Buffer
Buffer
A solution containing a weak acid and its salt (or a weak base and its salt); which tends to resist
changes in pH.
Buffer region
Buffer region
The region of a titration curve in which the concentration of a conjugate acid is approximately
equal to that of the corresponding base. The pH remains relatively constant when small amounts of
H+ or OH– are added because of the combination of these ions with the buffer species already in
solution.
Calorie (cal)
Calorie (cal)
A unit of thermal energy (1 cal = 4.184 J).Calorimeter
Calorimeter
An apparatus used to measure the heat absorbed or released by a reaction.Carbohydrates
Carbohydrates
A compound with the general formula Cn(H 2 O)m. Carbon datingCarbon dating
Carbon dating
A technique for estimating the age of (ancient) objects by measuring the amount of radioactive