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Ch.4 - Reactions in Aqueous Solution
McMurry - Chemistry 8th Edition
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모든 교과서McMurry 8th EditionCh.4 - Reactions in Aqueous Solution문제 42a
4장, 문제 42a

Classify each of the following unbalanced half-reactions as either an oxidation or a reduction. (a) HClO(aq) → Cl2(g)

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1
Identify the oxidation states of the elements in the reactants and products.
For HClO, assign oxidation states: H is +1, O is -2, and Cl is +1.
For Cl_2, assign oxidation states: each Cl is 0.
Determine the change in oxidation state for Cl: from +1 in HClO to 0 in Cl_2.
Since the oxidation state of Cl decreases, this half-reaction is a reduction.

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Oxidation and Reduction

Oxidation and reduction are chemical processes that involve the transfer of electrons between substances. Oxidation refers to the loss of electrons, resulting in an increase in oxidation state, while reduction involves the gain of electrons, leading to a decrease in oxidation state. These processes are often summarized by the mnemonic 'OIL RIG' (Oxidation Is Loss, Reduction Is Gain).
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Oxidation and Reduction Reactions

Oxidation States

Oxidation states (or oxidation numbers) are assigned to atoms in a compound to indicate their degree of oxidation or reduction. They help in tracking electron transfer during chemical reactions. For example, in HClO, chlorine has an oxidation state of +1, which changes to 0 in Cl2, indicating that chlorine is being reduced as it gains electrons.
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Oxidation Numbers

Half-Reactions

Half-reactions are equations that show either the oxidation or reduction process separately. They are useful for balancing redox reactions and understanding the electron transfer involved. In the given half-reaction, identifying whether it is an oxidation or reduction helps in classifying the overall reaction and balancing it appropriately.
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01:49
First-Order Half-Life
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Classify each of the following unbalanced half-reactions as either an oxidation or a reduction. (d) SbCl4-(aq) → SbCl6-(aq)

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Based on the positions in the periodic table, which of the following reactions would you expect to occur? (a) Red+ + Green → Red + Green+ (b) Blue + Green+ → Blue+ + Green (c) Red + Blue+ → Red+ + Blue

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The following pictures represent aqueous solutions of three acids HA (A = X, Y, or Z), with surrounding water mol-ecules omitted for clarity. Which of the three is the strongest acid, and which is the weakest?

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Assume that the electrical conductivity of a solution depends on the total concentration of dissolved ions and that you measure the conductivity of three different solutions while carrying out titration procedures: (a) Begin with 1.00 L of 0.100 M KCl, and titrate by adding 0.100 M AgNO3. (b) Begin with 1.00 L of 0.100 M HF, and titrate by adding 0.100 M KOH. (c) Begin with 1.00 L of 0.100 M BaCl2, and titrate by adding 0.100 M Na2SO4. Which of the following graphs corresponds to which titration?

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