# What Is the Formula for Sulfate Ion?

Sulfate ion is a Polyatomic ion. The formula for sulfate ion is SO42-; and the formula for hydrogen sulfate ion (bisulfate ion) is HCO3-.
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Q&A Related to "What Is the Formula for Sulfate Ion?"
 SO42- is the formula for sulfate ion. http://www.chacha.com/question/what-is-the-formula...
 sodium : Na+ sulfate ion: SO2−4. http://answers.yahoo.com/question/index?qid=201007...
 Na + have a charge of +1. sulphates SO4 2- have a charge of -2. Somehow the formula must cancel out and render a neutral molecule. Thus the formula is ' Na. 2. SO. 4. 'the compound http://wiki.answers.com/Q/What_is_the_correct_form...