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Ch.16 - Acid-Base Equilibria
Chapter 16, Problem 43b

Calculate the pH of each of the following strong acid solutions: (b) 1.52 g of HNO3 in 575 mL of solution

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Strong Acids

Strong acids, such as nitric acid (HNO3), completely dissociate in water, meaning that all the acid molecules break apart into their constituent ions. This complete ionization is crucial for calculating the concentration of hydrogen ions (H+) in solution, which directly affects the pH.
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pH Scale

The pH scale is a logarithmic scale used to measure the acidity or basicity of a solution, ranging from 0 to 14. A pH of 7 is neutral, while values below 7 indicate acidic solutions and values above 7 indicate basic solutions. The pH is calculated using the formula pH = -log[H+], where [H+] is the concentration of hydrogen ions in moles per liter.
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Concentration Calculation

To calculate the concentration of H+ ions in a solution, one must first determine the number of moles of the solute (in this case, HNO3) and then divide by the volume of the solution in liters. The formula used is: concentration (M) = moles of solute / volume of solution (L). This concentration is essential for determining the pH of the solution.
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