Q1.COMPARE AND CONTRAST PROPERTIES OF ACID AND
BASE
Answers
Comparison chart
Acid versus Base comparison chart
Acid Base
Definition Arrhenius Definition: An acid is any chemical compound which when dissolved in water gives a solution with a hydrogen ion activity greater than in pure water. Bronstead Lowry Definition: An acid is an substance which donates a proton. Arrhenius Definition: A base is an aqueous substance that can accept hydrogen ions. Bronstead Lowry Definition: A base is any substance which accepts a proton.
pH (measure of concentration of hydrogen ions in a solution) Less than 7.0. Greater than 7.0 and could go up to 14 in case of stronger bases.
Physical characteristics Depending on the temperature, acids can occur in solid, liquid or gaseous form. Taste sour. Bases feel slippery because of the reaction of the base with the oils of your hand. Frequently solids except ammonia which is a gas. Taste bitter.
Strength depends on concentration of the hydronium ions depends on concentration of the hydroxide ions
Phenolphthalein remains colorless Makes it pink
Other Properties Electrolytes, conduct electricity (because electrolytes), react with many metals. Electrolytes, conduct electricity, ranges from insoluble to so soluble that they can react with water vapor.
Comparison chart continues below.
Dissociation Acids free hydrogen ions (H+) when mixed with water. Bases free hydroxide ions (OH-) when mixed with water.
Chemical Formula An acid has a chemical formula with H at the beginning of it. For example, HCl (Hydrochloric Acid). There is one exception to his rule, CH3COOH = Acetic Acid (vinegar) A base has a chemical formula with OH at the end of it.