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Equilibrium and Le Chateleir's Principal Instructions: Write the equilibrium expression for each chemical equation. 2 H2Sg⇌2H2g+S2g...

Equilibrium and Le Chateleir's Principal

Instructions: Write the equilibrium expression for each chemical equation.

  1. 2 H2Sg⇌2H2g+S2gKnxhxXZzTnHJYlF7p+PSX4jV9TRDPAnznmgZnP18
  2. NH4HSsNH3g+H2SgC5I7cPemtmlUCiHAG9nHs5CAHH35lh572BMZA2VY

Oxidation-Reduction Reactions

Instructions: Assign an oxidation state to each element, ion, or molecule.

  1. Cl-   
  2. Br2
  3. K  
  4. Ca2+

Instructions: Assign an oxidation state to each atom in each compound.

  1. NaClbiQAAAAASUVORK5CYII=
  2. CH4gr1OV0DSeP1U1ujve12aODkUszBvXBpgqUFJwXLn
  3. SbCl51NN0AAAAASUVORK5CYII=
  4. Al2O399dyaJMg63lnx182GZ9Yk8K+GWW+a7H3wGp5e0sK

Instructions: Assign an oxidation state to each atom in each polyatomic ion.

  1. NH4+Ov0xJxzt+jv9CU801DLFwVeHXLR2hPygnoJcC6u+
  2. Cl04-qtsOkg5eWuZtfFunR5S3oHgiugfgD6RzryUuJD9c
  3. Cr2072-cVKNTpnQMAAAAASUVORK5CYII=  
  4. Mn04-l+eKzmZZhszpDJz+Fd70V3T29+K5bsvhxdBO7bf8

Instructions: Identify the oxidation state of P in each ion.

  1. PO43-g87TAFVyASmWwAAAABJRU5ErkJggg==   
  2. HPO42-wPXnKhLP2UwaAAAAAASUVORK5CYII=
  3. H2PO4-ZdTus3+QIquxe42GQAAAAASUVORK5CYII=
  4. H3PO49oAAAAASUVORK5CYII=  
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Answer #1

i) 2 H2S(g) ====== 2H2(g) + S2(g)

Keq = [H2(g)]^2*[S2(g)]/[H2S(g)]^2

ii) NH4HS(S) ======= NH3(g) + H2S(g)

Keq = [NH3(g)]* [H2S(g)]

iii) oxidation state Cl in Cl- is -1

oxidation state of Br in Br2 is 0

oxidation state of K is 0

oxidation state of Ca in Ca2+ is +2

iv) In NaCl oxidation state of Na is +1 and that of Cl is -1

In CH4 oxidation state of C is -4 and that of H is +1

In SbCl5 oxidation state of Sb is +5 and that of Cl is -1

In Al2O3 oxidation state of Al is +3 and that of O is -2

v) In NH4+ oxidation state of N is -3 and that of H is +1

In ClO4- oxidation state of Cl is +7 and that of O is -2

In Cr2O7 2- oxidation state of Cr is +6 and that of O is -2

In MnO4- oxidation state of Mn is +7 and that of O is -2

vi) In PO43- oxidation state of P is +5

In HPO42- it is +5

In H2PO4- it is +5

In H3PO4 it is +5

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