Interpretation: The oxidation state method of
Concept Introduction:
Oxidation: Oxidation can be defined as the process by which a molecule, atom or ion loses its electron in
Reduction: Reduction can be defined as the process by which a molecule, atom or ion gains electrons by one of atoms in a chemical reaction.
Oxidation number: Oxidation number is the number that tells about the number of electrons that were lost and number of electrons that were gained in chemical reaction.
Redox reactions: The type of chemical reaction where the transfer of electrons takes place between two species. In this reaction, there is a change in oxidation number which is indicated by lost or gain of electrons, ions or molecules.
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Chemistry: An Atoms First Approach
- The iron content of hemoglobin is determined by destroying the hemoglobin molecule and producing small water-soluble ions and molecules. The iron in the aqueous solution is reduced to iron(II) ion and then titrated against potassium permanganate. In the titration, iron(ll) is oxidized to iron(III) and permanganate is reduced to manganese(II) ion. A 5.00-g sample of hemoglobin requires 32.3 mL of a 0.002100 M solution of potassium permanganate. The reaction with permanganate ion is MnO4(aq)+8H+(aq)+5Fe2+(aq)Mn2+(aq)+5Fe3+(aq)+4H2O What is the mass percent of iron in hemoglobin?arrow_forwardComplete and balance the equations for the following acid-base neutralization reactions. If water is used as a solvent, write the reactants and products as aqueous ions. In some cases, there may be more than one correct answer, depending on the amounts of reactants used. (a) Mg(OH)2(s)+HCl4(aq) (b) SO3(g)+H2O(l) (assume an excess of water and that the product dissolves) (c) SrO(s)+H2SO4(l)arrow_forwardIn an ordinary flashlight battery, an oxidation reaction and a reduction reaction rake place at different locations to produce an electric current that consists of electrons. In one of the reactions, the zinc container of the battery slowly dissolves as it is converted into zinc ions. Is this the oxidation or the reduction reaction? Is this reaction the source of electrons, or are electrons used to carry out the reaction? Explain your answers with a reaction equation.arrow_forward
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- Why is the product of molar concentration and volume constant for a dilution problem?arrow_forwardWrite the balanced formula and net ionic equation for the reaction that occurs when the contents of the two beakers are added together. What colors represent the spectator ions in each reaction? mg src=Images/HTML_99425-7-17ALQ_image001.jpg alt="" align="top"/> mg src=Images/HTML_99425-7-17ALQ_image002.jpg alt="" align="top"/>arrow_forwardn general terms, what are the spectator ions in a precipitation reaction? Why are the spectator ions not included in writing the net ionic equation for a precipitation reaction? Does this mean that the spectator ions do not have to be present in the solution?arrow_forward
- Classify the reactions represented by the following unbalanced equations by as many methods as possible. Balance the equations. msp;I4O9(s)I2O6(s)+I2(s)+O2(g) msp;Mg(s)+AgNO3(aq)Mg(NO3)2(aq)+Ag(s) msp;SiCl4(l)+Mg(s)MgCl2(s)+Si(s) msp;CuCl2(aq)+AgNO3(aq)Cu(NO3)2(aq)+AgCl(s) msp;Al(s)+Br2(l)AlBr3(s)arrow_forwardWrite the balanced net ionic equation for the reaction that takes place when aqueous solutions of the following solutes are mixed. If no reaction is likely, explain why no reaction would be expected for that combination of solutes. l type='a'> potassium nitrate and sodium chloride calcium nitrate and sulfuric acid ammonium sulfide and lead(II) nitrate sodium carbonate and iron(III) chloride mercurous nitrate and calcium chloride silver acetate and potassium chloride i>phosphoric acid and calcium nitrate sulfuric acid and nickel(II) sulfatearrow_forwardThe Solvay process is multistep industrial method for the manufacture of sodium carbonate, Na2CO3, which is also known as washing soda. Although most of the industrialized world utilizes the Solvay process for production of sodium carbonate, it is not manufactured in the United States because it can be obtained at lower cost from a large natural deposit in Wyoming. Questions 19 through 22 are based on reactions in that process. Sodium carbonate is used for many purposes, including glass manufacturing. How much NaCl is needed to react completely with 83.0g of ammonium hydrogen carbonate in NaCl+NH4HCO3NaHCO3+NH4Cl?arrow_forward
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