Ascorbic acid is vitamin C and is essential for good health. It is found in a wide variety of fruits, vegetables and fortified foods. Some examples -- oranges and other citrus fruits,...
The pKa of ascorbic acid is only 4.2, so it is a weak acid. You can calculate the percent dissociation of a 0.1 M ascorbic acid solution using its Ka, and you will find that it is a small value.