ENV 220 Properties of Soil Lab Report

Experiment 605_Hydrates_1_2_1 (1) (Protected View) - Word (Unlicensed Product) ces Mailings Review View Help Foxit PDF Tell me what you want to do contain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable Editing ir Office product is inactive. To use for free, sign in and use the Web version. Post-lab Questions Activate Use free at Office.cc 1. Calculate the mass percent of water for the hydrate, LINO,-3H;O. 2. What will be the probable effect if you kept the crucible completely covered during the entire heating and cooling processes? Would your calculated percent water in the hydrate be high, low, or unaffected? Explain. 3. If 2.752 g sample of Ca(NO:); XH;O is heated to constant mass, the residue weighs 1.941 g. Determine the value of x and the formula of the hydrate.

To ensure that you are not confused, I attached what the experiment was about. I highly recommend you read through it before going to the questions. file:///Users/michaelzheng/Downloads/ExploringEnergy%20(2).pdf Only answer Post lab questions 2-5 For number five, put the answers in the format stated in the background. Thank you.

26) The floor tiles in SE 27 are about 1 square foot and the lab is about 25 tiles wide and about 36 tiles from front to back. When the emergency shower was demonstrated, in 10. seconds the water in the trash can was about 1 foot deep. One student estimated this was 2.5 gallons. Estimate how deep the room will get in inches after a 15 minute shower. List 3 simplifving assumptions you make in this calculation rea L-36 Tile fiDw ill it cost2 The density of gold is 27l An artist plans to apply gold leaf to a painting with an area of 2.32 f? and a thickness of 1.50

Activity B: Rates of diffusion Get the Gizmo ready: Click Reset. Introduction: The Diffusion Gizmo allows you to manipulate five variables: the Wall, the number of x particles in region A, the number of y particles in region B, the temperature, and the Particle mass. Question: How do factors other than temperature affect the rate of diffusion? 1. Choose a variable: Pick a variable to investigate. Which one did you choose? 2. Form hypothesis: How do you think this variable will affect rates of diffusion?

Bb Take Test: QUI A Ims.uhb.edu.sa/webapps/assessment/take/take.jsp?cours... لا تعيد السمكات إلى ا. . . الاثاد M Gmail O YouTube Human Biology Ch... A Apps Remaining Time: 15 minutes, 04 seconds. * Question Completion Status: 0.5 points Saved Question 6 Find the major product of following dehydration. OH CH3 CH,-CH-CH-CH2-CH3 + H20 CH3 OA CH2=CH-ĊH-CH2-CH3 OCH3 O B. CH3-C=c-CH2-CH3 OC. CH3-C-CH,- -CH2-CH2-CH3 O CH3 OD. CH3-C-CH-CH2-CH3 CH3 CH3-CH=C-CH2-CH3 » A Moving to another question will save this response. Question 6 of 10> .w. MacE

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.

FOLLOW UP QUESTION: Answer #4 onlyQuality Assurance and Calibration Methods Link to previous answers:https://www.bartleby.com/questions-and-answers/a-0.2422-g-sample-of-a-certain-fruit-was-analyzed-for-the-content-of-a-certain-pesticide.-after-a-se/73201da3-a435-470d-af44-bbdc3d361b00

3..please use excel to calculate Fe analysis by ICPMS. 1') Generate a standard curve 2') calculate the Fe concentrations in two air samples

please answer the following with equations used and calculations.

What’s the name of the hydrate in this problem?

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

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

Need complete solutions no need ai solutions okk just solve accurate

Where am I going wrong?   The collision cross section for neon is 0.24 nm2.Calculate the mean free path (in nanometers), between collisions for neon atoms at a pressure of 1.00 atm and a temperature of 31°C.    λ = _______ nm.

hrome File Edit View History Bookmarks Profiles Tab Window Help Watch Gilmore Girls | Netflix ALEKS A ALEKS - Reyna Garc A www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNslkr7j8P3jH-IVDWKW BBZZ16tTytly4Fcf Spotify Web Playe... M Common Ethical D.. O CHEMICAL REACTIONS Identifying the limiting reactant in a drawing of a mixture The drawing below shows a mixture of molecules: key carbon hydrogen nitrogen sulfur oxygen chlorine Suppose the following chemical reaction can take place in this mixture: CO(g)+2 H,(9) → CH,OH(9) Of which reactant are there the most initial moles? Enter its chemical formula: Of which reactant are there the least initial moles? Enter its chemical formula: Which reactant is the limiting reactant? Enter its chemical formula: Explanation Check FEB 13

We were given an activity about observing 2 balloons. 1 balloon is in the basin with cold water and the other balloon is in the basin with hot water we were task to observe it after 1 minute and after 3 minutes and wrote our observation which is the balloon in the basin with hot water expanded and the balloon in the basin with cold water shrunk. The question is how would we apply our learning on this activity in real life?

