Questions: 43 746

Free Answers by our Experts: 42 109

How often do you need answers to your chemistry questions? Students face difficulties over and over again when solving their chemistry problems. One solution is to get answers to chemistry questions online. There are few resources that offer chemistry answers for free, and sometimes it takes hours to find an answer to the exact chemistry question you have. Some students need AP chemistry free response answers, some search for chemistry quiz answers or even exam review answers, while others have a hard time answering their chemistry worksheets or homework assignments. Chances are that someone has already asked for a solution to your chemistry problem, or at least to a similar one, and you will be able to view the answer online. However, more often than not, students realize that the answer to this particular chemistry question is nowhere to be found. We offer the perfect solution to your struggle with chemistry. If you have a problem in any branch of chemistry, including General, Organic, Inorganic, Analytical, Physical and Macromolecular Chemistry, and Biochemistry, our experts will gladly offer their professional help. Ask your question here and get chemistry answers quickly and to the point. If you need a solution to more advanced problems, such as AP chemistry free response questions, order now, and our chemistry experts will help you for a reasonable price.

Ask Your question

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Search & Filtering

Use as mild in alcoholic beverages.



________________2. It was never used for internally due to its highly toxic.



________________3. Alcohol used in the preparation of tooth paste to keep them moist.



________________4. Give the IUPAC name of CH30H.



________________5. Are hydroxy derivative of the hydrocarbons and which replace by OH group.


________________6. It contains 3-OH groups in polyhydric alcohol.



________________7. They are colorless, volatile liquids and compose 0f C5 to C11.



________________8. Methods which form form aldehyde into hydrolyzed primary alcohols.



________________9. Give the common name of CH3CH2OH.



________________10. GIVE THE COMMON NAME OF CH3-CH2—CH2--CH2-0H.






DICUSSION. Give and discuss the following.



Give and discuss the 2 pharmacologic action of alcohols.


Give the 3 methods of preparing alcohols.


Give the 4 uses of methyl alcohol.

Use as mild in alcoholic beverages.




________________2. It was never used for internally due to its highly toxic.




________________3. Alcohol used in the preparation of tooth paste to keep them moist.




________________4. Give the IUPAC name of CH30H.




________________5. Are hydroxy derivative of the hydrocarbons and which replace by OH group.



________________6. It contains 3-OH groups in polyhydric alcohol.




________________7. They are colorless, volatile liquids and compose 0f C5 to C11.




________________8. Methods which form form aldehyde into hydrolyzed primary alcohols.




________________9. Give the common name of CH3CH2OH.




________________10. GIVE THE COMMON NAME OF CH3-CH2—CH2--CH2-0H.







DICUSSION. Give and discuss the following.




Give and discuss the 2 pharmacologic action of alcohols.



Give the 3 methods of preparing alcohols.



Give the 4 uses of methyl alcohol.

Any remaining solid impurities are removed by filtration before continuing with the analysis. In a typical total analysis method, the procedure might read

After digesting the sample in a beaker, remove any solid impurities by passing the solution containing the analyte through filter paper, collecting the filtrate in a clean Erlenmeyer flask. Rinse the beaker with several small portions of solvent, passing these rinsings through the filter paper and collecting them in the same Erlenmeyer flask. Finally, rinse the filter paper with several portions of solvent, collecting the rinsings in the same Erlenmeyer flask.

For a typical concentration method, however, the procedure might state

After digesting the sample in a beaker, remove any solid impurities by filtering a portion of the solution containing the analyte. Collect and discard the first several mL of filtrate before collecting a sample of approximately 5 mL for further analysis.

Explain why these two procedures are different.


A method for the analysis of Ca2+ in water suffers from an interference in the presence of Zn2+. When the concentration of a Ca2+ is 50 times greater than that Zn2+, an analysis for Ca2+ gives a relative error of 2.0%. What is the value of the selectivity coefficient for this method?


A sample is analyzed to determine the concentration of an analyte. Under the conditions of the analysis the sensitivity is 17.2 ppm-1. What is the analyte’s concentration if S total is 35.2 and S reag is 0.6?


A certain concentration works best when the analyte’s concentration is approximately 10ppb.


a. If the method requires sample of 0.5mL, about what mass of analyte is being measured?

c. Repeat for the case where the analyte is present at 10% w/w. 59

d. Based on your answer to parts (a) - (c) comment on the method’s suitability for the determination of a major analyte.


Calculate the number of grams of AgNO3 needed to make 8.35 L of a 2.23 molar solution of AgNO3 ?


What is a physical property related to the structure and function of vanilla

The noble gas configuration of oxygen is



a buffer solution contains 0.5M of potassium carbonate and 0.5M of potassium hydrogen carbonate

estimate pH in this solution

estimate the buffer capacity against acid addition

ionisation constant of the acid is pK2 = 10.32


LATEST TUTORIALS
New on Blog
APPROVED BY CLIENTS