Using incorrect concentrations. If your vitamin C standard solution is too concentrated or your iodine titration solution is too diluted, or your starch indicator solution is not between 0.5 to 1.0%, it may require much more than 50 mL of iodine solution to titrate the standard solution and/or orange juice.
The following summarizes some common causes of fatigue but is not meant to be comprehensive: Metabolic/endocrine: anemia; hypothyroidism; diabetes; electrolyte abnormalities; kidney disease; liver disease; Cushing's disease.
Causes of Similar Symptoms to Extreme fatigue. Research the causes of these symptoms that are similar to, or related to, the symptom Extreme fatigue: 1  Fatigue (3235 causes). 2  Chronic fatigue syndrome (3 causes). 3  Muscle weakness (4300 causes). 4  Tiredness (669 causes).