What is the pH of a 0.005 M HCl solution? Assume complete dissociation.
Following is a table of data collected from one section of an 8 A.M. physiology lab. There were 20 students present, 10 men
and 10 women. Information collected from the students included their height, weight, age, and resting pulse rate. In
addition, the students were surveyed to see if they smoked cigarettes, considered themselves "regular exercisers," if they
had consumed caffeine the morning of the lab, and if they had eaten breakfast that day. A "y" or "n" (yes or no) was
recorded to indicate their answers. Each student did "jumping jacks" for 5 minutes and recorded the time required to
regain their resting heart rate, which is listed on the table as "recovery time." Finally, each student participated in an
exercise designed to measure their reaction time (in milliseconds) in catching an object dropped by a lab partner
according to specified criteria. Use this table to answer the following questions. Ignore statistical problems caused by
small sample size, and so on.
pH = 2.3. If pH = - log [H+] and HCl is a strong acid, we can assume complete dissociation will occur in solution.
You might also like to view...
Sodium and chloride atoms combine readily because they both lose electrons.
Answer the following statement true (T) or false (F)
Conductive activity in a neuron generally causes it to secrete
A. a specific neurotransmitter that either excites or inhibits its target. B. a specific neurotransmitter that always excites its target. C. several types of neurotransmitters simultaneously, all of which excite the cell's target. D. several types of neurotransmitters simultaneously, that are broadcast to excite and inhibit multiple targets. E. several types of neurotransmitters simultaneously, that all work to prevent another immediate impulse.
Which condition is stimulated by allergens and results in bronchoconstriction, airway inflammation, and difficulty in exhaling?
A. Emphysema B. Tuberculosis C. Pulmonary fibrosis D. Chronic bronchitis E. Asthma
Through which vessel is the velocity of blood flow the slowest?
a. aorta b. arterioles c. capillaries d. venules e. veins