The ingestion of lead from food, water, or other environmental source can lead poisoning, a serious condition that affects the central nervous system, causing symptoms such as distractibility, lethargy, and loss of motor function. Lead poisoning treated with chelating agents, substances that bind to lead and allow it to be eliminated in urine. A modern chelating agent used for this purpose is succimer (C 4 H 6 O 4 S 2 ) suppose you are trying to determine the appropriate dose for succimer treatment of lead poisoning. Assume that a patient’s blood lead levels are 0.550 mg/L, that blood volume is 5.0 L, and that 1 mol of succimer binds 1 mol of lead. What minimum mass of succimer in milligrams is needed to bind all of the lead in this patient’s bloodstream?
The ingestion of lead from food, water, or other environmental source can lead poisoning, a serious condition that affects the central nervous system, causing symptoms such as distractibility, lethargy, and loss of motor function. Lead poisoning treated with chelating agents, substances that bind to lead and allow it to be eliminated in urine. A modern chelating agent used for this purpose is succimer (C 4 H 6 O 4 S 2 ) suppose you are trying to determine the appropriate dose for succimer treatment of lead poisoning. Assume that a patient’s blood lead levels are 0.550 mg/L, that blood volume is 5.0 L, and that 1 mol of succimer binds 1 mol of lead. What minimum mass of succimer in milligrams is needed to bind all of the lead in this patient’s bloodstream?
Solution Summary: The author explains the stoichiometric relationship between the moles of reactant and product. The conversion factor is obtained from the balanced chemical equation.
The ingestion of lead from food, water, or other environmental source can lead poisoning, a serious condition that affects the central nervous system, causing symptoms such as distractibility, lethargy, and loss of motor function. Lead poisoning treated with chelating agents, substances that bind to lead and allow it to be eliminated in urine. A modern chelating agent used for this purpose is succimer (C4H6O4S2) suppose you are trying to determine the appropriate dose for succimer treatment of lead poisoning. Assume that a patient’s blood lead levels are 0.550 mg/L, that blood volume is 5.0 L, and that 1 mol of succimer binds 1 mol of lead. What minimum mass of succimer in milligrams is needed to bind all of the lead in this patient’s bloodstream?
The table includes macrostates characterized by 4 energy levels (&) that are
equally spaced but with different degrees of occupation.
a) Calculate the energy of all the macrostates (in joules). See if they all have
the same energy and number of particles.
b) Calculate the macrostate that is most likely to exist. For this macrostate,
show that the population of the levels is consistent with the Boltzmann
distribution.
macrostate 1 macrostate 2 macrostate 3
ε/k (K) Populations
Populations
Populations
300
5
3
4
200
7
9
8
100
15
17
16
0
33
31
32
DATO: k = 1,38×10-23 J K-1
Don't used Ai solution
In an experiment, the viscosity of water was measured at different
temperatures and the table was constructed from the data obtained.
a) Calculate the activation energy of viscous flow (kJ/mol).
b) Calculate the viscosity at 30°C.
T/°C
0
20
40
60
80
η/cpoise 1,972 1,005 0,656 0,469 0,356
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Calorimetry Concept, Examples and Thermochemistry | How to Pass Chemistry; Author: Melissa Maribel;https://www.youtube.com/watch?v=nSh29lUGj00;License: Standard YouTube License, CC-BY