35 Questions
Which of the following substances is an example of a base?
Sodium hydroxide (NaOH)
What are the characteristics of acids?
Taste sour, conduct electricity, low pH, corrosive
What is the potential of hydrogen (pH) scale used to measure?
Concentration of ions in a solution
Which acid is commonly found in lemon juice?
Citric acid
What type of reaction involves acids and metals?
Oxidation-reduction reaction
What happens when an acid loses one positive hydrogen ion in water?
It forms hydronium ions (H3O)
What is a characteristic of bases?
They conduct electricity as they contain ions
Which equation represents the dissociation of a base in water?
$NaOH + H2O → Na+ + OH- + H2O$
What is the relationship between the concentration of H+ ions and the pH in a solution of acids?
The higher the concentration of H+ ions, the lower the pH
What happens when acids and bases react to neutralize each other?
They form salt and water
Which reaction involves the production of CO2 gas?
$HCl + CaCO3 → CaCl2 + H2O + CO2$
What is titration used for?
To determine the concentration of an acid or a base
What is the function of litmus paper?
To identify if something is an acid or a base
What does the Universal pH indicator provide?
A color-based indication of pH level
What does a digital pH probe do?
It gives an exact number on the pH level
What does neutralization between acids and bases result in?
Salt and water
What happens when an acid loses one positive hydrogen ion in water?
It forms hydronium ions (H3O)
What is the chemical structure of sulfuric acid?
H2SO4
Which acid is found in lemon juice?
CH3COOH
What characteristic is common to all acids?
Conduct electricity as they contain ions
What happens when acids and metals react?
Formation of water and a salt
What is the pH scale used to measure?
Concentration of hydrogen ions in a solution
What is the function of litmus paper in testing for acidity or basicity?
Changes color to indicate whether a solution is acidic or basic
What happens when NH3 reacts with water?
NH4OH + OH-
Which reaction involves the production of CO2 gas?
acid + carbonates → salt + water + CO2 gas
What is the pH of a substance that has more H cations?
Lower
What does litmus paper indicate in testing for acidity or basicity?
Changes color based on the presence of H+ or OH- ions
How is the concentration of an unknown acid or base determined using titration?
By reaching a pH level of 7
What is the function of a digital pH probe?
Identifies the exact concentration of H+ ions in a solution
When acids and bases react to neutralize each other, what is formed?
Salt and water
What is the relationship between the concentration of OH- anions and the pH in a solution of bases?
Higher OH- concentration results in higher pH and stronger base
"Neutralization" refers to the reaction between acids and bases resulting in the formation of which compound?
Salt and Water
What is the main material used to determine the concentration of an unknown acid or base during titration?
Buret
What happens when an acid loses one positive hydrogen ion in water?
It increases the concentration of H+ ions in solution
Which material provides a numerical pH value based on color?
Universal pH indicator
Prepare for your unit 5 assessment on acids and bases by testing your knowledge of classifying acids and bases, using common acids and bases in reactions, identifying acid or base properties, measuring pH, and understanding reactions involving acids and metals as well as carbonates.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
