O-0005 Safety_ CHEM 3XX ALL LABS 2023W1 Chemistry Integrated Laboratory I_II_3

Answer question number 7 on the attached document

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

What safety rules did Andrew break?

es-2021S2 Allison.E CHEM X 2.ga.us/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=2593077&isprv=&drc%3D1&qi=2478023&cfql=0&dnb%3D08fi lancer O Khan Academy E DeltaMath musictheory.net - E. Ca Desmos | Scientific. g Final Exam Ciara Smith: Attempt 1 D View hint for Question 18 Question 19 (3 points) Explain how OCompound A and Compound B will dissolve in water using the correct vocabulary including solvation, dissociatic n, ionic, and covalent. O Mg Cl CH Compound A Compound B hp 二

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

11:15 .l .l 5.00 KB/S A O (12 4 app.teachermade.com/fill/13c37t (4) C Q Q T TI 4 v Save for Later I'm Done A. John Dalton was an English chemist. His Dalton's Atomic Theory ideas form the atomic theory of matter. Here are his ideas. • All elements are composed (made up) of atoms. It is impossible to divide or destroy an atom. • All atoms of the same elements are alike. (One Atoms of element X Atoms of ement Y Compound of elemeite XandY atom of oxygenis like another atom of oxygen.) • Atoms of different elements are different. (An atom of oxygen is different from an atom of hydrogen.) • Atoms of different elements combine to form a compound. These atoms have to be in definite whole number ratios. For example, water is a compound made up of 2 atoms of 1. What is the name of John Dalton's theory? 2. What are elements made of? 3. An atom of hydrogen and an atom of carbon are 4. What are compounds made of? 5. The ratio of atoms in HCI is: Atomic Structure J. J. Thomson was an English…

4,6,7,8) Question 19 of 20 (5 points) Question Attempt: 1 of 1 Time Remaining: 30:47 Hannah 10 = 11 = 12 =13 =14 =15 = 16 17 18 19 20 Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equation. Be sure the equation you submit is balanced. (You can edit both sides of the equation to balance it, if you need to.) do Note: you are writing the molecular, and not the net ionic equation. - CaBr, (aq) + H,O(1) Submit Assignment Continue Accessibility Privacy Center 2021 McGraw Hill LLC All Rights Reserved. Terms of Use II

4. For each example below, draw at least one possible isomer that is consistent with the molecular formula and the associated IR spectrum. a. MW 82, C6H10 80 60- 40- 20- 4000 b. MW 116, C6H12O2 80- 60- 20- 3500 4000 3500 9262 2943 3000 2837 2500 2000 2000 -9044 1653 1500 1468 1500 1437 1373 5221 6677 1080 1000 719 640

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

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

instructure.com/courses/16017/quizzes/600409/take onds Press S... d Loading Desmos... Answer: Nicole Sneddon Cla... 1. °℃ 3 33 7.06 Conter X Math 7 2019-2020 L D 10 000 Image from Pixabay: https://pixabay.com/photos/petrol-equipment-fire-extinguisher-3079094/ There is 17.0 g of carbon dioxide gas stored in a cylinder with a volume of 16.0. A pressure gauge shows the pressure to be 3.00 atm. R=0.0821 Latm/(mol-K) In degrees Celsius, determine the temperature of the gas. Round your answer to a whole number. 7.06 Applic x M Ihbox (1,61: x 19,Unattempted. About Us - Levi S 3 | G

Ab GL B art 3 SHOW WORK ond Shipp: Attempt 1 Hu/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=5956136&isprv=&drc=0&qi=5726766&cfql= Answer units ▷ Add attachments to support your work Question 4 (0.5 points) SHOW YOUR WORK. G **N*-*OO If 35.45 mL of 0.8121 M sodium carbonate solution reacts with excess lead (III) nitrate solution to form aqueous sodium nitrate and solid lead (III) carbonate, how many grams of lead (III) carbonate is formed? On your paper with your name and date: 1. Go from ionic compound name to formula (review Chp 5 as much as needed) 2. Balance the equation (review Chp 7 if needed). 3. Do the calculation showing ALL units, just like I did in solution stoichiometry lecture. a #

+ terface/acellus_engine.htm?ClassID=1467683063 Use the data below to determine the mass ratio of iron to oxygen for compound 2. Compound 1 2 Et onal Academy of Science. All Rights Reserved. Mass Fe (grams) 15.55 20.98 [20:1 Enter the answer that belongs in the green box. Iron Ratio Cmpd 2 Mass O (grams) 4.45 9.02 Sh Enter

Part c

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

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.

Firefox Pile Euit View History DOUNTial kS Heip ... my.CSMD.edu Module 12 HW Ch NWP Assessme X T Module 9 HW Cha w NWP Assessment e Module 11 HW Cha wPNWP Assessmen O 8 https://education.wiley.com/was/ui/v2/assessment-player/index.html?launchld%3Db0085ec6-77d3-4053-89d4-c26a8188bel e Module 12 HW Chapter 21 - Selected Exercises Question 8 of 8 -/1 三 The enolate of a ketone can be treated with an ester to give a diketone. Drawa mechanism for this Claisen-like reaction and explain why an acid source is required after the reaction is complete. For the mechanism, draw the curved arrows as needed. Include lone pairs and charges in your answer. Do not draw out any hydrogen explicitly in your products. Do not use abbreviations such as Me or Ph. Me 1) LDA Mulc OEt 2) 3) H,0 Que Multist Quest Step 1 Multipar Draw step 1 of the mechanism. Questic Molecular Question CH, Multipart CH, CH, Viewing Q Multistep / Edit Drawing MacBook Air esc 30 D00 F4 FI F2 F3 FS A vo F10 %23 2$ & 2 3 4. 6 7 9 Q E R…

