Mixture Components: . . (1) ArCOOH, benzoic acid (2) ArOH, 2-naphthol... (3) Arc1, p-dichlorobenzene . DATA Mass of mixture used .MP: 123 C .MP: 123°C .MP: 53°C mg 15 . pka: 4.17 pka: 9.51
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- ICE (SOs] = | M CH20] = 2 M • Construct (CE Table Given: %3D Find ko. SO3 6) + H,0 c9) ラH2SO4 ca)Provide the names for the following (3 points each): a) Blank 1 b) Blank 2 c) Blank 3 Last saved 8:04:23 PM Questions Filter (8) aming1.png н-с-с-с-н | | | CI H НО CH3 H ||| дн receipt-6935.20227....book Н w 0. ACEC $20 Week 13....pdfPlease consider the CF4 compound and Table A below; answer the following answer: The order is: Table A A₁ A₂ E 7₁ 1₂ E 1 1 2 3 3. SC₁ 1 1 -1 0 30₂ 65 I 1 0 -1 -1 132.3 pm 1 2 F -1 0 1 -1 6cra 1 -1 -1 1 (R₁, R₂. R.) (x, y. 2) CF F 2+²+2 (22²-2²-2²-y) (ry, 12, yz)
- Collig Notes (1).pdf A ALEKS -Jeneen Abdelra x M Mathway | Algebra Prol x G molar mass of zinc chi X Launch Mecting Zoom x G 0 16kg to g-Google Se x www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-lix5uFZVj2iEJjQd1WoxT77ErtzZpGbzESWCdKA-XuxbGs-AaPzd3NjMOpEj fK yyMe4DwaRdZ3h4BNyNo400u O GASES, LIQUIDS, AND SOLIDS 三I Using the Kf and Kb equations with electrolytes Jeneen V A certain liquid X has a normal freezing point of -0.10 °C and a freezing point depression constant K,=4.18 °C-kg-mol Calculate the freezing point of a solution made of 38.g of urea (CH,N,O) dissolved In 650. g of X. 4" Round you answer to 2 significant digits. I °C x10 © 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy | Accessibility Check Explanation Gp148409766/materials/gp/2496058638 (5) Practice Dashb... Desmos | Graphing... Q Learn: English voca. gy - final assessment.docx ab 2 /2 > 157% 5. Calculate AH for the reaction N2H4 (1) + O2 (g) - N2 (g) + 2 H20 (I) given the following data: 2 NH3(g) + 3 N;O(g) ----> 4 N2(g) + 3 H2O(1) AH° = -1010. kJ N2O(g) + 3 H2(g) ----> N2H¾(1) + H2O(I) AH° = -317 kJ 2 NH3(g) + 1/2 O2(g) ----> N2H4(1) + H¿O(1) AH° = -143 kJ H2(g) + 1/2 O2(g) ----> H2O(1) AH° = -286 k) ** Be sure to show all of your manipulated equations. rr Sign out10:31 „0. O O ? 86%i E AIATS For Two Year Medic... A 85 /180 (02:53 hr min Mark for Review For which of the following compounds, Kjeldahl's method is applicable? CH3 - NO2 -N = N- CH3 -C - NH2 Clear Response II
- B Brock Sakai : CHEM 1P91 - Fall X b My Questions | bartleby ChemTeam: Combustion Analys X G oxygen molar mass - Google S X + A Ims.brocku.ca/portal/site/90b45528-0b04-4bd2-85b6-897046a1e998/page/7011eaa9-4e38-4b06-9e15-1973abb58ef6 Version 264 Assign 4 2 / 2 100% + | CHEM 1F92 Assignment 4. Stoichiometry, Oxidation-Reduction Consider the following net ionic equation for a redox reaction: 2 MnO4 + 2 H2O+ →2 Mn04¯+2 OH¯+ H2 8. (a) Which reactant gets oxidized? (c) Which reactant is the oxidizing agent? (d) Which reactant is the reducing agent? (b) Which reactant gets reduced?Continued... 