609 week 9 prelab Jason Jong

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Document1 - Word Search (Alt+Q) References Mailings Review View Help Write the corresponding letters to the following descriptions. Each proposal can be associated with 0 or 1 match and each letter is not necessarily associated with a proposal. a. [Ar] 4s? b. 1s 2s2p63s23p3 c. 1s2s2p2 d. [Ne] 3s23ps e. [Ar] 4s23d10 f. 1s22s! g. None of those answers 1. I am a halogen 2. I am a transition metal 3. I am alkaline 4. I have exactly 2 single electrons 5. I am the smallest of the atoms presented here 6. I have exactly 3 valence electrons 7.I am the most paramagnetic of the atoms presented here 8. I am the copper 9.I am isoelectronic with Ti2+ IF cessibility: Good to go IA 16 SIS

H J K L Enter V B N M Shift Chapter 2 An Introduction to the Chemistry of Life 37 SELF-QUIZ: TESTING YOUR KNOWLEDGE 1. Each atom has a nucleus made up of р. 24. 2. In atoms, the number of protons is usually equal to the number of 3. The atomic number of an atom is equal to the number of 7. Proteins and carbohydrates consist primarily of carbon, hydrogen, and oxygen; these two molecules are types of and neutrons. -compounds. p. 31. 8. On the pH scale, a pH of is neutral; a solution with a pH less than this is this is 9. Chemicals like bicarbonate that resist pH change are called р. 25. and a solution with a pH greater than р. 32, in the nucleus. p. 26. 4 An alternative form of an atom is called an differs in the number of neutrons in the nucleus. p. 26. 5. A bond formed between two atoms that share electrons is called it p. 33. 10. When water molecules dissociate, they form and ions. p. 32. bond. p. 28. bonds form between oppositely charged atoms of a(n) polar covalent bonds of…

alt ons for Free Response Questions FRQ 1: 0/5 To spectrophotometrically determine the mass percent of cobalt in an ore containing cobalt and some inert materials, solutions with known [Co?) are prepared and absorbance of each of the solutions is measured at the wavelength of optimum absorbance. The data are used to create a calibration plot, shown below. 0.90- 0.80- 0.70 0.60 0.50 0.40- 0.30 0.20- 0.10- 0.00- 0.005 0.010 Concentration (M) 0.015 A 0.630 g sample of the ore is completely dissolved in concentrated HNO3(aq). The mixture is diluted with water to a final volume of 50.00 ml. Assume that all the cobalt in the ore sample is converted to Co2+(aq). a. What is the [Co2] in the solution if the absorbance of a sample of the solution is 0.74? 13 ✗ b. Calculate the number of moles of Co2+(aq) in the 50.00 mL solution. 0.008 mols Co

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Show a sample calculation of how you converted your initial (t = 0) absorbance reading into a concentration. Copy and paste your three graphs below. Sample graph titles: “Determination of whether n = [insert order]”. Red    Time (min)  A  0  0.617  10  0.536  20  0.456  30  0.375  40  0.294  50  0.214  60  0.133      εb (L/mol)  79.1  Write what is the differential rate law. Predict how fast the reaction would go if the original concentration were tripled. Explain your logic. Use the integrated rate law to predict the concentration at 75 min. Show your calculation here. Calculate the half-life of the reactant at 75 min. Show your work here.

The students conducted the assay for LDH activity using the two serum samples. Each cuvette (path length 1 cm) contained 3ml of a suitable assay buffer (including pyruvate as substrate). 20 microlitres of either serum was added to the cuvette and the absorbance values immediately recorded at the optimum wavelength for a period of 5 minutes (absorbance readings taken every 30 seconds).   Protein concentration of serum sample (mg/ml) Change in absorbance at optimum wavelength per minute Control serum (C) 8 -0.04 Diseased serum (D) 7.8 -0.6 1c. Using the molar absorption coefficient of NADH as 6220 M-1 cm-1, and by application of the Beer-Lambert law, estimate the enzyme activity in the two samples (C and D). Express activity as moles per second.  1d. Estimate the specific activity of the two samples (moles per second per microgram).

