acids and bases

Question 1

buffer ka equation

Answer 1

ka = salt x H+ / acid

Question 2

kw water

Answer 2

H+ squared = kw

Question 3

strong base calcualtion

Answer 3

kw = oh- x h+

Question 4

strong acid calculation

Answer 4

ph = -logh+

Question 5

water dilution

Answer 5

work out new concentration with new total volume then standard calculations

Question 6

weak acid

Answer 6

ka = H+ squared/HA

Question 7

part neutralising buffer weak acid strong base

Answer 7

find moles of acid and oh-
find acid conc by doing moles acid minus moles oh-
take oh- to be salt conc for usual buffer ka equation