How many moles of water molecules are in 6.81 g of magnesium sulfate heptahydrate (Epsom salts
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According to Arrhenius, bases are defined as substances that produce OH⁻ ions when they dissolve in water. The anion NO₂⁻ fits this definition as illustrated in the following reaction:
NO₂⁻(aq) + H₂O (l) HNO₂ (aq) + OH⁻(aq)
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