Chemistry Archives - Essay Lane

Use data in table 1 to create the calibration curve; calculate the average absorbance for each standard, round the averages to 3 decimal places, and plot the graph of average absorbance versus concentrations.

Posted on June 25, 2022 by David

Summative Assessment – Raw Data In the following tables you will find the data needed to complete your lab report. Table 1shows the absorbance values of standard solutions of paracetamol in three repeats. In table2 you can find the absorbance values of solution C prepared into triplicate. Table1: absorbance values of standard solutionsStandard # 1 […]

List three examples of physical changes and three examples of chemical changes. Explain why these are chemical or physical changes.

Posted on June 24, 2022 by David

Exploring physical and chemical changes Pre-Laboratory Questions Explain the difference between a chemical change and a physical change. 2. List three examples of physical changes and three examples of chemical changes. Explain why these are chemical or physical changes.

It takes 254 kJ/mol to eject electrons from a certain metal surface. What is the longest wavelength of light (nm) that can be used to eject electrons from the surface of this metal via the photoelectric effect?

Posted on June 15, 2022 by David

Unit 2 Exam Review CHM 111 Chapter 21. The energy of a photon of light is __________ proportional to its frequency and __________proportional to its wavelength.A. directly, directlyB. inversely, inverselyC. inversely, directlyD. directly, inverselyE. indirectly, not2. What color of visible light has the longest wavelength?A. blueB. violetC. redD. yellowE. green3. What is the frequency of […]

Briefly describe your ionic compound. What are some of its physical and chemical properties? Does it react to other molecules? If so, which ones? the equation for at least one example.Write out

Posted on June 15, 2022 by David

Address the questions listed below fully with complete sentences. Make sure to put it in your own words, paraphrasing and summarizing. Only use quotes when necessary, citing all sources used. Do make sure to apply the appropriate in-text citations when necessary. Make sure to review the Instructions page for this assignment as well. Create an “Introduction” […]

Why would calcium homeostasis be impaired in response to removal of the thyroid gland? What could be used to specifically destroy the thyroid gland and have minimal effects on other cells and tissues in the body?

Posted on June 13, 2022 by David

PATHOPHYSIOLOGY 3 Discussion, this week, will focus on the thyroid. Respond to the following statements and questions, using the included case study, in your discussion submission. Discussion Assignment: Thyroid hormones exert their effects on cells in a manner similar to steroid hormones; describe the mechanism of action of thyroid hormones. Why would an imbalance in […]

Research and read about Green Chemistry principles and discuss some real-world examples.

Posted on June 10, 2022 by David

Synthesis https://www.acs.org/content/acs/en/greenchemistry/principles/12-principles-of-green-chemistry.html In the pharmaceutical and material industry, there is often a multi-step process to synthesize a product to be sold. Depending on how many steps there are and how efficient each step is will determine what kind of overall yield the process has. In efforts to improve efficiency and reduce waste, often companies will […]

Remind us what your law is in a sentence or two, And then explain your real-life example, try to be as specific as possible.

Posted on June 10, 2022 by David

Gas Laws If we lived on another planet, such as Mars, we would be very aware of how precious Earth’s atmosphere is for life on your planet. Our atmosphere contains a delicate balance of gasses such as oxygen, nitrogen, argon, carbon dioxide, to mention a few. You might not give the composition of our atmosphere […]

Pick an occupation that you know must use solution chemistry. Describe what that career is and how one gets trained for it. Describe how the chemical principle you have identified is used by the individual in that career. Give some examples.

Posted on June 10, 2022 by David

Solution chemistry In this topic, you will focus on one particular career and specifically describe how that career uses solution chemistry. Key terms to search for might include careers/jobs related to chemical mixing, anesthesiologist, petrochemical engineers, etc. A website such as ACS.org’s career site may be a good place to start. Wherever you decide to […]

Research and briefly describe a real-life application of chemical equilibrium. How do we as a society benefit from equilibrium-driven processes?

Posted on June 10, 2022 by David

Chemical equilibrium Watch le chatelier’s principal chemical equilibrium on youtube then answer the question Le Chatelier’s principle | Chemical equilibrium | Chemistry | Khan Academy In our text, we cover various topics, such as Reversible Chemical Reactions, Equilibrium, Equilibrium Constants (using and calculating), and Le Châtelier’s Principle. Pick one of the above-mentioned topics and relate […]

Nuclear chemistry is now widely used in the field of medicine and has played a vital role when it comes to diagnosing and treating diseases. In this project, research and explore a specific radioactive isotope and how it is used in medicine.

Posted on June 3, 2022 by David

Chemistry and measurement Medical Isotopes Overview: Nuclear chemistry is now widely used in the field of medicine and has played a vital role when it comes to diagnosing and treating diseases. In this project, research and explore a specific radioactive isotope and how it is used in medicine.