Chemistry

posted by .

CONSIDER THE FOLLLOWING UNBALANCED REDOX EQUATION:
IO3^-(AQ) + Al(S)-->I2(S) + A;^3+(AQ)

A. WHAT IS THE OXDATION NUMBER OF IODINE IN THE IODATE ION? I GOT IO3^6(AQ)?

B. WHICH SPECIES IS THE REDUCING AGENT I GOT AL^3+(AQ)

C. USING THE OXIDATION AND REDUCTION HALF REACTIONS WRITE THE BALANCED REDOX EQUATION

  • Chemistry -

    I is +5 in IO3^-
    B is correct.
    What's the problem with C?
    Al^3+ + 3e ==> Al is one half cell
    The other one is
    2IO3^- + 10 e + 12H^+ = I2 +6H2O
    I assume an acid solution.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. CHEMISTRY

    Wondering If I did this correctly so far 50.0 ml of a 0.0500 M solution of lead (II) nitrate is mixed with 40.0 ml of a 0.200 M solution of sodium iodate at 25°C. Calculate the Pb2+ and IO3- concentrations when the mixture comes to …
  2. chemistry

    OKOK I know that I have posted this question but I just don't understand the last part. 50.0 ml of a 0.0500 M solution of lead (II) nitrate is mixed with 40.0 ml of a 0.200 M solution of sodium iodate at 25°C. Calculate the Pb2+ and …
  3. chemistry check 2

    I know you've read this question too many times already but I just want to make sure I did the last part (Ksp) correctly. 50.0 ml of a 0.0500 M solution of lead (II) nitrate is mixed with 40.0 ml of a 0.200 M solution of sodium iodate …
  4. AP Chemistry

    i'm having trouble balancing the redox reaction for the iodine clock lab. The redox reaction inovlves a hydrogen sulfite ion and iodate ion in an acidified solution. i have the final balanced equation, 5 HSO3 + 2 IO3 ---> I2 + 5SO4 …
  5. Chemistry

    Given these chemical reactions: Ca^(2+)(aq) + 2IO3^(-)(aq) → Ca(IO3)2(s) Ca(NO3)2·4H2O(s) → Ca^(2+)(aq) + 2NO3^(-)(aq) + 4H2O(l) KIO3(s) → K^(+)(aq) + IO3(-)(aq) Calculate the masses of Ca(NO3)2·4H2O(s) and KIO3(s) …
  6. Chemistry

    0.500 mol of Ca(IO3)2 contains ------ mol of iodine, I; to supply this much iodine,----- g of calcium iodate are needed. [Iodised salt contains a trace amount of calcium iodate, Ca(IO3)2, to help prevent a thyroid condition called …
  7. chemistry

    0.500 mol of Ca(IO3)2 contains(--------) mol of iodine, I; to supply this much iodine, 194.94 g of calcium iodate are needed. [Iodised salt contains a trace amount of calcium iodate, Ca(IO3)2, to help prevent a thyroid condition called …
  8. chemistry

    How many grams of lead(II) iodate, Pb(IO3)2 (formula weight = 557.0 g/mol), are precipitated when 3.20 × 102 mL of 0.285 M Pb(NO3)2(aq) are mixed with 386 mL of 0.512 M NaIO3(aq) solution?
  9. Chemistry

    a) Determine how many molesof I3 are produced by 1 mole of Cu(IO3)2. b)Determine the stoichiometric ratio between iodate and thiosulfate. c)Determine the molar solubity expression for Cu(IO3)2 For C) I got ksp=[Cu2+][IO3-]^2 Is this …
  10. Chem

    Sodium thiosulfate, Na2S2O3, is an important reagent for titrations. Its solutions can be standardized by titrating the iodine released when a weighed amount of potassium hydrogen iodate, KH(IO3)2 (389.912 g/mol), is allowed to react …

More Similar Questions