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.

00:40 A < 50 8 allall 85% Due Date for Submission: Friday, 25th October @ 4:06 PM UNIVERSITY OF PAPUA NEW GUINEA SCHOOL OF NATURAL AND PHYSICAL SCIENCES CHEMISTRY DISCIPLINE 1.10203 Chemistry 1B - Assignment No. 3 Please note that all assignments must be submitted in handwritten form; printed submissions will not be accepted. Additionally, ensure that you submit your work directly to your assigned tutor. Failure to do so will result in a zero mark. This process has been streamlined to prevent misplaced assignments and to avoid complaints at the end of the semester. If you have submitted your work to the wrong tutor, retrieve it and submit it to the correct one to avoid any penalties or issues later on. Name: ID#: 1. Study the following reactions and draw their reaction mechanisms A (a) (b) Edit < CH3CH2CH2CI AICI 3 CH2CH2CH3 CH3CH2CCI AICI3 Ова CH2CH3 Group:, H CH3 CH3 Score: Page 1 of 6 Annotate Fill & Sign Convert All O

Commun x Bb Blackboard Collaborate Ultra -2 X General Psychology-Fall 20 O X A ALEKS - Griffin Barden - Learn ww-awa.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-JcZzdcvSCzsqTCIDqNGV3bKqhMfPmUcQ4ENkmiXn9QCwgeDPDkQ06yszYWESPcekwL0-Qg619rekU7404HgFAGBEZaDr080?1oBw7QYjibavbSPXtx-YCjsh_7mMmrq#item O THERMOCHEMISTRY Griffin V Using Hess's Law to calculate net reaction enthalpy Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. In the first step, nitrogen and hydrogen react to form ammonia: N,(g) + 3 H,(g) → 2 NH3(g) AH=-92. kJ In the second step, ammonia and oxygen react to form nitric acid and water: NH3(g) + 20,(g) HNO3(g) H,O(g) AH=-330. kJ – + Calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. dla Round your answer to the nearest kJ. kJ

We are stuck on 9.  We get how Q is 16 and rxn goes left.   at eq 2+ x.    2 + x.    -2 x We get x= 1.    Therefore  k = 4.  Please help us.   Questin 9.  See conditions from 8 This is not a graded question as it is a practice question . I am 60 years old and helping my son prepare for the AP exam in a few months. We do questions at the back of the textbook by Zumdahl and Zumdahl

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

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

Tetrachloromethane(CC14)is accidentally spilled on a bench in the laboratory. Describe a safety clean-up procedure briefly. (Hint: MSDS and PPE)

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 do question 5 for me and please don’t return in it just write one sentence for each box

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

Bb Tangipahoa P A Classes O Thomas Willia x E THOMAS WILL O OnCourse Con x E The Spread of x A Assessment: C x G disseminate ir x b oncourseconnect.com/assessment/1651875/41774aa4-b498-clc9-30b9-e734c5204a10 O TPSS Bookmarks CHEMISTRY BENCHMARK TEST 01 CHEMISTRY I 12-3 (THOMAS WILLIAMS, ID: 12390719) 2 of 35 Each equation shows a radioactive isotope giving off some form of radiation, labeled X. Which equation suggests that an alpha particle is being emitted? yC – 4N + }X SU – Th + ;X Be + He ?C + ;x O Co + on - 9Co + X A 8 10 Ne 2 4 5 6 7 Save/Exit 1

I need answer expert solutions and step by step

How long is a microcentury, if a lecture period (50.0 min) is close to 1.00 microcentury?

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

O Copy of spread ofjsla X E The Spread of Islam M Inbox (904) - aarojame x A Classes oncourseconnect.com/assessment/1651879/5287e2a3-0d0b-e2c0-c15c-3e68a37149b4 D TPSS Bookmarks CHEMISTRY BENCHMARK TEST 01 CHEMISTRY I 12-7 (AARON JAMES ID 12390724) Use the reaction equation to answer the question. Zn + Pb(NO3)2 - Pb + Zn(NO3)2 The reaction shown took place when a student placed a piece of zinc (Zn) metal in a solution of lead nitrate (Pb(NO,)2). Which statement correctly describes the oxidation and reduction that occurred in the reaction? Zn was oxidized and Pb was reduced. DPb was oxidized and O was reduced. N was oxidized and Zn was reduced. OO was oxidized and N was reduced. A Save/Exit 24 25 26 27 28 29 30 31 32 33 https://www.oncourseconnect.com/assessment/1651879/5287e2a3-0dob-e2c0-c15c-3e68a37149b4#

