A lake has been acid fied by acid rain, resulting in a pH of 4.15. The lake has a volume or 165, U minututus. To neutralize the lake, it's been proposed that calcium hydroxide could be added to the lake.
a. Write a chemical equation to show how calcium hydroxide will help neutralize the lake:
(2App)
b. What mass of calcium hydroxide is needed to restore the lake to a healthy pH of 6.0 ?
(4 App)
c. Most lakes in Canada either have a lakebed made of either granite (a lighly insoluble rock), or limestene ( CaCO_(3) ). Explain why lakes with a gunite base would be more wilnerable to acidification than lakes with a limestone bese.
(2Comm)