Pre lab 17

to Johnston Commun X Rh Blackboard Collaborate Ultra - x > General Psychology-Fall 2021 A ALEKS - Griffin Barden - Learn + A www-awa.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IJczzdcvSCzsqTCIDqNGV3bKqhMfPmUcQ4ENkmiXn9QCwgeDPDkQ06yszYWESPcekwLO-Qg619rekU7404HgFAGbEZa Dr080?1 oBw7QYjlbavbSPXtx-YCjsh_7mMmrq#item O THERMOCHEMISTRY Griffin Calculating a molar heat of reaction from formation enthalpies Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab, calculate the reaction enthalpy of this reaction under standard conditions: 2C,H;(g)+70,(9)→4 CO,(g)+6H,O() Round your answer to the nearest kJ.

KS - Alec Nema - Learn + A www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-lgNslkr7j8P3jH-lvUrTNdLZh5A8CnG03PBGuXr8iCPa7ZMmym9ptTdXEBuyh4nRbErwikmldvGYg7DAf2EO_jCH3o... ☆ Sprouts Academy. Online Tutoring C 400 Request Heade. Q Weather & Soil CH.. O ADVANCED MATERIAL Using solubility to calculate solute mass or solution volume Alec The solubility in water of ionic compound X is measured and found to be 0.143 g at 10. °C. Calculate the volume of a saturated solution of Xin water that ml would contain 210. mg of X at this temperature. Be sure your answer has the correct unit symbol and 3 significant digits. Explanation Check O 2020 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy| Accessibilit 4:20 11/25 35 O Type here to search DELL

Gb6cd_i-5c7IV_IVquz8U4UO2epq7z4kBnpYZ5iA/edit > 2 ons Help Calibri - - [12] + B 7 U . UA 2 3 ge 2: Problems of Water and Air Quality Questions 1. Why is it recommended to have a carbon monoxide detector on each floor of a home? Et © ª @ E- E 4-B-E- 2. What impact would the increased use of electric vehicles have on environmental damage caused by acid rain? 3. Why is ground level ozone most likely to reach its highest concentrations on hot, sunny days during periods of heavy traffic in large cities? Page 3: More Air Pollution Issues: Questions 4. The COVID-19 pandemic forced many people to work from home for extended periods. During these periods, many cities reported unusually low levels of smog. Suggest an explanation for this observation. Page 4: Water Pollution: Questions 5. Explain how ozone can be both harmful and beneficial. 6. India relies heavily on burning coal to generate electricity. How does India's reliance on coal contribute to the poor air quality experienced in many of…

/x/Isl.exe/lo_u-IgNslkr7j8P3jH-IQs_dp5pR4ENzvdYC-70kXyMz36BqJhw3sVPj_jpaFLxvGArYxlbmayqa71YYPJBG6RjdYAdGPjGhFLILID-HEX1YcqAB?1oBw7QYjlbavbSPXtx-YCjsh_7mMmrq#item P Course Home Login | Student Veri... Hb Logout MyProgrammingLab Imported From IE O ITEC2110:Summer2... TunesToTube - Upl.. Publix App Web Development.. O KINETICS AND EQUILIBRIUM Using the Arrhenius equation to calculate k at one temperature fr. Cia 23%#3%# The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an activation energyE=45.0 kJ/mol. If the rate constant of this -1 -1 reaction is 4.4 x 10 M s at 266.0 °C, what will the rate constant be at 177.0 °C? Round your answer to 2 significant digits. -1 k = \\M -1 x10

me 2 esc Edit File View ||| ! ALEKS History ALEKS - Tiffany Te-L-Peng - L X C www-awu.aleks.com/alekscgi/x/lsl.exe/10_u-IgNslkr7j8P3jH-liGBdp5ulp5VqUnMDyPOVaX6q0CRPLZSQ5NDSL9PhmOKLh4C F Explanation @ Bookmarks Profiles O SUBSTITUTION REACTIONS Predicting the effect of carbocation stability on the rate of... Substrate A CI Br For each pair of substrates below, choose the one that will react faster in a substitution reaction, assuming that: 1. the rate law for the substitution reaction has a first-order dependence on the concentration of the alkyl halide, and 2. doesn't depend on the concentration of the other reactant at all. Br Tab X Check Window Help Substrate B CI + Br Faster Rate (Choose one) (Choose one) (Choose one) MacBook Pro G Search or type URL ▼ X Ⓒ2022 McGraw Hill LLC. All Rights Rese

