Question

Based upon the ion charge of the following polyatomic ions, predict the formula for the following compounds. sulfate = SO4 -2 phosphate = PO4 -3 hydroxide = OH- sodium sulfate

NaSo4
Na2SO4
Na(SO4)2
NaSO8

Answer 1

Since the sodium ion is Na+, and sulfate is SO4(2-), you'll need 2 sodiums for a sulfate, making sodium sulfate Na2SO4.

Answer 2

The correct answer is
`Na_2SO_4`.

Step-by-step explanation:

Given polyatomic ions:

1) Sulfate =
`SO_(4)^(2-)`

2) Phosphate =
`PO_(4)^(-3)`

3) Hydroxide =
`OH^-`

The formula of Sodium sulfate will be:

`2Na^++ SO_(4)^(2-)\rightarrow Na_2SO_4`

Sodium carries 1+ charge and and sulfate ion carries 2-charge. In order to neutralize negative charge on sulfate ion two sodium ions will be needed.