Chemistry, stochiometry2

The no. Of moles of KMnO4 that will be needed to react with one mole of sulphite ion in acidic solution is.......

  1. 👍 0
  2. 👎 0
  3. 👁 67
asked by Aman

  1. Balance the equations:

    Oxidise Sulfite:
    _ SO3{2-} + _ H2O = _ SO4{2-} + _ H{+} + _ e{-}

    Reduce Permanganate in acid:
    _ KMnO4 + _ H{+} + _ e{-} = _ K{+} + _ Mn{2+} + _ H2O

    Combine the half equations:
    _ KMnO4 + _ H2SO3 = _ K2SO4 + _ MnSO4 + _ H2SO4 + _ H2O

    1. 👍 0
    2. 👎 0
    posted by Graham

  2. 2/5

    1. 👍 0
    2. 👎 0
    posted by Anonymous

  3. 2/5

    1. 👍 0
    2. 👎 0
    posted by Pranav Yadav

Respond to this Question

First Name

Your Response

Similar Questions

  1. stoichiometry

    Ammonia gas reacts with oxygen gas according to the following equation: 4NH3 + 5O2----4NO + 6H2O a. How many moles of oxygen gas are needed to react with 23 moles of ammonia? (29 mole) b. How may grams of NO are produced when 25

    asked by Jonathan on February 9, 2011

  2. Chemistry

    According to the balanced equation 6 moles of carbon dioxide will react with 6 moles of water to produce 1 mole of sugar and 6 moles of oxygen. What are the molar masses of the following compounds from the photosynthesis equation?

    asked by Lyssa on February 4, 2012

  3. 11th grade Chemistry

    [mole-mole] How many moles of NaOH are needed to react with 5.0 moles of sulfuric acid, H2SO4??? Equation: H2SO4 + 2 NaOH ---> Na2 SO4 +2 H2 O

    asked by Jenny on March 30, 2009

  4. Chemistry

    2 KMnO4 + 5 H2C2O4 + 3 H2SO4 ---> 2 MnSO4 + 10 CO2 + 8 H2O + K2SO4 How many milliliters of a 0.123 M KMnO4 solution is needed to react completely with 3.141 of oxalic acid? Please help I've worked this every way I know.

    asked by Tyler on October 28, 2015

  5. chemistry lab

    what is the number of moles of a 0.05 M KMnO4 solution that react with 20 ml of a 0.02 M solution of FeCl2 if 75 ml of KMnO4 was required

    asked by shawnette on March 22, 2018

  6. Chemistry

    The number of moles of KMnO4 required to react with 5 moles of H2O2 in acidic medium is ?

    asked by Clandestine on April 15, 2013

  7. chemistry

    How many moles of A1 are needed to react with each mole of CuSO4 in the reaction 2AI + 3CuSO4 -> 3Cu + AI2(SO4)3.

    asked by Brian on November 26, 2011

  8. Chemistry

    I need help setting up this problem. How many milliliters of 0.203 M KMnO4 are needed to react with 3.64 g of iron(II) sulfate, FeSO4? The reaction is as follows. 10 FeSO4(aq) + 2 KMnO4(aq) + 8 H2SO4(aq) → 5 Fe2(SO4)3(aq) + 2

    asked by Amanda on October 21, 2009

  9. chemistry

    Benzene, C6H6, is a known carcinogen that burns in air according to the following unbalanced equation: C6H6(l) + O2(g)  CO2(g) + H2O(g) a. What is the mole ratio of O2 to C6H6? b. How many moles of O2 are required to react with

    asked by ABCD on July 3, 2011

  10. chemistry

    0.1 mole of kmno4 react with excess of h2o2 then volume of o2 liberated

    asked by chintu on January 6, 2013

More Similar Questions