Thioridazine, C 21 H 26 N 2 S 2 , is a pharmaceutical agent used to regulate dopamine (Dopamine, a neurotransmitter, affects brain processes that control movement emotional response, and ability to experience pleasure and pain.) A chemist can analyze a sample of the pharmaceutical for the thioridazine content by decomposing it to convert the sulfur in the compound to sulfate ion. This is then “trapped” as water-insoluble barium sulfate (see Figure 4.4). SO 4 2− (aq, from thioridazine) + BaCl 2 (aq) → BaSO 4 (s) + 2 Cl − (aq) Suppose a 12-tablet sample of the drug yielded 0.301 g of BaSO 4 . What is the thioridazine content, in milligrams, of each tablet?
Thioridazine, C 21 H 26 N 2 S 2 , is a pharmaceutical agent used to regulate dopamine (Dopamine, a neurotransmitter, affects brain processes that control movement emotional response, and ability to experience pleasure and pain.) A chemist can analyze a sample of the pharmaceutical for the thioridazine content by decomposing it to convert the sulfur in the compound to sulfate ion. This is then “trapped” as water-insoluble barium sulfate (see Figure 4.4). SO 4 2− (aq, from thioridazine) + BaCl 2 (aq) → BaSO 4 (s) + 2 Cl − (aq) Suppose a 12-tablet sample of the drug yielded 0.301 g of BaSO 4 . What is the thioridazine content, in milligrams, of each tablet?
Solution Summary: The author explains the relation between the number of moles and the mass of the substance. The balanced chemical equation is written in accordance with the Law of Conservation of Mass.
Thioridazine, C21H26N2S2, is a pharmaceutical agent used to regulate dopamine (Dopamine, a neurotransmitter, affects brain processes that control movement emotional response, and ability to experience pleasure and pain.) A chemist can analyze a sample of the pharmaceutical for the thioridazine content by decomposing it to convert the sulfur in the compound to sulfate ion. This is then “trapped” as water-insoluble barium sulfate (see Figure 4.4).
SO42−(aq, from thioridazine) + BaCl2(aq) → BaSO4(s) + 2 Cl−(aq)
Suppose a 12-tablet sample of the drug yielded 0.301 g of BaSO4. What is the thioridazine content, in milligrams, of each tablet?
5. A buffer consists of 0.45 M NH, and 0.25 M NH-CI (PK of NH 474) Calculate the pH of the butter. Ans: 9.52
BAS
PH-9.26 +10g (10.95))
14-4.59
PH=4.52
6. To 500 ml of the buffer on #5 a 0.20 g of sample of NaOH was added
a Write the net ionic equation for the reaction which occurs
b. Should the pH of the solution increase or decrease sightly?
Calculate the pH of the buffer after the addition Ans: 9.54
Explain the inductive effect (+I and -I) in benzene derivatives.
The inductive effect (+I and -I) in benzene derivatives, does it guide ortho, meta or para?
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell