CHM2132_DGD_assign6_2023 (1)

what is the concentration of the unknown sample using serial diluitions: 0.05M 1.7472nm, 0.025M 0.8569nm, 0.0125M 0.4167nm, 0.00625M 0.1958nm the epsilon value is 0.0101 and l is 1 cm

Real life applications of standardization of NaOH.

Read and interpret the following information using the following abstract from a scientific journal article. In 2-3 sentences, summarize what you understand from this research

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

You work in a research organization that is looking for markers of various diseases that can be used as a diagnostic for the disease. It has been reported in the past that high levels of Cu are found in the sweat of people with cystic fibrosis. One of the research projects is focused on looking for high levels of Cu in samples that can be obtained non-invasively such as saliva, sweat, hair, nails, etc. The lab will analyze large samples for Cu. What instrument would you recommend purchasing to support this work, Atomic absorption spectrophotometer or an inductively coupled plasma atomic spectrophotometer? Explain the basis for your decision.

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OnCourse Connect Assessment: Chemistry x Copy of spread_of_islar x = The Spread of Islam -G x M Inbox (904) - aarojame A Classes boncourseconnect.com/assessment/1651879/5287e2a3-0d0b-e2c0-c15c-3e68a37149b4 D TPSS Bookmarks CHEMISTRY BENCHMARK TEST 01 CHEMISTRY I 12-7 (AARON JAMES, ID: 12390724) A student dissolved 15 grams of pure acetic acid (CH,COOH) in enough water to make 100. milliliters of solution. Given the atomic masses provided on the periodic table, what is the molarity (M) of the acetic acid solution? a 0.025 molar D0.40 molar © 2.5 molar O 4 molar A B B 1 2 4 5 6 7 8 9 10 3. O Save/Exit 4 sn TESS

G neural crest tissue - Google Sear x A CHM 112 112-1 and 112-E1 A Presentation Session Student + 8 https://app.peardeck.com/student/twkkhzvar For quick access, place your favorites here on the favorites bar. Manage favorites now Peardeck Exercises Use #3. Nitol6) + 3 Fa(6)Z NF(1) + 3 HF(G) [1: 5,0 x10°n 0.10M Calculat K 2.0M 3.5 x 10°M Pear Deck Interactive Slide Students, draw anywhere on this slide! Do not remove this bar Slide 1/2

18) 08 Veek 6 Homework # 6 Week 6 Homework Topic: Week 6 Recorded X Marc Foster's Personal M X + stuniversity.edu/courses/6957/assignments/165042 Maps EReading 5 of 16 MISSED THIS? Watch KCV 11.9; Read Section 11.9. You can click on the Review link to access the section in your e Text. The hydrogen gas formed in a chemical reaction is collected over water at 30 °C at a total pressure of 732 mm Hg . The vapor pressure of water at 30 °C is 31.8 mm Hg. deos Part A What is the partial pressure of the hydrogen gas collected in this way? Express your answer in millimeters of mercury to three significant figures. tions PH, mm Hg Next - Previous 2:14 PM 85°F Sunny 10/3/2021 ASUS VivoBook delete insert prt sc home F12 Pgdn f10 end 因 94 61 f5 backspace & 5 6 24 4. 9. 3.

За. Bromine and methanoic acid react in aqueous solution. Br, (aq) + HCO0Н (ад) — 2Br (aq) + 2H" (аq) + Со, (g) The reaction was monitored by measuring the volume of carbon dioxide produced as time progressed. o 5 10 15 20 25 [Source: © International Baccalaureate Organization 2019] 30 20 40 60 80 100 120 140 160 Time / s [Source: © International Baccalaureate Organization 2019] Determine from the graph the rate of reaction at 20 s, in cm³ s1, showing your working. 3b. Outline, with a reason, another property that could be monitored to measure the rate of this reaction. 3c. Describe one systematic error associated with the use of the gas syringe, and how the error affects the calculated rate. 3d. Identify one error associated with the use of an accurate stopwatch. Volume of carbon dioxide / cm T m mm mo

OnCourse Connect Assessment: Chemistry x 4 Copy of spread of jslar x E The Spread of Islam - G x M Inbox (904) - aarojame: x A Classes oncourseconnect.com/assessment/1651879/5287e2a3-0d0b-e2c0-c15c-3e68a37149b4 O TPSS Bookmarks CHEMISTRY BENCHMARK TEST 01 CHEMISTRY I 12-7 (AARON JAMES, ID: 12390724) Potassium (K) reacts with oxygen gas (O,) to form potassium oxide (K,O). Which equation for this reaction is correctly balanced? K+O2 K,0 2K + O2 K20 4K+ O2 2K20 4K+202 2K,0 35 Save/Exit 26 27 28 29 30 31 3R 33 34 ttps://www.oncourseconnect.com/assessment/1651879/5287e2a3-0d0b-e2c0-c15c-3e68a37149b4# B.

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…

Please upload your full solution to the following problem. For the experimental isotherm data given below, determine the Freundlich and Langmuir isotherm parameters. Apply linear regression to determine the isotherm parameters. A spreadsheet can be used for this purpose. Which of the two isotherms better describes the data? Experimental data: Carbon type: F-400 Carbon size: 200 × 400 . Chemical: Trichloroethene, C₂HCl3 (131.39 g/mol) Temperature: 13 C pH: 7.5-8 Equilibrium time: 31 days ● Ⓡ B B Sample number 123456 TCE Liquid-Phase Concentration CA. μmol/L 23.6 6.67 3.26 0.322 0.169 0.114 TCE Adsorbent-Phase Concentration 9A, μmol/g 737 450 318 121 85.2 75.8 2

Part A incorrect you filled in 4 of 5 blanks incorrectly

(Related to Checkpoint 5.5) (Solving for n ) Jack asked Jill to marry him, and she has accepted under one condition: Jack must buy her a new $320,000 Rolls- Royce Phantom. Jack currently has $16,260 that he may invest. He has found a mutual fund with an expected annual return of 7.5 percent in which he will place the money. How long will it take Jack to win Jill's hand in marriage? Ignore taxes and inflation. The number of years it will take for Jack to win Jill's hand in marriage is years. (Round to one decimal place.) C (Related to Checkpoint 5.5) (Solving for n) Jack asked Jill to marry him, and she has accepted under one condition: Jack must buy her a new $320,000 Rolls-Royce Phantom. Jack currently has $16,260 that he may invest. He has found a mutual fund with an expected annual return of 7.5 percent in which he will place the money. How long will it take Jack to win Jill's hand in marriage? Ignore taxes and inflation. The number of years it will take for Jack to win Jill's hand…

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File Edit View History Bookmarks Profiles Tab Window Help Chrome dt8827@unc X aModule 11 F X My Wellness x A ALEKS - Day x A ALEKS - Re Watch Gilmo x A www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-lgNslkr7j8P3jH-lvdWKW_BBZZI6tTytly4Fcfu6zOtOf8oMM9svvsLU ps Spotify Web Playe. M Common Ethical D. O CHEMICAL REACTIONS Interconverting number of atoms and mass of compound Calculate the number of oxygen atoms in a 120.0 g sample of diphosphorus pentoxide (P,O,). Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits. Explanation Check © 202 APR 18

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Scientists study the impact of changing only one component of a cancer treatment in a laboratory. Which of the following describes the study? controlled experiment observational study conceptual model computational study

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According to Falk and Fehr (2003), what are three objections to lab experiments? Meyer (1995) lists nine threats to internal validity of natural experiments. Describe three.

How would you do part C, please show all your work on a piece of paper and explain why is like that.

Please don't provide handwritten solution ....

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Help me solve part C please.