Explain why is FAAS a good method of quantifying Ca in milk?

PLEASE Answer within 20-30 minutes. Thank you!

O Homework in Chem101 - due Su X My Questions | bartleby ( Periodic Table – Royal Society of how to take a screenshot on an + A learn.maricopa.edu/courses/1132256/modules/items/19018052 CHM151 17003 > Modules > Weeks 8 & 9 - Chapter 7 > Homework in Chem101 - due Sunday night CG 2020 FALL CRED Question 37 of 4 Submit Account Home Complete the balanced neutralization equation for the reaction below: Announcements Dashboa |Modules HCIO-(aq) + CSОН(ag) — rd Concourse Syllabus Courses Grades D2+ N3+ D4+ Cisco Webex Groups 1 2 3 4 7 8 9. Tutoring/Learning Center Calendar Os Do Inbox (s) (1) (g) (aq) History Cs H CI Help • Previous Next » Library 1:03 PM O Type here to search 10/18/2020 +

Separate each into paramagnetic and diamagnetic

Firefox File Edit View History Bookmarks Tools Window Help my.CSMD.edu I Module 12 HW Chi wr NWP Assessme X De Module 9 HW Cha W NWP Assessment I Module 11 HW Che w NWP Assessment O 8 https://education.wiley.com/was/ui/v2/assessment-player/index.html?launchld=b0085ec6-77d3-4053-89d4-c26a8188beb3- E Module 12 HW Chapter 21 - Selected Exercises Question 5 of 8 -/1 E Starting with diethyl malonate, and using any other reagents of your choice, show how you would prepare the following compound: Fill 1) ? 2) ? Que Multi EtO 3)? 4) ? 5) ? Choose from the following list of reagents: OEt HO. Ques Multipa Questi A B D Multistep CH3Br LIAIH4 LDA NaOEt / EtOH Viewing Multipart Question E G H. Molecular Dra NaOH EtBr MgBr, H,O H20, heat heat Question 7 Multipart Question 8 Multistep MacBook Air esc F2 F3 F4 FS F10 @ 23 $ % & 1 2 3 4 7 8 W E R Y tab A S D F caps lock C V shift alt coms control option command

Shown here is a Lewis structure for the chlorate ion, CIO3 , that expands the octet to minimize formal charge and if necessary places negative formal charges on the most electronegative atom(s). What is the formal charge on CI? :ö: Multiple Choice -1 +1 None of the above

To determine the amount of copper and the identity of the copper compound in the unknown sample, a 100-mL solution containing 120.8 mg of the sample was initially prepared. Then, 5.00 mL of this solution was pipetted and diluted with deionized water in another 100-mL volumetric flask. The absorbance of this diluted solution was determined three times at the analytical wavelength. The data is in the table below.    Unknown sample Trial 1 Trial 2 Trial 3 Absorbance (AU) 0.388 0.389 0.388 What is the concentration of Cu in analyzed solution (mg/L) for each trial?

+ terface/acellus_engine.htm?ClassID=1467683063 Use the data below to determine the mass ratio of iron to oxygen for compound 2. Compound 1 2 Et onal Academy of Science. All Rights Reserved. Mass Fe (grams) 15.55 20.98 [20:1 Enter the answer that belongs in the green box. Iron Ratio Cmpd 2 Mass O (grams) 4.45 9.02 Sh Enter

Answer question number 7 on the attached document

Answer the questions using one of the words or phrases from the following list. We suggest that you copy and paste answers as it avoids mis-spellings and typos. Accuracy Precision False positive False negative Detection limit Blank Linear range Spike Limit of quantitation Internal standard Please provide the terms for each definition If a patient does not have COVID, but a test results says that they do? How close your experimental result is to the "true" answer? When you run an unknown and then repeat the analysis after adding a known amount of analyte? When you run a solution known to have a zero concentration of your analyte? The lowest concentration of an analyte which can be reported with an accurate concentration? If a patient does have COVID, but a test results says that they do not? How close multiple sample replicate results are to each other? When you run a solution with a known concentration of a compound which is not your analyte? The lowest concentration of an analyte…

Please answer all and post below the answer the source from where you got the answer thank you!