ACIDS AND BASES

Question 1

what is bronsted lowry defintion of an acid

Answer 1

acid is anything that donates proton

Question 2

what is bronsted lowry defintion of a base

Answer 2

base is anything that accepts proton

Question 3

what is an Arrhenius acid

Answer 3

produces hydrogen ions in aqueous solution

Question 4

what is Arrhenius base

Answer 4

produce hydroxide ions in aqueous solution

Question 5

what is a hydroxide

Answer 5

OH-

Question 6

what is a lewis definition of an acid

Answer 6

anything that accepts pair of electrons

Question 7

what is a lewis definition of an base

Answer 7

anything that donates electrons

Question 8

An acid is eased as

Answer 8

H+

Question 9

A base is eased as

Answer 9

OH-

Question 10

what does pH measure

Answer 10

hydrogen ion concentration

Question 11

how do you measure hydrogen ion concentration

Answer 11

pH = -log[H+]

[ ] = concentration

Question 12

what are the limits of pH value

Answer 12

can be anything as any H+ conc is possible but generally pH scale is 1-14

Question 13

at 25oc, what is pH of an acid, neutral and base

Answer 13

pH 7 = neutral
more than pH 7 = base
less than pH 7 = acid

Question 14

what happens as you go up one pH in the pH scale

Answer 14

you go up a tenfold in H+ concentration

Question 15

pH 3 represents what type of H+ concentration

Answer 15

10-3

Question 16

how does pH 3 DIFFER from pH 4 and pH 5

Answer 16

pH 3 is 10x bigger than pH 4
pH 3 is 100x bigger than pH 5

Question 17

how do you identify conjugate acids and bases

Answer 17

HA + H20 = A- + H20+

Question 18

in this equation, what is HA

HA + H20 = A- + H20+

Answer 18

HA = acid

donates protons
accepts electrons

Question 19

in this equation, what is H20

HA + H20 = A- + H20+

Answer 19

H2- = base

accepts protons
donates electrons