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Identify the three systems of the body in which toxicants can enter, give a brief description of how this may occur, and provide an example of a toxicant that can enter the body through each system.
Your response should be at least 300 wrds and APA w/reference.
A doctor can send hair samples from a newborn infant to be analyzed in the lab to see if the mother drank alcohol during the pregnancy. This is one test that can be performed to assist in diagnosing fetal alcohol syndrome. Recalling what you know about elimination of toxicants, briefly explain why this test can be used to determine exposure to alcohol.
Your response should be at least 300 wrds and APA w/reference
What is the final molar concentration of every species remaining in aqueous solution of the following reaction
It is filled with helium at 23 oC and 0.991 atm and placed in an oil bath. To what temperature (oC) will the oil bath need to be heated to first open the safety valve?
a boy wants to prepare a 250ml of a buffer that is ph4.50. beginning with 100ml of 0.12 moll ch3cooh and a supply of
19.32 mL of .500 M NaOH solution is required to exactly neutralize a 10.00mL sample of vinegar. Assuming that all acidity of vinegar is attributable to acetic acid(HC2H3O2) what is the percent by weight of acetic acid in vinegar
Vitamin C (L-ascorbic acid; MW = 176.0 g/mol) is a weak acid (pKa = 4.863). Suppose a 500.0 mg tablet is dissolved in water and titrated with 0.100 M NaOH. How many mL of NaOH are required to reach the equivalence point?
What are the most common natural sweeteners? What are the most common artificial sweeteners?
The temperature scale is called °M and has a value of 0°M at the freezing point and 100°M at the boiling point of ethylene glycol. What would the temperature be in degrees centigrade, if it was 20.916°M
Explain how a calibration curve could be used to determine an unknown quantity
How many mL (to the nearest mL) of 0.200-M KF solution should be added to 660. mL of 0.193-M HF to prepare a pH = 3.30 solution
A gaseous mixture contains 450.0 Torr of H2(g), 358.7 Torr of N2(g), and 65.1 Torr of Ar(g). Calculate the mole fraction, X, of each of these gases.
Assuming the gasoline is pure octane (C8H18), how many liters of CO2 at STP will be produced from the combustion of 1.00 liter of gasoline. (assume the density of gasoline is 0.963 g/ mL).
A bioengineer preparing cells for a cloning experiment bathes a small piece of rat epithelial tissue in a TRIS buffer, (HOCH2)3CNH2. the buffer is made by dissolving 48.0 g TRIS (pkb=5.91) in enough 0.095 M HCl to make 1.00 L of solution.
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