Cou X A Ch 6 x C Sear X * Sear X Sear x b > Hov x2 Con x Con X b Sear X y! cher X M Inbc X M Inbc X + Vent X 8 https://www.saplinglearning.com/ibiscms/mod/flcn/view.php?id3D15033867 + Sapling Learning macmillan learning Ch 6 Homework Jason Bauer , Sapling Learning > Ventura College - Chem V30 (31510) - Spring21 - ALAWDI > Activities and Due Dates > Ch 6 Homework E 20 of 24 Questions O Assignment Score: O Resources O Hint 68.3% Check Answer O 16 Question 100% x2 Question 20 of 24 > 1 of 5 Attempts Correct How many moles of CaCl2 are in 7.76 x 1024 formula units? O 17 Question 100% x2 1 of 5 Attempts Correct 7.76 x 1024 formula units = mol O 18 Question 100% x2 2 of 5 Attempts Correct O 19 Question 1 of 5 Attempts 100% x2 Correct 20 Question 0% O of 5 Attempts 21 Question 0% x2 O of 5 Attempts © 2011-2021 Sapling Learning, Inc. about us careers privacy policy terms of use contact us help 1:42 PM P Type here to search 99+ 2/18/2021 19

Blackboard | Miami D x M CHM 1046L_Week 9 x S HOL - Instance A ALEKS - Daniela GALL x Blackboard| A www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslikr7j8P3jH-liGmxpvVN4ENzvdYC-70kXyMz36BqJhw3sVP20GT MEASUREMENT AND MATTER Simplifying unit expressions Rewrite this measurement with a simpler unit, if possible. kg-m 4.7 2 m m Note: If you can simplify the unit at all, it may be possible to make more than one simplification. Be sure ロ.口 ola

1-arr In a study of the gas phase decomposition of phosphine at 120 °C PH3(g)- →1/4 P4(g) + 3/2 H2(g) the concentration of PH3 was followed as a function of time. It was found that a graph of In[PH3] versus time in seconds gave a straight line with a slope of -2.50×10² s1 and a y-intercept of -3.24. Based on this plot, the reaction i v O order in PH, and the half life for the reaction is seconds. zero first second

Chrome File Edit View History Bookmarks Profiles email draft - Google Docs sc ● Consider this reaction: 1 A ALEKS- Lara Althawadi - Lear X ☆ C www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNsikr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHInUUz9jGCwQIcISUzhOQhHxz_5bM9yeRdQ... 17.4 Solubility and.... 5.3 Enthalpies of... 18.5 Gibbs Free E...Reading Schedule 19.6 Reduction Po... Y SOLUTION: The le... Math 115 W-S Fall... 2H, PO₂ (aq) → P₂O, (aq) + 3H₂O (aq) - At a certain temperature it obeys this rate law. -1 rate = (82. M¹-s¹) [H₂PO4] Q A 18.3 Gibbs Free E... O KINETICS AND EQUILIBRIUM Using first- and second-order integrated rate laws Os Explanation F N 18.210 @ x Nancy Foldi - Department of PX Suppose a vessel contains H₂PO4 at a concentration of 0.290M. Calculate how long it takes for the concentration of H₂PO4 to decrease by 92.%. You may assume no other reaction is important. Round your answer to 2 significant digits. 2 W Check S # X :m 3 26 9.f E Tab D 14 $ 4 Window Help C X R Ś F JO…

hrome File Edit View History Bookmarks People Tab Window Help 17% O Tue 9:35 PM A ALEKS - Esther Octave Learn X + A www-awa.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IBcn9hvCfbYq_fi3Zsn8H2oW_5PTMI0acVC-FOMLOK3cK7T6K1BWbc47sbYw. * Paused E Apps M Gmail YouTube Maps BC Broward College |. Sample Source An... O New Tab G What does Duckw.. E Untitled documen... O ELECTRONIC STRUCTURE OO Esther Calculating the wavelength of a spectral line from an energy.. -21 ". You can find the meaning of This energy diagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI prefix 'zepto' means 10 any SI prefix in the ALEKS Data tab.) 1400 - 1200 - -C dlo 1000 - 800 Ar energy (z) B 600 - -A 400. 200- Use this diagram to complete the table below. What is the energy of the electron in the ground state? What is the energy of the electron in the first excited state? O absorbed If the electron makes the transition shown by the red arrow, from C to A, will a photon be…

