Question

How many hydroxide ions are in 1.2mol of Mg(OH)2(aq)?

Answer 1

Answer:

There are  5.0  moles hydroxide ions in  2.5  moles magnesium hydroxide.

Explanation:

The chemical formula  Mg(OH)2, indicates that there are two moles of hydroxide ions in each mole of the compound.

To determine the number of hydroxide ions in  2.5 mol Mg(OH)

2, multiply the moles of the compound by

$2.5mol Mg(OH){2} X\frac{2 mol OH^{-} }{1mol Mg(OH){2} } = 5.0 mol OH^{-}$

Hope it helps!!

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