Practice problem
Which of the following situations would require a buffer?
A reaction between baking soda and acidic ingredients while baking, so that there wouldn't be a dangerous combination of acids and bases in the finished food.
A titration with a colored indicator so that the pH of an unknown substance could be determined.
In the bloodstream, so that the pH level doesn't significantly change due to CO2_{2}2 produced by respiration.
In a lake, so that acid rain doesn't result in the death of fish.
Type a concept, like “slope” or “photosynthesis”.
