Consider the following equation in aqueous solution: Cr.0, (aq) + S,0, (aq) → Cr* (aq) + S,0,²(aq) The oxidation half-reaction is 2 S,0,² (aq) → S,0,? (aq) + 2 e and the reduction half-reaction is Cr,0,²(aq) + 14 H*(aq) - 6 e electrons must be transferred in the overall balanced mol e 2 Cr (aq) + 7 H,O(1). What quantity in moles of eaction? 1 3 6. 8 +/- 2. 4- 7.

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Consider the following equation in aqueous solution:
Cr,0, (aq) + S,0,2²(aq) → Cr*(aq) + s,O(aq)
2 7
4 6
mol e
The oxidation half-reaction is 2 S,0,² (aq) →SO² (aq) + 2
e and the reduction half-reaction is Cr.O²(aq) + 14 H*(aq)
+6 e →2 Cr*(aq) + 7 HO(1). What quantity in moles of
electrons must be transferred in the overall balanced
reaction?
3
4
6.
2
2.
1
4.
6.
8.
+/-
0.
2.
5
Transcribed Image Text:Consider the following equation in aqueous solution: Cr,0, (aq) + S,0,2²(aq) → Cr*(aq) + s,O(aq) 2 7 4 6 mol e The oxidation half-reaction is 2 S,0,² (aq) →SO² (aq) + 2 e and the reduction half-reaction is Cr.O²(aq) + 14 H*(aq) +6 e →2 Cr*(aq) + 7 HO(1). What quantity in moles of electrons must be transferred in the overall balanced reaction? 3 4 6. 2 2. 1 4. 6. 8. +/- 0. 2. 5
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