Assume that acid rain has lowered the pH of a particular lake to pH 5.0. What is the hydroxide ion concentration of this lake?
A) 1 × 10-9 mol of hydroxide ions per liter of lake water
B) 1 × 10-5 mol of hydroxide ions per liter of lake water
C) 5.0 M hydroxide ion
D) 5.0 × 10-5 mol of hydroxide ions per liter of lake water
Ans: A) 1 × 10-9 mol of hydroxide ions per liter of lake water
You might also like to view...
61 different tRNAs are required for translation both in vivo and in vitro
Indicate whether the statement is true or false
With one exception, members of the same
species always share the following things. Select the exception.
a. morphology b. biochemistry c. behavioral traits d. geography e. the same genus
Sarcomas are cancers of the ____
a. liver b. brain c. bone marrow d. muscle and bone e. lymphoid tissue
Approximately how old is life on Earth?
A) 36 billion years old B) 3.6 billion years old C) 360 million years old D) 36 million years old