'Naoh aq' diaporamas de présentation

Acid-Base Equilibria

Acid-Base Equilibria. The reaction of weak acids with water, OR the reaction of weak bases with water, always results in an equilibrium!! The equilibrium constant for the reaction of a weak acid with water is K a. [H 3 O+] [F - ]. K a =. [HF]. Acid-Base Equilibria.

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Chapter 11

Chapter 11. Chemical Reactions. Writing Chemical Equations. Word Equations Names of reactants on the left of an arrow separated by plus signs Names of products to the right of the arrow separated by plus signs Ex: flour + water + yeast + salt ? bread

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Solutions

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Sodium hydroxide and hydrobromic acid

Sodium hydroxide and hydrobromic acid. NaOH (aq) +HBr (aq) ?NaBr (aq) +H 2 O (l). OH - (aq) +H + (aq) ?H 2 O (l). Propane combusts. 2C 4 H 10(g) +O 2(g) ?8CO 2(g) + 10H 2 O (l). 2C 4 H 10(g) +O 2(g) ?8CO 2(g) + 10H 2 O (l). Potassium and water. 2K (s) +2H 2 0 (l) ?2KOH (aq) +H 2(g).

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ELECTROCHEMISTRY AS

ELECTROCHEMISTRY AS. Redox reactions Oxidation : loses electrons/oxidation number increases /loses hydrogen/accepts oxygen Reduction : accepts electrons/oxidation number decreases /accepts hydrogen/loses oxygen Calculation of oxidation numbers. APPLICATIONS OF ELECTROLYSIS

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Chapter 1

Chapter 1. Properties of Solutions. Table of Contents. Introduction Nature of Solutions Solubility Mixing Aqueous Solutions Hydrolysis. Properties of Solutions. Chapter 1. Warm Up. Make a list of mixtures. Separate your list into homogeneous and heterogeneous.

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Chapter 4 Reactions in Aqueous Solution

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Chapter 11 Chemical Reactions

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Lecture 41 - Electrochemistry V

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Definitions of Acids and Bases

Definitions of Acids and Bases. Chemistry Mrs. Coyle. Common Acids. Vinegar (acetic or ethanoic acid). Citric Acid. Characteristics of Acids. Sour taste (for edible acids) May burn your skin Turn litmus paper from blue to red . Examples of Acids. HCl Hydrochloric Acid

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Determination of enthalpy change of neutralization

Determination of enthalpy change of neutralization. vs. HCI(aq). NH. (aq). 3. Dilution of HCl(aq). 50.00 cm 3 of HCl(aq) was diluted to 250.0 cm 3 Pipette and pipette filler Volumetric flask. Standardization of HCl(aq). Burette End point of indicator Burette reading.

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Chemical Reactions

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pOH

pOH. What is the [H + ]?. If the [H + ] = 1 x 10 -7 M, the pH = 7. That works well with acids, but what about bases? Consider sodium hydroxide: NaOH(aq) ? Na + + OH - What is the [H + ]?. We need a new formula!!. Since bases release hyroxides, OH - , we will calculate the pOH.

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Neutralization Reactions

Neutralization Reactions. Acid-Base Reactions. Reactions in which an acid and a base react in an aqueous solution to produce a salt and water are generally called neutralization reactions . Salts and Their Applications. Titration.

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What Charlie Taught Me By: Jared H

What Charlie Taught Me By: Jared H. Decomposition . Phosphorous Trichloride decomposes into phosphorous + chlorine PCl 3(S) ?. Decomposition . Phosphorous Trichloride decomposes into phosphorous + chlorine 2 PCl 3(S) ? 2P (S) + 3Cl 2(G)

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AS Chemistry cation identification tests a visual guide

AS Chemistry cation identification tests a visual guide. Designed by Samuel Millar. KEY. suspected aqueous cation (colour indicated). precipitate. solution. smoke. reagent solution:. {. NaOH (aq) sodium hydroxide solution NH 3 (aq) ammonium hydroxide solution

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Titration of 0.0250 dm 3 0.1M HCl (aq) with NaOH (aq)

Titration of 0.0250 dm 3 0.1M HCl (aq) with NaOH (aq). Titration of 0.0250 dm 3 0.1M CH 3 COOH (aq) with NaOH (aq). Titration of 0.0250 dm 3 0.1M NH 3 (aq) with HCl (aq). Titration of 0.0250 dm 3 0.1M CH 3 COOH (aq) with NH 3 (aq).

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Aqueous Solutions & Precipitates Separating Metal Ions / Flow Charts

Aqueous Solutions & Precipitates Separating Metal Ions / Flow Charts. Dr. Ron Rusay.

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Heats of reaction

Heats of reaction. NaOH(s) ? NaOH(aq) ?H= -4 3 .5 kJ NaOH(s) + HCl(aq) ? NaCl(aq) + H 2 O ?H= -97. 0 kJ NaOH(aq) + HCl(aq) ? NaCl(aq) + H 2 O ?H= -5 0 .2 kJ. NaOH dissolves (goes from solid to aqueous) NaOH dissolves and there is a reaction (neutralization) between NaOH and HCl

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Reactions of Halogenoalkanes

Reactions of Halogenoalkanes. Reflux Conc. NaOH(aq). Warm with NH 3 in a sealed. Halogenoalkanes RX. KCN in C 2 H 5 OH Warm distillation. Friedel-Crafts Reaction Benzene AlCl 3 /HCl(aq). (i) Reflux with KOH(alc) (ii) Distil off alkene.

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