How would dichromate ion, #Cr_2O_7^(2-)#, oxidize sulfide ion, #S^(2-)#, to give elemental sulfur? The reduction product is #Cr^(2+)#.
Are you sure that the dichromate is reduced to
Elemental sulfur is produced by oxidizing the sulfide anion.
All things considered.
PS: I would double-check your sources and lab manual; I'm not saying you're incorrect.
By signing up, you agree to our Terms of Service and Privacy Policy
The dichromate ion (Cr₂O₇²⁻) oxidizes sulfide ion (S²⁻) to elemental sulfur, with the reduction product being Cr²⁺. The balanced equation is:
[3 \text{S}^{2-} + 14 \text{H}^+ + \text{Cr}_2\text{O}_7^{2-} \rightarrow 3\text{S} + 2\text{Cr}^{2+} + 7\text{H}_2\text{O}]
By signing up, you agree to our Terms of Service and Privacy Policy
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
- Which identifies an element, the atomic number or atomic weight?
- An atom of sodium has 11 protons, 11 electrons,and 12 neutrons, what is its atomic number and mass number?
- What will happen if we mix egg yolk and vinegar and oil?
- What is the physical state of gasoline at room temperature?
- How can you compare the mass and charge of protons, neutrons and electrons?

- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7