aq) + 2OH -1 (aq)  2H 2 O(l) Net ionic equation 2

For any neutralization reaction between an acid & base: net ionic equation net ionic equation is always H +1 (aq) + OH -1 (aq)  H 2 O(l) H +1 (aq) + OH -1 (aq)  H 2 O(l) neutralization point: At neutralization point: # moles H +1 = # moles OH -1

pH changes during neutralization Start with an acid Add a base At neutralization Start with a base Add an acid At neutralization pH < 7 pH  pH = 7 pH > 7 pH  pH = 7