← Chrome File Edit View History Bookmarks Profiles Tab Evolution of the Gex tab → 13.1 Solution Form.... M Gmail YouTube Maps Ghess law organic c..... M esc caps lock 75% D Sat 10:20 PM a Gp and reactants-G X Significant Figures X Bb Department of Che X M Mathway | Algebra x A ALEKS-Lara Althax www-awu.aleks.com/alekscgi/x/isl.exe/1o_u-IgNsikr7j8P3jH-lvTqeviKFP6W0cqJcWJdIACROQwyw24GWHin4XFyQvsTuo6422Ls2TWa4xMOJZaDSVCHQol7p3... ☆ O KINETICS AND EQUILIBRIUM Using Le Chatelier's Principle to predict the result of changing... Carbon disulfide and oxygen react to form carbon dioxide and sulfur dioxide, like this: CS₂(g)+30₂(g) → CO₂(g) +2SO₂(g) perturbation Some O₂ is removed. Some CO₂ is added. Suppose a mixture of CS₂, O₂, CO₂ and SO₂ has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left. Explanation 1…

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

please use excel to calculate Fe analysis by ICPMS. 1') Generate a standard curve2') calculate the Fe concentrations in two air samples..

The destruction and removal efficiency for a particular VOC in an incinerator is 97.5%. Determine the mass flow rate (mg/s) of the VOC at the inlet if the volumetric flow rate is 15 m3/s and the outlet concentration is 100 µg/m³. O A. 40 О В. 50 О С. 60 O D. 70

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If the amount of a chemical in a lake (4 tonnes) and the inflow (7) Kg/yr, what is the residence time of the chemical in the lake? (in year) Select one: a. 571.43 Ob. 0.57 Oc. 1750.00 Od. 1.75 Oe. 28.00

For this question: How SPF blocks UV Rays from the sun Please try to answer it in a presentation way (provide slides & pictures) & please write in detail each slide and explain them Provides notes to write on index cards please DON'T FOGET: first slide should outline (summarize) the whole presentation and the last slide should have the bibliography please please try to answer everything as fast as possible please its super super important and urgent i really need it Please please please answer I really need you to answer this please I'm begging Just try your best to answer please

Explain 4 traditional techniques half life method , isolation method , differential method and isolation method in chemical kinetics?

MALEKS M Gmail ▬▬ 个 YouTube a X ALEKS - Rafia Riaz - Knowledge X Maps GTranslate 100 www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNsIkr7j8P3jH-lvdw7xgLCkqMfg8yaFKbD9GafJstkYLIJnusW8TEgBIZPnLl8sAgRlfC6ZtccT1w4AJQeyt0rTTP... News = Module Knowledge Check time (seconds) 0 A chemistry graduate student is studying the rate of this reaction: 2SO3 (g) →2SO₂ (g) + O₂(g) He fills a reaction vessel with SO3 and measures its concentration as the reaction proceeds: 10. I Don't Know 20. 30. 40. [SO3] College information 0.0600M 0.0351M 0.0206M 0.0121 M b Home | bartleby 0.00706 M Use this data to answer the following questions. Write the rate law for this reaction. Calculate the value of the rate constant k. Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. Submit x + rate = k 0 Question 13 0 x10 ロ・ロ X 3 4 © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center 57°F Sunny Rafia V ? 圖 Õ ollo Är Accessibility C <»)) 0 X Other bookmarks…

Answer question number 7 on the attached document

Can you make a suggestion for a research topic about disaster risk? or any topic that can be modified and innovated that is still non-exist up to this present. The prototype also is simple and can be made at home.

. شماره دانشجوی ی 1. What is the term Ex post facto research? 1.5 2 2. How do you think of the objective of exploratory research? 3. Name the action sequence in a research process (7 steps in chronological order). 3.5 4. Mention two steps that are involved in formulating the research problem. 1.5 5. Explain four approaches for hypothesis formulation. 2.5 6. a) What is the purpose of research design? b) Name four different research designs? 3.5 7. Name just three methods to perform random sampling? 1.5 8. What is the difference between a quota and stratified sampling? 9. What is the main aim of applied and fundamental research?

2. Explain with practical examples the negative impacts of chemistry in relation to society (Hint: pollution). 3. Suggest possible solutions how the knowledge from chemistry can be used to prevent environmental damages and/or climate change. MAY 6. tv MacBook Pro & * %24 4. 5 6. 7 8. T. Y K

2. An 84 kg University of Toledo groundskeeper who is spraying a 100 mg/L solution of the insecticide dieldrin (MW = 381; logP = 4.56) on some trees exposes 100 cm“ of his skin to the solution over a 4 hr period. Dieldrin has a half-life of about 6 months, a volume of distribution of about 40 L/kg, and a dermal permeability of about 3 x 10° cm/sec. (a) Estimate the absorption rate during the exposure period assuming the blood concentration is much lower than the skin concentration (i.e., take the blood level to be zero in the skin absorption equation). (b) Estimate how it takes after exposure begins for the groundskeeper's plasma dieldrin levels to reach 1 ng/L. (c) Estimate the maximum plasma dieldrin concentration in ng/L that will occur in this groundskeeper due to this exposure. (d) Estimate how long it will take after exposure ends for the groundskeeper's plasma dieldrin levels to drop back down to 1 ng/L. %3D