Lab Data Time (min) 0 5 10 15 20 Rate of volume change (mL/hr) Rate of volume change( hr = Tube 1 White Light Volume (ml) 2.8 3.8 4.7 5.6 6.6 1 final volume(mL)-initial volume(mL) Time (min) How to Calculate Rate of Volume Change i Tube 2 Covered Volume (mL) 2.8 2.4 2 1.6 1.2 x 60( -X min hr 1 Complete the following steps: Calculate rate of volume change fa Elodea in white light. Record in Lall Data Calculate rate of volume change fo Elodea in covered tube. Record in I Data

Rsimi, Nour 2023VVA Chemistry.7b.FA1 An unknown solid substance is heated according to the temperature versus time graph below. Temperature (°C) 70 40 30 20 288 8 2 0 0 5 15 Time (min) 20 00 4 of 5 1 2 3 4 5 25 While the substance is a liquid, at what temperature do the molecules of the substance have the greatest average kinetic energy? 2 % 3 4 5 16 7 8 insert

Chrome File Edit View History Bookmarks People Tab Window Help 89% Mon 9:33 PM Student Students Homework DUE Monday, April X Madeline Carlo - CHM 112 HW X + A docs.google.com/document/d/10m8ZGoSGXKFFcl4KWhwOLh8bFpbtPAmvTWjJPnj15U4/edit Madeline Carlo - CHM 112 HW DUE Monday April 12, 2021 ☆ D TURN IN Share File Edit View Insert Format Tools Add-ons Help Last edit was 3 days ago 100% В IUA Normal text Arial 11 + Editing 31 1 III I III 1 I 2 3 1 I 4 5 II II 6 1 III | .5. For a reaction in which E° = -0.100 V and n = 1 mol electrons / mol, calculate AG°. State + your assumptions, if any, about temperature. .6. For a reaction in which E° = 0.100 V andn = 1 mol electrons / mol, calculate AG° at 25°C. Dictionary CC Aa ... !!! II III

Chrome File Edit View History Bookmarks People Tab Window Help 89% Mon 9:33 PM Student Students Homework DUE Monday, April X Madeline Carlo - CHM 112 HW X + A docs.google.com/document/d/10m8ZGoSGXKFFcl4KWhwOLh8bFpbtPAmvTWjJPnj15U4/edit Madeline Carlo - CHM 112 HW DUE Monday April 12, 2021 ☆ D TURN IN Share File Edit View Insert Format Tools Add-ons Help Last edit was 3 days ago 100% В IUA Normal text Arial 11 + Editing 31 1 III I III 1 I 2 3 1 I 4 5 II II 6 1 III | MnO, (aq) + 8H*(aq) + 5e → Mn²*(aq) + 4 H,O(1) Al(s) → Alš*(aq) + 3 e + .ЗА. Assign oxidation numbers to all metals whether they be elemental, monatomic ion, or in a polyatomic ion, in questions (1) and (2), .3B. Tell what is being oxidized and what is being reduced in each reaction in questions (1) and (2). .3C. Identify each half-reaction in question (2) as oxidation half-reaction or reduction half-reaction. .4. Do you need to know the temperature to calculate AG° from E°? Explain. > Dictionary CC Aa ... !! II

Chrome File Edit View History Bookmarks People Tab Window Help 89% Mon 9:32 PM Student Students Homework DUE Monday, April X Madeline Carlo - CHM 112 HW X + A docs.google.com/document/d/10m8ZGoSGXKFFcl4KWhwOLh8bFpbtPAmvTWjJPnj15U4/edit Madeline Carlo - CHM 112 HW DUE Monday April 12, 2021 ☆ D TURN IN Share File Edit View Insert Format Tools Add-ons Help Last edit was 3 days ago 100% Normal text Arial 11 B IU A Editing 31 1 III I 3 III I 4 III| I 5 II II I 7 II I| .1. Refer to the table of standard reduction potentials. Standard Reduction Potentials at 25 C Reduction Half-Reaction (V) FAg + 2 € H2O{aq) + 2 H*(aq)+ 2 6 Mno,taq) + 8 H*(aq) + 5 & Clalg) + 2 e CrOFMaq)+ 14 H*(aq) + 6 6- Ozlg + 4 H*(aq) + 4 & Bra() + 26 Ag*(aq) + e Fe*(aq) + e Ozl9) + 2 H'(aq) + 2 € 2(s)+ 26 Ozlg) + 2 HO) + 46 Cu (aq) + 2 € Sn" (ag)+ 2 6 2 P(aq) 2 H2O() → Mn(aq) + 4 H;0() →2 cr(aq) 2 Cr (aq)+ 7 H0() →2 HO() 2 Br(aq) Ag(s) » Fe*(aq) →H;Oz(aq) →2 F(aq) →4 OH"(aq) 2.87 1.78 1.51 1.36 1.33 3. 1.23 1.09 0.80 0.77…

! Required information The diameter of an oxygen (O2) molecule is approximately 0.300 nm. For an oxygen molecule in air at atmospheric pressure and 14.7°C, estimate the total distance traveled during a 1.00-s time interval. m