'Phosphoric acid solution' diaporamas de présentation

Chapter 10 Acids and Bases

Chapter 10 Acids and Bases. Acids and Bases. Arrhenius Acids and Bases. Acids produce H + in aqueous solutions water HCl H + (aq) + Cl - (aq) Bases produce OH - in aqueous solutions water NaOH Na + (aq) + OH - (aq). Acids.

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Chapter 13: Acids & Bases

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Chapter 8 Acids and Bases

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Reactions in Aqueous Solutions II: Calculations

Reactions in Aqueous Solutions II: Calculations. Chapter 11. Calculations Involving Molarity. Review sections on molarity and percent by mass (Chapter 3)

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4-Aminoantipyrine as corrosion inhibitor for zinc in phosphoric acid

The corrosion of zinc in phosphoric acid containing 4-aminoantipyrine has been studied at different acid concentrations, inhibitor concentration and temperatures. Corrosion increases with the concentration of acid and the temperature. Inhibition efficiency (I.E.) of 4-aminoantipyrine increases with the concentration of inhibitor and decreases with the increase in concentration of acid. As temperature increases, percentage of inhibition decreases. The plot of log (θ/1-θ) versus log C results in a straight line suggest that the inhibitors cover both the anodic and cathodic regions through general adsorption following Longmuir isotherm. Galvenostatic polarization curves show polarization of both anode as well as cathode.

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