Titration of HCl and NaOH
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Questions and Answers

What is the significance of the equivalence point in the titration of HCl and NaOH?

It is the point at which exactly enough NaOH has been added to react with all of the HCl.

What is the chemical equation for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)?

HCl + NaOH -> NaCl + H2O

What is the role of phenolphthalein in the titration process?

Phenolphthalein changes from colorless to purple around the equivalence point, indicating the transition from acidic to basic solutions.

What is the Ka value for hydrochloric acid at 25°C?

<p>1.3 * 10^6</p> Signup and view all the answers

What is the common name for hydrochloric acid?

<p>Muriatic acid</p> Signup and view all the answers

Describe the titration mechanism for the reaction between HCl and NaOH.

<p>The titrant (NaOH) is added slowly to the unknown solution, reacting away the HCl until the equivalence point is reached.</p> Signup and view all the answers

What is the color of phenolphthalein in acidic solutions?

<p>Colorless</p> Signup and view all the answers

What does the transition from acidic to basic solutions indicate in the titration process?

<p>It signifies the completion of the reaction at the equivalence point.</p> Signup and view all the answers

What is the chemical classification of hydrochloric acid?

<p>Strong acid</p> Signup and view all the answers

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