CHM2132_DGD_assign3_2023 (3)

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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

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

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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

How a a cascade impactor separates particles ?

Match the symbol to its meaning. amount of material (counting by individual particles) E(a) collision frequency rate constant reduced mass N collision cross-section k steric factor amount of material (counting by moles) A pre-exponential factor lowercase Greek sigma activation energy lowercase Greek mu > >

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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

Name: Lyna Ammi Date: 1/26/2022 Section: 02L Data Report Sheet: The Reaction of Methyl Violet with NaOH: A Kinetic Study 3. What is the value of k"?

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E) What does the graph predict about the concentration after 1 week? After 1 month?

An exposure assessment study was conducted in a nail salon. Previous studies have indicated that airborne concentrations of methyl methacrylate are approximately 1 ppm. If the LOD of the analytical method is 0.25 ug and sampling should be conducted at a flowrate of 0.01 LPM, what is the minimum amount of time the sample should be collected to achieve a detectable concentration? Note: Methyl Methacrylate MW=100.1 g/mol A. 11.2 Minutes B. 2.7 Minutes C. 8.5 Minutes D. 6.1 Minutes

The use of pesticides have allowed agricultural production to increase without an increase in farmed land. Leaching of pesticides from fields into lakes, streams, and the local water table can have detrimental environmental and health consequences. To limit leaching environmental protection regulations require that the half-life of pesticides to be less the 250 days. Report all answers to 3 significant digits A. You are hired to monitor the compliance of pesticides with environmental regulations. You obtain a a pesticide sample with a concentration of 0.2M/L from a local farmer 25 days later you measure the concentration to be 0.19M/L, is the pesticide in compliance with the regulation? Use the formula below: Use the 25 days as the t value and solve for r then subsitute all known values in to find t1/2. Once you find r, find the half-life and compare your t value to 250 days. N(t) = N(0) . ert B) A catalyst can be added to double the decay rate of the pesticide. What is the…

N2 (g) + 3 H2 (g) = 2 NH3 (g) + 100 KJ affect on (H2] affect on INH31 disturbance affect on IN2] increase N2] decrease increase increase pressure increase temp

[12!initial Two trials were completed in a kinetics experiment, resulting in the data collected below. Calculate the rate of each trial using the change in iodine concentration: rate Enter your answers in the boxes, rounded appropriately for significant figures. Use scientific notation, with E in the place of x10. For example, 1234 would be entered as 1.234E3 and 0.00123 would be entered as 1.23E-3. Do not use units. Trial Acetone, M 12, M H*1, M Time (sec) Rate 1 1.8 0.0025 0.33 136 2 1.8 0.0025 0.66 71 What are the units of rate? Use symbols only in your answer. What is the order of the reaction with respect to hydrogen ion? Report your answer to the tenths place. What is the order of the reaction with respect to hydrogen ion rounded to the nearest whole number?

For this question: How SPF blocks UV rays from the Sun Please answers it Try to answer it in a presentation way please Please please please answer as fast as possible please

Preview File Edit View Go Tools Window Help Thu 25 Feb 5:13 PM Tutorial Rate Law.pdf Search 1 page Tutorial Rate Law.pdf OMY AND GENETICS THINKING SKILLS COMPUTER IOLOGY SCIENCE reacts with iodine according to the following equation: Â ( C... time Tutorial lude all Rate Law writing, or he rate of the ... Diethylhydrazine reacts with iodine according to the following equation: |) 2 ( ….. (C2H5)2(NH)2 (1) + l2 (aq) » (C2H5)2N2 (1) + 2HI (aq) bjects! I we want ed time ask ubjects as ey don't Table 1 shows the data at a certain temperature. and more? [(C2H5)2(NH)2] / Experiment [l2] /M Rate /Mh1 count! M bject experts 1.08 х 104 1.56 x 104 2.30 х 104 3.44 х 104 0.150 0.250 uestions are fast as 30 2 0.150 0.362 Political Science 0.200 0.400 4 0.300 0.400 Table 1 d time: Calculate the order of reactions for each of the reactants and write the rate law for the ubject and reaction. esponse time Privacy - Terms nger for new OTO 28 FEB CC 25 étv 280 PDF

A chemical is sprayed onto a lawn at a rate of 0.90 kg active ingredient per hectare. The chemical has a half-life of 30 days at 20C. A storm event occurs 15 days after application and causes 3.5% of the material present in the 25 hectare field to be lost (total losses). If average temperatures during the 15-day period were 17C, how much material (mass) was lost during the storm?

Discuss the similarities and differences between the following terms applied in a particular kind of forensic analysis.  Enzyme inhibition assay and enzyme-linked immunosorbent essay

Using the calculated results in the picture attached, starting at 15 minutes, calculate the rate constants, k (last column in the data sheet). Then calculate the average value of k. Use the following equation to help calculate: ln (a/a0) = -kt