Lesson Plan January 2024

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student found a bottle of unknown origin in the basement of an "CAUTION—contains С₁H₁O.” No other A old house. The bottle was labelled information was given, but inside the bottle were some white crystals. The student took the bottle to a chemistry laboratory, where she analyzed the crystals with the help of the laboratory staff. C₁2H₁6O reacted with Br₂ in CCl4 adding one mole of Br, and forming C₁₂H₁OB2₂. When a sample of C₁₂H₂O was reacted with O3 followed by Zn/H₂O, two different samples, J and K, were obtained. Compound J had a molecular formula of C.HgO₂, and its NMR is shown below. Compound K had a molecular formula of C₂H₂O, and it could be oxidized to compound L, with a molecular formula of C₂H₂O₂. The IR spectrum of L showed a very wide, strong band centred around 3000 cm*¹. The NMR spectrum of L showed only two different absorptions: a doublet (6H) at 0.9 ppm and a septet (1H) at 3.6 ppm. There was also a singlet (1H) off the scale at 11.8 ppm. students, deduce possible…

CHEMICAL REACTIONS Balancing chemical equations with interfering coefficients Balance the chemical equation below using the smallest possible whole number stoichiometric coefficients. CH; (CH,) CH, (1) + 0,(g) → Co,(g) + H,0(g) 5

Please provide the answer in Litres with 3 significant figures.

ortin X TETAAZEN ce/acellus_engine.html?ClassID=177151 tions + Use the data below to determine the mass ratio of iron to oxygen for compound 1. Et Compound 1 2 nternational Academy of Science. All Rights Reserved. Mass Fe (grams) 15.55 20.98 [P]:1 Enter the answer that belongs in the green box. Iron Ratio Cmpd 1 Mass O (grams) 4.45 9.02 * C Enter

HSC 258 Major Projec X Mind Tap - Cengage Lea X d%3D55750828934189288909969212&elSBN=9781305657571&snapshotld%3D219989 The illustration to the left represents a mixture of iodine ( purple ) and fluorine ( green ) molecules. If the molecules in the above illustration react to form IF3 according to the equation I +3 F2 2 IF3 , the limiting reagent is the number of IF, molecules formed is and the number of atoms/molecules in excess is Submit Answer

ra.westemt.edu, Current Students .. B5 Blackboard E Psych Text. P Diversity Text. O CHEM ZOOM BlueStacks s Gail YouTube Outlook Remaining Time: 1 hour, 25 minutes, 39 seconds. * Question Completion Status: QUESTION 19 When 0.440 mol of aluminum are allowed to react with an excess of chlorine gas, CI 2, how many moles of aluminum chloride are produced? [SHOW YOUR WORK FOR THIS PROBLEM] O 0.440 mol O 0.330 mol O 0.110 mol O 0.880 mol O 0.220 mol QUESTION 20 When 50 0 a of acetvlene is allowed to react with excesS Oxvgen 75.0 g of CO a are formed What is the percent vield of carbon dioxide? Save All Answers Clo Click Save and Submit to save and submit. Click Save All Answers to save all answers. P Type here to search hp

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I couldn't put both sections of the question into one picture, so please solve both sections. Thank you.

Determining Diet. One method for determining the amount of corn in early Native American diets is the stable isotope ratio analysis (SIRA) technique. As corn photosynthesizes, it concentrates the isotope carbon-13, whereas most other plants concentrate carbon-12. Overreliance on corn consumption can then be correlated with certain diseases, because corn lacks the essential amino acid lysine. Archaeologists use a mass spectrometer to separate the 12C and 13C isotopes in samples of human remains. Suppose you use a velocity selector to obtain singly ionized (missing one electron) atoms of speed 8.50 km /s, and you want to bend them within a uniform magnetic field in a semicircle of diameter 25.0 cm for the 12C. The measured masses of these isotopes are 1.99 * 10-26 kg (12C) and 2.16 * 10-26 kg (13C). (a) What strength of magnetic field is required? (b) What is the diameter of the 13C semicircle? (c) What is the separation of the 12C and 13C ions at the detector at the end of the…

Oxide % Composition Calcium Oxide (CaO) Phosphate (P2O5) Magnesium oxide (MgO) Silicon Oxide (SiO2) Iron Oxide (Fe,O3) Aluminium Oxide (Al2O3) 48.21 37.77 1.29 0.12 0.09 0.08 Moisture 0.15 Loss on ignition 0.21 From "Bone ash influence on soil consolidation" by G.M. Ayininuola and D. Akinniyi This table displays the chemical make-up of human bones. Below, you can see an example of an amino acid, which is what makes up proteins. Proteins are a major component of human skin. HSe. H,N- HOʻ Structure of selenocysteine, from Wikipedia 8. a. What type of chemical bonding is predominately occurring in bones? b. Using the given information and recalling what we learned about bonding models back in Unit 1, explain how X-rays are able to show us bone damage, even though bones are under our skin.

What is calibration and why is it essential in relation to food analysis? Provide examples.

The mass defect for the reaction shown below is amu. The atomic masses are He (3.0160), 4He (4.0026). TH (1.0078). 1. 2 He → „He + 2 H Enter your answer in decimal format using two decimal places, (value ± 0.003).

Give detailed Solution...show work..don't give Handwritten answer..don't use Ai for answering this

9) An experiment was done in which zinc was reacted with hydrochloric acid in a vessel to make hydrogen gas and zinc chloride. After heating off everything in the dish except the remaining solid zinc chloride, this data was considered: Mass of empty evaporating dish: 113.5 g Mass of evaporating dish + zinc (before the reaction): 116.0 g Mass of evaporating dish + zinc chloride (at end of exp't): 118.8 g Given the following lab data, what is the empirical formula of zinc chloride? A) ZnCI B) Zn4CI C) Zn2Cl D) ZnCl2 E) Zn2Cl4

Q29 Santa Monica Big Blue Bus operates a fleet of CNG buses, which run on compressed natural gas (CNG), natural gas that has been compressed into a much smaller volume in the fuel tank. A newly designed CNG vehicle carries about several thousand cubic feet of compressed natural gas which contain 72 kg (kilograms) of carbon. If all of the natural gas is burned, how many kilograms of carbon dioxide will be emitted into the atmosphere? Assume no residue remains and the carbon dioxide is the only product in the combustion. If you are presenting this question, please explain the following: The steps in the calculation process O Please write out the steps involved in the conversion process including the units O Please explain how to operate on the units Please explain how to manipulate the powers of ten by hand (e.g. product rule and the quotient rule) How to apply the appropriate rule to the calculation: O addition-subtraction rule ("the decimal places rule"), OR multiplication-division…

I am stuck on question 4, I found everything else and I am stuck on the last part

M McGraw-Hill Educ.. O Aeries Student Da... * Displaying IMG 2... Meet - jib-mxdm-.. O 4.35 kg CH, +30, 2CO, + 2H,O If you start with 45.9 g of C,H,, and excess O, what mass of CO, will be produced? * 2' O 36.0 O 48.0 g 144 g O 72.0 g