5. Answer ALL parts of this question The stability of chloramphenicol in eye drops is being studied at different temperatures and times. The concentration (in mg/L) of chloramphenicol at three different temperatures over time is provided below. Time (day) -18°C 25°C 40°C 25 28 23 7 27 20 20 30 20 21 20 180 23 25 19 (a) Using the data in the tables below assess and explain if the reaction time (after 1 hour of the start of the reaction) was an important factor affecting the yield of the reaction and provide the null hypothesis of the statistical test carried out. (b) The amount of chloramphenicol at -18 °C seems to vary with some values appearing to be higher than others. Explain what may be causing this variation AND suggest a methodology to identify if there was a systematic error in the measurement. ||12:49 1 Send a chat Paragraph Styles Edit I 1 2 . 3 4 L..5 . 6.. I 7.. Problems from Periods 18-19: 1. Gasoline combustion engines run on the following balanced chemical reaction between octane (CH) and oxygen (0.): 20,H1 (g) + 250, (g) 16CO, (g) 18H,0 (g) A small car's gas tank holds 34292 grams (75.6 |bs) of gasoline. a. How many grams of the greenhouse gas CO, are produced by one tank of gasoline? Convert that number to pounds (Ibs). b. How many grams of O, are necessary to completely react with one tank of gasoline? CPacus
- x Correction-s130467@student.sc M x SQU E-learning System x 3.1-3.2 A mail.google.com/mail/u/0/%#inbox/FMfcgzGlkjjMgVmNZXxPILTWwnvBpwpm?projector- Google Open with Google Docs the concentration oI sullate 1ons. [SO22(aq)] 3 × 0.005000 M =0.01500 M 2. A standard solution of FeCla was prepared and its molar concentration was determined to be 2.000 M. This solution was labeled as solution A Then a 10.00-mL aliquot of solution A was added to a 50.00-mL solution of CoCl2 of unknown molarity. This solution was labeled as solution B. Finally, 25.00 mL of solution B was transferred to a 500.00-mL volumetric flask and distilled water was added to the calibration mark. This solution was labeled as solution С. If the concentration of the chloride ions in solution C was found to beDL IXL - Area and circur X E Hamilton w K Maya Paniagua - Sto x K Maya Paniagua - L10 X Stoichiometry Introd x amihq.com/web/viewer.html?state=%7B"ids"%3A%5B"1Jb_fUymErbX45jcXDbRuMhdNQC9zAIBE"%5D%2C*action"%3. Paniagua - Cl. 115% e A Kami Uploads Maya Paniagua - Stoichiometry WS1.pdf Chemistry Stoichiometry WS #1 Show all work!! No work = no credit! Per Date Name Mole to Mole Stoichiometry 1) For the reaction between magnesium fluoride and lead (IV) nitrate, there are 12 mol of magnesium fluoride available: a. Write and balance the chemical equation, indicate the type of reaction b. Find the mole amount of each species in the chemical reaction c. How many moles of the solid precipitate are formed?50 Percentage Red No. 40 Soln 100% 80% 60% 40% Table 4.1: Dilutions of Red No. 40 & Absorbance Volume of Red No. 40 Soln (mL) 10me 8mL опи 4mL Percentage Red No. 40 Soln 100% 80% 60% 40% 20% Volume of DI Water (mL) OML 2mL LIML M UML 8ML Table 4.2: Dilutions of Red No. 40 & Absorbance Concentration Red No. 40 2. Report the wavelength with the maximum absorbance of Red No. 40 dye. Absorbance 20% 2ML Part A: Making a Calibration Curve for Beer's Law 1. Calculate the concentrations of each of your diluted Red No. 40 solutions and add these to Table 4.2. Show at least one sample calculation in the space below. 0.251 0.192 Total Volume 0.181 0·119 0.060 (mL) 10 mL 10 mL 10 mL 10 mL 10 mL