Chapter 15 Concepts Flashcards
What are the properties of aqueous acids?
sour, change acid-base indicator color, electrolytes, react with metals to produce H2
What are five properties of aqueous bases?
bitter, slippery, change acid-base indicator’s color, electrolytes
None of the food you eat are _____
bases (except for milk of magnesia)
How did Arrhenius define an acid and a base?
A: H-containing cmpnds that ionize to yield H+ in a aq. solution. B: ionize to yield OH- in a solution
NaOH is commonly known as ____
lye
Arhenius defines A and B _______ and ______ include certain substances that have acidic or basic properties.
narrowly; does not; ex. Na2CO3 and NH3
What distinguishes an acid from a base in the Brønsted-Lowry theory?
A: H-ion donor. B: H-ion acceptor
How did Lewis define an acid and a base?
A: accepts pair of electrons in a reaction. B: donates a pair of electrons. More general than B-L
How are [H+] and [OH−] related in an aqueous solution?
product of the H-ion concentration and the OH-ion concentration equals 1.0 × 10-14
What is the most important characteristic of an acid-base indicator?
its acid form and base form have different colors in solution
What are some names of H+ ions in water?
protons, hydrogen ions, hydronium ions
indicator
an acid or a base that undergoes dissociation in a known pH range
disadvantages of indicators
effect of temperature variation, use in colored solutions, effect of dissolved salts= solution is pH paper
What are the products of the reaction of an acid with a base?
water and one of a class of compounds called salts
What is the endpoint of a titration?
The point of neutralization
