How can a chemical reaction be sped up?Select from the drop-down menu to correctly complete the statement.
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2.4 × 10⁻² is the pH of a solution
What is the short definition of pH?
- The pH scale determines how acidic or basic water is. The range is 0 to 14, with 7 representing neutrality. Acidity is indicated by pH values below 7, whereas baseness is shown by pH values above 7.
- In reality, pH is a measurement of the proportion of free hydrogen and hydroxyl ions in water.
Equation representing the i onization of Na₃PO₄ is as fallow
Na₃PO₄ → PO₄³⁻ + 3Na⁺
Concentration of Na₃PO₄ =
Since 1 mol of Na₃PO₄ forms 1 mol of PO₄³⁻ [ PO₄³⁻ ] = [ Na₃PO₄ ] = 0.164 M
Equation representing the i onization of HPO²⁻₄ is as fallow
HPO²⁻₄ → PO₄³⁻ + H⁺
Acidionization constant Ka₃ of HPO²⁻₄ = 4. 17 × 10⁻¹³
Baseionization constant Kb₃ of PO₄³⁻ = Ka₃/ Kb₃
= 1 .0 × 10⁻¹⁴/ 4. 17 × 10⁻¹³ = 2.4 × 10⁻²
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