What is the sulfide ion formula?


Quick Answer

The sulfide ion formula is S2-. The sulfide ion is an additive with a molar mass of 32.065 g mol-1. Molar mass is necessary for completing calculations when using sulfide in chemistry experiments.

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Full Answer

Sulfide can undergo recombination using hydrogen to produce SH- or HS-. Either formula is correct, and the resulting conjugate acid is bisulfide. In an aqueous (liquid) solution sulfide ions can be neutralized. If S2- is added to H20, it becomes SH- + OH-. When using two hydrogen atoms alone, hydrogen sulfide (H2S) is produced. Hydrogen sulfide has a molar mass of 34.08 g/mol. The sulfide ion is a salt with a strong base, and any sodium sulfide is extremely corrosive and damaging to the skin.

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