It depends on what you are measuring. Cups is a measure of volume. Pounds measures weight/mass. Water would be two cups per pound at standard temperature.
Approximately 3.2 cups
About 2.2 cups
One pound is three cups
1 cup is one cup
that is approximately 3.6 cups
About 20 cups.
About 2.1 cups
About 1.9 cups
That is about 47 cups
That is 12 cups
That is 1.8 cups
There are approximately 2.3 cups of citric acid in 1 lb.