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

ecollege.com/course.html?courseld=16985674&OpenVellumHMAC=d4abff74a80d41d197d6c57220120253#10001 EUsing Microwave Radiation to Heat Coffee 9 of 29 M Review | Constants | Periodịc Table Microwave ovens use microwaye radiation to heat food. The microwaves are absorbed by the water molecules in the food, which is transferred to other components of the food. As the water becomes hotter, so does the food. Part A Suppose that the microwave radiation has a wavelength of 12.4 cm. How many photons are required to heat 295 mL of coffee from 25.0 °C to 62.0 °C? Assume that the coffee has the same density, 0.997 g/mL, and specific heat capacity, 4.184 J/(g - K), as water over this temperature range. Express the number of photons numerically. > View Available Hint(s) ? photons Submit Provide Feedback Next> P Pearson 11:26 AM 72°F Sunny 11/25/2021 20 Cop

4:02 PM Sun Nov 8 * 99% A cdn.inst-fs-iad-prod.inscloudgate.net WORKSHEET 10: BALANCING EQUATIONS ΡΟINTS: NAME: DUE DATE: Balance the following chemical equations. Then identify the type of equation for each: combination, decomposition, single replacement, double replacement, or combustion. 1. с Н, _C,H, + O,→ _CO, + _H.O 2. K + F, → KF 2 Al +_0, → _Al,0, 4. _N, +_H, → NH, Fe,O3 Fe,+_co Kample 5. CO → (g) _Fe+ CO, (s) 2(g) H,SO̟ + Вa(ОН), > BaSO,+ _H,0 6. 7. _Al + HCl → AICI, + _H, _H,PO, Н. РО, + HCl → _PCl,+ _H,O 8. NaHCO, > _Na,CO, + _ Н,0 + 3. 9.

The quenching of tryptophan fluorescence by dissolved O₂ gas was monitored by measuring the emission lifetimes at 348 nm in aqueous solutions. [0₂]/(10-² mol dm-³) T/(10-⁹ s) 0 2.3 5.5 8 10.8 2.6 1.5 0.92 0.71 0.57 A. 0.95 E-2 M B. 4.3 E-2 M C. 1.8 E-2 M D. 3.0 E-2 M E. None of the choices From the data above, predict the value of [0₂] required to decrease the intensity of tryptophan emission to 50% of the unquenched value.

(2) A CHEM 215 student performed 5 measurements of the wt% of SO4²- of a solid power sample. The results are 8.75%, 8.85%, 8.89%, 8.71%, 8.64%. The standard deviation is 0.10%. What is the confidence interval for this student's experiment at 95% confidence level. The t values for 95% confidence for degree of freedom from 1 to 5 are 12.71, 4.303, 3.182, 2.776, 2.571, respectively. Show your work!

لا © Macmillan Learning H H-C-OH H₂/Pt HO-C-H $ % do LO 5 H₂C-OH OCT 11 <6 Y MacBook Pro Resources Q2Q Erase Select Draw Templates More /// C 0 H G c 2Q & * ( 7 8 9 0 ) U 0 P SUD

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

Page Grades for Nancy Duran: CHE 103 X A ALEKS - Nancy Duran - Learn × + ✰ www-awa.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IQgHlvdL2donGg9plnQUm9kiGJhghYuAiZLqZVWgwEXBsd4IBLw36AkXLcyDcVVrmllCzwt0IT1g... ? O CHEMICAL REACTIONS Limiting reactants QU N OO EXPLANATION Gaseous butane (CH₂(CH₂)₂CH3) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide (CO₂) and gaseous water (H₂O). Suppose 2.3 g of butane is mixed with 4.49 g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction. Round your answer to 3 significant digits. The question is a limiting reactant problem. You can tell it's a limiting reactant problem by the fact that you were given the initial amounts of more than one reactant. Here is the balanced chemical equation for the reaction you will need to solve the problem: 2 CH₂ (CH₂), CH₂(g) + 130₂ (g) → 8 CO₂(g) + 10 H₂O(g) You can solve limiting reactant problems in the following three steps: Step 1: Find the initial…

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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

