Writing Assignment: Write an Experimental Procedures, Results, and Discussion sections for labs 6 and 7 in the format of Journal of Biological Chemistry (JBC). This should include details such that an experienced biochemist could reproduce the experiments from the kinetics and inhibition experiments you performed. Also, be sure to discuss the data as though you’re […]
In a paper explain why is the difference between a physical or chemical change?
Essay Assignment In a paper explain why is the difference between a physical or chemical change?
Determine the structure of the compound, provide a fragmentation reaction—meaning mechanism–from the molecular ion giving the base peak, and identify two bands in the IR consistent with your proposed structure.
Compound Structure Identify fragment patterns and IR peaks of the following structure. Relative Intensity 100 – 80 – 60 – 40 – MS-Itd-9540 20 – 0 I II 11111 I I dhirlI 11111 CI 7n 40 o II ‘i 120 140 160 rn/z II I 1 11 1 11 11 1 11 I 180 LULl […]
What is the ionic charge for this element : Ca?
IONIC CHARGE What is the ionic charge for this element : Ca?
Show your calculations. Liquid acetaldehyde (C₂H₄O) is flowing through a pipe at a rate of 235 m³ /h. What is the mass flow rate of this stream in kg/min?
Assignment 3 Liquid acetaldehyde (C₂H₄O) is flowing through a pipe at a rate of 235 m³ /h. (a)What is the mass flow rate of this stream in kg/min? , (b)What is the molar flow rate in mol/s?
Explain what is the APB? How does the APB strengthening happen?
ASSIGNMENT The anti-phase boundary (APB) strengthening is the main strengthening mechanism for Ni superalloys. What is the APB. How does the APB strengthening happen? (15 points) Ni superalloys are the choice for mechanical structures in space applications at 650~1,100°C because they provide both high strength and good oxidation/corrosion resistance. For the majority of engineering materials, […]
What are the atomic packing factors of BCC, FCC and HCP? Does the volume increase or decrease when FCC iron changes to BCC iron? Why?
HW of ETM 307 Chapter 4 of ETM307: Crystal Structure 80 points in total What are crystalline materials? What are non-crystalline materials (5 points) What is allotropic? What is polymorphic? (5 points) What are unit cell, lattice constant and the number of atoms per unit cell? What is the number of atoms of BCC, FCC […]
After watching the second video, explain in your own words the comparison the author makes regarding emission taxes and antibiotics.
Antibiotics Part I What is your stand regarding the use of antibiotics and the risk of bacteria outbreaks? Do you think the government should ban the use of antibiotics in animals used for consumption? Explain your answer. After watching the second video, explain in your own words the comparison the author makes regarding emission taxes […]
Why do chemists believe that these mechanisms are accurate models for chemical reactions? Do primary alkyl halides such as 1-chlorobutane really react mostly via an SN2 pathway?
Nucleophilic Substitution Reaction We have covered nucleophilic substitution reactions in class. These are extremely important reactions both for synthesis in lab and in biological systems. This lab gives you a chance to carry out a nucleophilic substitution reaction, and a chance to experience how scientists determine the mechanism which governs a reaction. When organic chemistry […]
Briefly explain the basic steps of the analytical procedure(s) for each of the methods. Which controls and/or standards were used in this study?
ANALYSIS Write/type up a critical analysis of the findings of this paper. Your analysis should address the following questions: What was the purpose/objective of this study? What was the analyte? Which methods were used? Briefly explain the basic steps of the analytical procedure(s) for each of the methods. Which controls and/or standards were used in […]