Pre lab 17

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…

K Haylee Scott - cp Zoom meeting lin com/web/viewer.html?state%=D%7B'ids %3A%5B"1zOflgo1GoQFrdviJ6PWx8L3h2j4uav5n"%5D%2C"action"%3A'open C Clever | Portal A Classroom https://sso.theleam. M Oro Grande Elemen. W Yearbook Aven ue Period 5 Scien. Haylee Scott - cprr061.pdf Building Vocabulary From the list below, choose the term that best completes each sentence. matter physical change endothermic reaction chemical change chemistry precipitate exothermic reaction 7. Any change that alters a substance without changing it into another substance is a(n) 8. is anything that has mass and takes up space. 9. A reaction that releases energy in the form of heat is called a(n) 10. A(n) absorbed. 11. A chemical reaction is also referred to as a(n) is a reaction in which energy is 12. A(n) a chemical reaction. is a solid formed from a solution during 13. is the study of the properties of matter and how matter changes. OPearson Education, Inc., publishing as Pearson Prentice Hall. All rights reserved…

/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

MyEPCC ← → G Gmail Mail - Chavez, Daniela M. X A ALEKS - Daniela Chavez X bChemistry Homework Hel X www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IJluBpcUFhvlTCeeBZbufuBYTi0Hz7m7D3ZccTVaNa6JcZm9qGp3Ro656Czy4sWrUOXL... L 0 -=-/24 YouTube K X = Initial Knowledge Check Maps I Don't Know Courses Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy of the following chemical reaction: 4H₂O₂ (1) + PbS (s) → PbSO (s) + 4H₂O (1) Round your answer to zero decimal places. Submit x10 X X Question 3 + Daniela 00. Ar x © 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility

d ← Chrome esc e 24% (92) ALE X Mathwa X G 102 cels X ☆ www-awu.aleks.com/alekscgi/x/isl.exe/1o_u-IgNsikr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHinMCnqLGstAPM iZtogOAPGJIWPnLIY... 17.4 Solubility and... 18.3 Gibbs Free E... 5.3 Enthalpies of... 18.5 Gibbs Free E... Reading Schedule 19.6 Reduction Po... Y SOLUTION: The le... Math 115 W-S Fall.... File email d x Edit View History Bookmarks Profiles View 7. Q A Nancy X Z Explanation O KINETICS AND EQUILIBRIUM Using the Arrhenius equation to calculate k at one temperature... 2 W S The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an activation energy E-29.0 kJ/mol. If the rate constant of this reaction is 2.8 x 10³ Ms at 320.0 °C, what will the rate constant be at 222.0 °C? -1 Round your answer to 2 significant digits. Check X A ALEKS X CIChego X H command # 3 E Tab Window Help D $ 4 C X R > F 5 (92) ALE X % 5 V I T G #tv Welcom X A ALEKS ^ 6 MacBook Pro B Y We 9 "/ & 7 H X U N You 8 J 0000015 1…

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

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…

lit View History Bookmarks Profiles Tab Window ALEKS ||| = ALEKS - Tiffany Te-L-Peng - L X C www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNslkr7j8P3jH-liGBdp5ulp5VqUnMDyYPOVaX6q0CRPLZSQ5NDHtEP4AK_RE O ORGANIC OXIDATION AND REDUCTION Predicting the products of alkene ozonolysis Predict the major products of this organic reaction. Explanation Check Help C :0 + + T 1.03 1 2. DMS X 3 A Click and drag to start drawing a structure. Ⓒ2022 McGraw Hill LLC. All Rights Re