Aime Dater Page No. - lag (2x1)+log141 2X10 me [4]

I don't  know what Me is they need to give me credit for the wrong answer ty please draw complete

medicinal chemistry

You are interested to know the Q10 value for mean heart rate (# of beats/10 sec) for a species of crab for the temperature interval of 25°C - 35°C. To find this value, you collect data for these six temperatures and calculate mean heart rate (# of beats/10 sec) for each temperature. Here is the data: 10°C 15°C 20°C 25°C 30°C 35°C Mean Heart Rate (# 23.67 23.89 24.33 27 35.89 37.78 beats/10 sec) What is the Q1o value for heart rate (# of beats/10 seconds) for the temperature interval of 25°C - 35°C? Round your answer to two decimal places.

I need help! Pls

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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A OnCourse Connect > Assessment: Chemistry x 4 Copy of spread of isla x E The Spread of Islam- G X M Inbox (904) - aarojame A Classes b oncourseconnect.com/assessment/1651879/5287e2a3-0d0b-e2c0-c15c-3e68a37149b4 O TPSS Bookmarks CHEMISTRY BENCHMARK TEST 01 CHEMISTRY I 12-7 (AARON JAMES, ID. 12390724) Plutonium-239 (Pu-239) is a dangerous substance in many ways. Produced in nuclear reactors, it is very poisonous, highly radioactive, and it can be used to make nuclear bombs. The half-life of Pu-239 is about 24,000 years. How much Pu-239 would remain in a sample with an initial mass of 48 grams after 96,000 years? 2 grams 3 grams 6 grams 12 grams A Save/Exit 19 20 21 22 23 24 25 26 27 28 https://www.oncourseconnect.com/assessment/1651879/5287e2a3-0d0b-e2c0-c15c-3e68a37149b4# 國 O O O O B.

S outo Classes e myBackpack C Infinite Campus 9 New Tab File| /media/fuse/drivefs-a644cf067c63cc0d1217e47dfd368497/root/k.g_k.sch_ZG9taW5pY28ua2FudG9yQGFwc2sxMi5vcmc_Whiteboar. Q < * 1 /1 Good Day 03 Be O +2 AIC→I AbO, •3 Be Cla a) what is the molar mass? BeO , AlzOa b) How many mols of beryllium chleride are produced from 13 mols of BeO?(1-step) ) How many grams of Al,O, are 9 mol AICI,? (2-step) ) How many grams of Al2Og are produced Srom 100g BeO (3-step) e) Determine the limit ing reartan ti 13 7mol BeO ;13.7mol Al Cl, produced from 5) Determine excess reactant 4Sa BrO j 75q AICIS US VO 11:12 @ %23 2$ % 4 7 8 backsp W e y d h k

What is Donnan's theory? What is its importance in biophysical chemistry?

Campuswire Bb Chapter 3 – 2150 Fall 2021 08/ X D (268) COVIDeos lecture series X (268) Deep House Mix 202 1 X Get Homework Help With Chec X C It Is Pertolu: - Blackboard Lex 101 Chem101 + app.101edu.co M Apps G M Gmail YouTube Maps а АМAZON Translate Gflights Case Status Onlin... Reading List Question 15.c of 30 Submit How does the quantization of energy explain the observed photoelectric effect and emission of UV energy? When light shines on a metal, electrons can be ejected from the surface of the metal in “the photoelectric effect". Experiments showed that the wavelength of light is inversely proportional to kinetic energy of the electrons ejected. Identify the best explanation of the photoelectric effect. A) Increasing the brightness of incoming light increases the kinetic energy of the ejected electrons. B) Increasing the wavelength of incoming light increases the kinetic energy of the ejected electrons. C) Increasing the frequency of incoming light increases the kinetic energy of…

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