What is the pH range of acids? What is the pH range for bases? What is the pH value of the strongest acid? What is the pH value of the strongest base? What is the pH value of the w... What is the pH range of acids? What is the pH range for bases? What is the pH value of the strongest acid? What is the pH value of the strongest base? What is the pH value of the weakest base? What is the pH value of the weakest acid? How much more acidic is one pH than the other? Write the word equations and the balanced chemical equation for the neutralization reaction between sulfuric acid and potassium hydrogen carbonate.
Understand the Problem
The question is asking about the pH range of acids and bases, the pH values of the strongest and weakest acids and bases, and how to calculate the relative acidity of different pH values. It also covers writing word equations for neutralization reactions.
Answer
Acids 0-7, bases 7-14; strongest acid pH 0, base pH 14. Reaction: sulfuric acid + potassium hydrogen carbonate -> potassium sulfate + water + CO2.
Acids have a pH range of 0-7, bases 7-14. Strongest acid pH = 0, strongest base pH = 14, weakest acid ~ pH 6, weakest base ~ pH 8. One pH unit difference means 10x change in acidity. Neutralization: sulfuric acid + potassium hydrogen carbonate -> potassium sulfate + water + carbon dioxide.
Answer for screen readers
Acids have a pH range of 0-7, bases 7-14. Strongest acid pH = 0, strongest base pH = 14, weakest acid ~ pH 6, weakest base ~ pH 8. One pH unit difference means 10x change in acidity. Neutralization: sulfuric acid + potassium hydrogen carbonate -> potassium sulfate + water + carbon dioxide.
More Information
The pH scale is logarithmic, so each integer step represents a tenfold increase or decrease in acidity/basicity. A neutralization reaction typically produces water and a salt.
Tips
A common mistake is not remembering the logarithmic nature of the pH scale which dictates that each whole number change represents a tenfold change in H+ ion concentration.
Sources
- pH Scale: Acids, bases, pH and buffers - Khan Academy - khanacademy.org
- Acids, Bases, & the pH Scale - Science Buddies - sciencebuddies.org
- pH of Strong & Weak Acids and Bases - CHEMISTRY COMMUNITY - lavelle.chem.ucla.edu
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