I do not know how to find the molecular formula

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

A ALEKS-Lara Althawadi-Lear X C www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNsikr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHInIM980NgTh9QVF2n2RvgXWafepUzFDfsf... # 4 Solubility and... 18.3 Gibbs Free E... 19.6 Reduction Po.... a SOLUTION: The le... Math 115 W-S Fall.... tab s lock 18.3 Gibbs Free E... 5.3 Enthalpies of... esc O ACIDS AND BASES Identifying the major species in weak acid or weak base... The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at equilibrium. You can leave out water itself. 0.1 mol of HBr is added to 1.0 L of a 0.3M NH, solution. Slide 76 of 78 Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the formulas of the species that will act as neither acids nor bases in the 'other' row. You will find it useful to keep in mind that NH, is a weak base. 0.49 mol…

molar mass of na2s2o3-Google X October 1, John Searle "Minc @ x + www-awu.akeks.com/alekscgi/x/Isl.exe/1o u-lgNslkr7j8P3jH-lix5uFZIVj2iEJjąd1WoxT77ErtzZpGbzESW6u_S5FZDV02WDPG OKqpiLH65e00TK3cK7TrLikOsdoZA3aRgGhL.. O ADVANCED MATERIAL 三 Solving applied mass concentration problems In 1993 the Minnesota Department of Health set a health risk limit for 1,2-dibromoethane in groundwater of 4.00 ng/L. Suppose an analytical chemist recelves a sample of groundwater with a measured volume of 78.0 mL. Calculate the maximum mass in micrograms of 1,2- dibromoethane which the chemist could measure in this sample and still certify that the groundwater from which it came met Minnesota Department of Health standards. Be sure your answer has the correct number of significant digits. ロ x10 Explanation Check 2020 McGraw-Hill Education. All Rights Reserved. Terms of Use | Prie

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

с www-awu.aleks.com/alekscgi/x/Isl.exe/10_u-IgNslkr7j8P3JH-IQUHIQg6bJxmeSyVPHOEB1plef9xy C5Ca9QIUX9FDNs1kHQvOMzcrVpгA IBP5q2HYwPcASZQKNla... Naming and Drawing Organic Molecules Recognizing different skeletal structures How many different molecules are drawn below? mxxx sex Explanation Check G MacBook Air 0/5 Julianna ? olo Ar 2024 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility

o/index.html?deploymentld%3D55750828934189288909969212&elSBN=9781305657571&snapshotld%3D2199... Tp * NDTAP Q Search this co Use the References to access important values if needed for this question. Cyclopentasilane (SigH10) is a liquid with a density of 0.963 g cm3. It reacts with oxygen to give silicon dioxide (SiO2) and water. Calculate the mass of water that would form if 29.4 cm³ of cyclopentasilane reacted completely with excess oxygen. g water Submit Answer 4 question attempts remaining

t EKS View History Bookmarks = X Explanation Profiles Tab Window Help www-awu.aleks.com/alekscgi/x/Isl.exe/10_u-IgNslkr7j8P3jH-liGBdp5ulp5VqUnMDyPOVaX6q0CRPLZSQ5NDptEPbOkOLSy4AtH m ALEKS - Tiffany Te-L-Peng - L X O APPLICATIONS OF SUBSTITUTION AND ELIMINATION Predicting the products of nucleophilic epoxide ring opening Check Predict the major products of this organic reaction. Be sure to use wedge and dash bonds when necessary, for example to distinguish between different major products. + C™ C & Soarob + T H₂SO4 B 1 H₂O X MacBook Pro 3 Click and drag to start drawing a structure. Ⓒ2022 McGraw Hill LLC. All Rights Reserved.

C LOCH3 250 °C HBr }) m-CPBA MgBr

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A ALEKS-Lara Althawadi-Lear X www-awu.aleks.com/alekscgi/x/isl.exe/1o_u-IgNslkr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHInrXFcoR-QXSqsWtFNDEXBMSyluqEPqJGL... mility and... 18.3 Gibbs Free E... 5.3 Enthalpies of... 18.5 Gibbs Free E.... Reading Schedule -k O ACIDS AND BASES Identifying the major species in weak acid or weak base... esc Slide 76 of 78 The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at equilibrium. You can leave out water itself. 1.9 mol of NaOH is added to 1.0 L of a 1.0M HCN solution. Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the formulas of the species that will act as neither acids nor bases in the 'other' row. You will find it useful to keep in mind that HCN is a weak acid... 0.32 mol of HCl is added to 1.0 L of a solution that is 1.3M in both HCN…

10A Propose step-by-step reaction sequence for the Conversions. OH COM QH OH following

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

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