(a)
Interpretation:
The
Concept introduction:
- Redox
reactions are chemical reactions that are expressed in terms of reduction and oxidation half reactions. They involve transfer of electrons between two species - Oxidation reaction involves loss of electrons by one of the reactants whereas reduction is accompanied by gain of electrons by the other reactant.
(b)
Interpretation:
The redox reaction given below carried out in an acidic medium needs to be balanced
Concept introduction:
- Redox reactions are chemical reactions that are expressed in terms of reduction and oxidation half reactions. They involve transfer of electrons between two species
- Oxidation reaction involves loss of electrons by one of the reactants whereas reduction is accompanied by gain of electrons by the other reactant.
(c)
Interpretation:
The redox reaction given below carried out in an acidic medium needs to be balanced
Concept introduction:
- Redox reactions are chemical reactions that are expressed in terms of reduction and oxidation half reactions. They involve transfer of electrons between two species
- Oxidation reaction involves loss of electrons by one of the reactants whereas reduction is accompanied by gain of electrons by the other reactant.
(d)
Interpretation:
The redox reaction given below carried out in an acidic medium needs to be balanced
Concept introduction:
- Redox reactions are chemical reactions that are expressed in terms of reduction and oxidation half reactions. They involve transfer of electrons between two species
- Oxidation reaction involves loss of electrons by one of the reactants whereas reduction is accompanied by gain of electrons by the other reactant.
(e)
Interpretation:
The redox reaction given below carried out in an acidic medium needs to be balanced
Concept introduction:
- Redox reactions are chemical reactions that are expressed in terms of reduction and oxidation half reactions. They involve transfer of electrons between two species
- Oxidation reaction involves loss of electrons by one of the reactants whereas reduction is accompanied by gain of electrons by the other reactant.
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EBK GENERAL CHEMISTRY
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- Triiodide ions are generated in solution by the following (unbalanced) reaction in acidic solution: IO3(aq) + I(aq) I3(aq) Triiodide ion concentration is determined by titration with a sodium thiosulfate (Na2S2O3) solution. The products are iodide ion and tetrathionate ion (S4O6). a. Balance the equation for the reaction of IO3 with I ions. b. A sample of 0.6013 g of potassium iodate was dissolved in water. Hydrochloric acid and solid potassium iodide were then added. What is the minimum mass of solid KI and the minimum volume of 3.00 M HQ required to convert all of the IO3 ions to I ions? c. Write and balance the equation for the reaction of S2O32 with I3 in acidic solution. d. A 25.00-mL sample of a 0.0100 M solution of KIO. is reacted with an excess of KI. It requires 32.04 mL of Na2S2O3 solution to titrate the I3 ions present. What is the molarity of the Na2S2O3 solution? e. How would you prepare 500.0 mL of the KIO3 solution in part d using solid KIO3?arrow_forwardA mountain lake that is 4.0 km × 6.0 km with an average depth of 75 m has an H+(aq) concentration of 1.3 × 10−6 M. Calculate the mass of calcium carbonate that would have to be added to the lake to change the H+(aq) concentration to 6.3 × 10−8 M. Assume that all the carbonate is converted to carbon dioxide, which bubbles out of the solution.arrow_forwardWhich two of the following reactions are oxidation-reduction reactions? Explain your answer briefly. Classify the remaining reaction. (a) CdC12(aq) + Na2S(aq) CdS(s) + 2 NaCl(aq) (b) 2 Ca(s) + O2(g) 2 CaO(s) (c) 4 Fe(OH)2(s) + 2 H2O() + O2(g) 4 Fe(OH)3(s)arrow_forward
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