Answer for the following questions. Q. 1 The progress of chemical reaction is monitored by measuring the volume of productis from time to time during the course of the reaction. Identify the reactant/product for the following reactions whose concentration will be measured to monitor the progress of reaction. N20, 2NO, + 1/20, SO,Cl, *SO+Cl2 CH,N= NCH, N2 + C,H,
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- Using the percent purity calculations, determine the percent yield of synthesis of aspirin. Part I Synthesis of Aspirin Mass of salicylic acid used (g) 2.029g Volume of acetic anhydride used (mL) 5ml Mass of acetic anhydride used (vol. × 1.08 g/mL) 5.4g Mass of aspirin synthesized (g) 3.256g Part II Melting Temperature Data Melting temperature (°C) 133°C Part III Salicylic Acid Standard Stock Solution Initial mass of salicylic acid (g) 0.210g Moles of salicylic acid (mol) 0.0147 mol Initial molarity of salicylic acid (M) 0.724 M Part III Beer’s Law Data for Salicylic Acid Standard Solutions Trial Concentration (M) Absorbance Water (mL) 1 10 0.301 0 2 7.5 0.219 2.5 3 5.0 0.163 5.0 4 2.5 0.074 7.5 Best-fit line equation for the salicylic acid standards Test of the Purity of the Synthesized Aspirin Initial mass of aliquot of product (g)…50.00 cm3 of a 1.5784 mol.dm-3 solution of potassium hydroxide is transferred to an empty 700.00 cm3 volumetric flask. This flask is made up to the mark with distilled water and then shaken well. The concentration of the potassium hydroxide in this second flask is:Stock iron(II) solution (200Ug mL-1 Fe) ferrous ammonium sulfate hexahydrate mass= 0.1437g, transfer it to a 100 ml beaker. add 15 ml approx of water and 15m1 'approx of dilute sulphuric acid (2M H2SO.). then transfer FeII to 100 ml flask makeup to the mark with water. calculate the moles of ferrous ammonium sulfate hexahydrate solution in unit ug/mL.
- Show your work: Balance the following chemical equation: SO2 + H2S ---> H2O + SIn 2017, the atmospheric mixing ratio of CO2 is approximately 410 ppmv. In order to bring the concentration down to pre-industrial levels (275 ppmv), how many teragrams (Tg) of carbon need to be sequestered? (1 ppmv of CO2 = 2184.82 Tg of C)Cat Noir was tasked to determine the concentration of a CuSO4 unknown solution. She prepared 5 different standards of CuSO4 using the table below as her guide. She ran the standards and the unknown solution in the UV-VIS Spectrophometer, and recorded the absorbances of each solution. Show linear equation derived from calibration curve and solution to concentration of the unknown solution below. Encircle final answer. Cuvette Volume 0.5000 M CuSO4 Volume distilled H2O Absorbance 1 1.000 mL 4.000 mL 0.607 2 2.000 mL 3.000 mL 0.655 3 3.000 mL 2.000 mL 0.709 4 4.000 mL 1.000 mL 0.797 5 5.000 mL 0.000 mL 0.832 Blank 0.000 mL 5.000 mL 0.000 Unknown solution 0.684
- 1) Commercial fuming Sulphuric acid (Oleum-H2S2O6) is 99.9% solution. Please convert it into molarity.2) Find out the Volume (dm3) of product (gas) at RTP when 0.58 M, 150 mL NaOH (aq.) reacts with 350 mL, 0.25 NH4Cl.Can you calculate the limiting reagent, theoretical yield and% Reaction Yield shown using reaction stoichiometry? The calculations given in the benzalacetone synthesis experiment were the volume of 3mL of benzaldehyde, 1mL of acetone and the mass of dibenzalacetone 2.69g. With this data I calculated the other data shown in the table. Thank you! Psd.Where it says " Que deseas hacer?" in the photo that is the Benzaldehyde data.Eugenol, the main component of clove oil, can be prepared by heating 2-allyl guaiacol (in the absence of oxygen) to temperatures >205 °C. In practice, however, it is most cost-effective to extract eugenol from cloves, its natural source. Given a weight percentage of eugenol in cloves at 15.0%, calculate the minimum mass of cloves one needs to obtain 8.00 g of eugenol as a product. Report your answer (as a mass in grams, without units) with three significant digits.
- Oceanic uptake of carbon dioxide is thus described:CO2 (g) + H2O ⇔ H2CO3, K = [H2CO3]/PCO2 = 3 x 10-2 M atm-1 H2CO3 ⇔ HCO3- + H+, K = [HCO3-][H+]/[H2CO3] = 9 x 10-7 moles/LHCO3- ⇔ CO32 - + H+, K = [CO32 -][H+]/[HCO3-] = 7 x 10-10 moles/LCharge balance equation:[H+] = [OH-] + [HCO3-] + 2[CO32 ] If the CO2 concentration in the atmosphere is 300 ppm, what is the pH of the ocean?1) The case study screenshot has been attached down below and the last sentence of the story is written down below and answer ques a,b,c which is written down below as well step-by-step. The last sentence of the case study is to save money and had been reducing monitoring, inspections, and maintenance. a) Use the following reaction to determine how much of each product would be released if 42 000 kg (42 tonnes) of methyl isocyanate reacted with excess water. This is the reaction methyl isocyanate + water -> 1,3-dimethyl urea + carbon dioxide b) Create a list of mistakes that led to the Bhopal disaster; you should be able to find at least eight. Evaluate the list of mistakes. Identify the three mistakes you think were most significant in causing the disaster, and justify your choice in a short (2-3 senstence) statement. c) What are some reasons it would have been safer to store the methyl isocyanate in smaller containers? Identify at least three reasons.Explain why it is problematic to include a constraint such as the following in an LP model for a blending problem: Total octane in gasoline 1 blend $ divided by Barrels of gasoline 1 blended daily which is greater thanor equal to 10