Neutralization Reactions

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Presentation transcript:

Neutralization Reactions Despite heavy fire, McAllister’s aim was true, and his carefully measured hydrochloric acid found its mark in the enemy’s reservoir of sodium hydroxide McAllister grinned, one of the enemy’s strongest bases had finally been neutralized

Neutralization: An Acid Base Rxn Hydrochloric acid + sodium hydroxide ? HCl + NaOH NaCl + HOH Hydroxide ion ACID + BASE SALT + WATER Complete neutralization occurs when The acid H+ and the base OH- are 1:1

Double Replacement Reaction What kind of reaction? Double Replacement Reaction

Neutralization Reactions Phosphoric acid + ammonium hydroxide ? H3PO4 + NH4OH  3HOH + (NH4)3PO4 Magnesium hydroxide + nitric acid  ? Mg(OH)2 + 2HNO3  2HOH + Mg(NO3)2

Complete neutralization . . . Occurs when H+ and OH- are in a 1:1 molar ratio MaVa = MbVb BE CAREFUL If the H+ or OH- has a subscript you have to account for it in the formula. BECAUSE YOU NEED THE MOLARITY OF THE IONS....after ionization! Ex. If you have 1L of HCl, what M of HCl is necessary to neutralize 1L of 1M Mg(OH)2?

Neutralization practice 55mL of an 8M HCl solution is completely neutralized by 26mL of Ca(OH)2 Write the balanced neutralization reaction. What is the concentration of base that was used? What is the net ionic equation? What are the spectator ions?

Neutralization practice Write the balanced neutralization reaction. 2HCl + Ca(OH)2  2HOH + CaCl2 What is the concentration of base that was used? 8.46M What is the net ionic equation? H+ + OH-  HOH What are the spectator ions? Ca2+ + Cl-

THE END