Discuss the Chemistry of Metal Reactivity and Acid Etching.
Discuss the Chemistry of Metal Reactivity and Acid Etching.
What are nanomembranes, their applications, their advantages and disadvantages.
/in Chemistry /by EuniceWrite a term paper about the application of nanotechnology in water research
application type: nanomembranes
write about: what are nanomembranes, their applications, their advantages and disadvantages, Nanofiltration, what is nanofiltration, applications, advantages and disadvantages, filtration spectrum of different systems, Nanocomposite membranes (not CNT), Self-assembling membranes, Aquaporin-based membrane, a pressure-driven process in the membrane and energy, how nanomembranes are made that arent the fibre ones.
paper should include:
Abstract
Introduction
Literature review
tables and figures
suggested improvements
conclusion
nomenclature
Prepare a 2-3 page picture-essay of the applications of chemistry tied to the lab work for this term.
/in Chemistry /by EunicePrepare a 2-3 page picture-essay of the applications of chemistry tied to the lab work for this term. Select at least 5 different themes or examples. Have at least 10 pictures or visual items. Prepare a written lab report covering the visual aspects of the experiments and applications you covered in the lab. Focus on pictures and practical chemistry. Post the document to Canvas in PDF format.
Determine nutritional contents of Shiitake Mushroom
/in Chemistry /by EuniceFood Chemistry, Determine nutritional contents of Shiitake Mushroom
Describe the VSEPR geometry around at least 3 of the central atoms.
/in Chemistry /by EuniceChoose a molecule that you would like to investigate. Be sure that it contains at least 10 atoms. Describe any interesting physical or chemical properties of the molecule and why you chose it.
Draw or download an image of the 2-D structure of the molecule. Be sure to cite your source.
Describe the VSEPR geometry around at least 3 of the central atoms.
Search for the 3D structure online. A possible source is 3Dchem.com. List your source and describe important features of your molecule.
Is the shape involved with the function of your molecule?
Discuss the application of hyperbaric chambers in treatment of some diseases.
/in Chemistry /by EuniceDiscuss the application of hyperbaric chambers in treatment of some diseases.
A student forgot to put the lid back on the calorimeter after mixing NaOH pellet with HCl solution. How does it affect the value of ΔHreaction2 ?
/in Chemistry /by EuniceShow that the two equations for reactions 1 and 3 shown below can be added algebraically to give the equation for reaction 2 in the middle. NaOH(s) Na+(aq) + OH– (aq) Reaction 1 NaOH(s) + H+(aq) + Cl– (aq) H2O(l) + Na+(aq) + Cl– (aq) Reaction 2 Na+(aq) + OH–(aq) + H+(aq) + Cl–(aq) H2O(l) + Na+(aq) + Cl–(aq) Reaction 3
5 2. Applying Hess’s Law and the result from the previous question, calculate the theoretical ΔH for reaction 2 using only the experimental ΔH values for reactions 1 and 3. NaOH(s) Na+(aq) + OH– (aq) ΔHreaction1 NaOH(s) + H+(aq) + Cl– (aq) H2O(l) + Na+(aq) + Cl– (aq) ΔHreaction2 Na+(aq) + OH–(aq) + H+(aq) + Cl–(aq) H2O(l) + Na+(aq) + Cl–(aq) ΔHreaction33. Compare the theoretically calculated enthalpy of reaction, ΔHtheoretical, for reaction 2 (from the previous question) with the experimentally determined enthalpy of reaction, ΔHexperimental, for reaction 2 (from simulation). Calculate the absolute difference between ΔHtheoretical and ΔHexperimental. Show your calculations. 4. If the absolute difference between ΔHtheoretical and ΔHexperimental is equal or less than 10 kJ/mol, then assume that the difference is negligible and that ΔHtheoretical = ΔHexperimental. According to your virtual experimental results, is Hess’s Law valid? Explain.
6 5. In reaction 1, a student measured the temperature of the resultant solution when some NaOH pellets were still left in the calorimeter. How does it affect the value of ΔHreaction1 ? 6. In reaction 2, a student forgot to put the lid back on the calorimeter after mixing NaOH pellet with HCl solution. How does it affect the value of ΔHreaction2 ? 7. In reaction 3, a student left the solution stirring for 30 min while talking to a friend. How does it affect the value of ΔHreaction3 ? 8. In this experiment, we assumed the density of water or any solution is 1.00 g/mL and that the specific heat capacity of any solution is 4.184 J/(g·°C) to simplify the calculation. List another assumption we made in this experiment.
Demonstrate understanding of the molecular and cellular mechanisms involved in metabolic pathways through the relationship between biochemical and biotechnological systems
/in Chemistry /by EuniceDemonstrate understanding of the molecular and cellular mechanisms involved in metabolic pathways through the relationship between biochemical and biotechnological systems
What are the major advantages to NaBH4 over LiAlH4?
/in Chemistry /by EuniceJust answer the 5 questions below for this lab:
1.What are the major advantages to NaBH4 over LiAlH4?
2.A percent yield as calculated in the video would not be accurate. Why not?
3.Draw the four enantionmers of the product and label the stereochemistry of the chiral centers.
4.What is the IUPAC name of hydrobenzoin?
5.What major signal in the IR and 1H NMR would you expect to appear if the conversion is complete?
Discuss the Synthesis and characterization of Dibenzalacetone
/in Chemistry /by EuniceDiscuss the Synthesis and characterization of Dibenzalacetone
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