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ALEKS - Jeneen Abdelrahim - Lea x A www-awu.aleks.com/alekscgi/x/Isl.exe/1o u-IgNslkr7j8P3jH-lix5uFZIVj2iEJjQd1WoxT77ErtzZpGbzESWCHQAIM8yRRgXuzfCF2uqajotou CbXDqDRhYOu6ecw75TbH3KAJL.. O STOICHIOMETRY Solving for a reactant using a chemical equation Jen Wine goes bad soon after opening because the ethanol (CH,CH,OH) in it reacts with oxygen gas (0,) from the air to form water (H,0) and acetic acid (CH,COOH), the main ingredient of vinegar. What mass of ethanol is consumed by the reaction of 5.1 g of oxygen gas? Be sure your answer has the correct number of significant digits. Privacy Check 2020 McGraw-Hill Education. All Rights Reserved. Terms of Use Explanation 三I

New Tab + O 6 https://east.cengagenow.com iln/takeAssignment/takeCovalentActivity.do?locator=assignment-take O Other Bookmarks [References) Use the References to access important values if needed for this question. In the illustration, N is color-coded as blue and O is color-coded as red, What kind of change is represented by this illustration? Is energy absorbed or released when this change occuri sico vaporization Submit Answer Try Another ersion 2 item attemp sublimation freezing condensation deposition Provinus Next 6) 3:27 PM 5/5/2022 SONY DISPLA WEB One Touch Web Access Without Booting Up F12 Num Lk Ser Lk PrtSc Sys Rg Delete Break Insert F5 F6 F7 F8 F9 F10 F11 Pause 156 Backspace Home -- Page Up Enter K Page Down Enter

MyCSU-Columbus State Univers X M Inbox (1) - bailes_amber@colum X D2L Quiz 1- Intro Resrch Meth in CJ K ← → CO 03 Email MGmail X A ALEKS-Amber Bailes - Learn X + www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IJgXZp57itWHhRgilODc5MqvhZbKYx2-U-03700TYd4ABbH6KAJLiK5JfbHdk1X12WQ... LE YouTube Maps MyCSU-Columbus... B Homepage - Georg... Microsoft Office Ho... BLesson 2 Discussion... III MyMidland Mortga... CHEMICAL REACTIONS Solving for a reactant using a chemical equation 3/5 Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction in which water (H₂O) and carbon dioxide (CO₂) chemically react to form the simple sugar glucose (C6H₁2O6) and oxygen gas (0₂). 12 What mass of carbon dioxide is consumed by the reaction of 3.6 g of water? Be sure your answer has the correct number of significant digits. g x10 Ś ? Explanation Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Ce 78°F O Et C ||| Check Type here to search X a no…

Chrome File Edit View History Bookmarks People Tab Window Help 78% O Thu 10:02 PM A ALEKS - Jacqueline Hoppenrey x A www-awn.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IQİHQRDYV_6Ux63SypJXz0Coxvwqgg4JkWI7XM99oekXTcojkLT31OZqp4772m0XOsdozQ5qMD3aRdEyOGQe33sgOsaJ. O GASES Calculating partial pressure in a gas mixture Jacqueline A 5.00 L tank at 7.37 °C is filled with 18.2 g of chlorine pentafluoride gas and 3.28 g of boron trifluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction and partial pressure of each gas, and the total pressure in the tank. Round each of your answers to 3 significant digits. 圖 mole fraction: chlorine pentafluoride partial pressure: | atm mole fraction: boron trifluoride partial pressure: | atm Total pressure in tank: | atm Explanation Check O2021 McGraw-Hill Education All Rights Reserved Terms of Use Privacy Accessibility MacBook Air 山回

Help 100% 47 T. "ublic Health Ch HSC 258 - Major Projec x MindTap - Cengage Lea X C The Illustration To T =55750828934189288909969212&elSBN=9781305657571&id=D1061392007&nbld=21... * Q Search t Referonces Use the References to access important values if needed for this question. For the following reaction, 50.4 grams of sulfur dioxide are allowed to react with 17.9 grams of water. sulfur dioxide (g) + water (I) sulfurous acid (H2SO3) (g) grams What is the maximum amount of sulfurous acid (H,SO3) that can be formed? What is the FORMULA for the limiting reagent? grams What amount of the excess reagent remains after the reaction is complete? Submit Answer