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Use the vapour pressures (at 25 °C) of the pure substances below to answer the following...
Substance P* (kPa) cyclopentene (C5H8) 4.59 trichloromethane (CHCl3) 1.75 1. Determine the partial pressure (in kPa) of trichloromethane (CHCl3) in the vapour phase (at -25 °C) over a solution for which the mole fraction of cyclopentene (C5H8) is 0.874. Report your answer to three significant figures in scientific notation.
Answer the following questions based on the reaction below. At 463 K, the rate constant for this reaction is 1.35×10-4 /s and at 655 K the rate constant is 1.52×101 /s. cyclopentane → ethene + cyclopropane 1. Determine the activation energy (EA) (in kJ/mol) for this reaction. Report your answer to three significant figures in scientific notation. Tries 0/3 2. Determine the pre-exponential factor, A (in /s) for this reaction. Report your answer to three significant figures in scientific notation (Please...
-13 1. At 55°c, Kp 5.56 x 10-13 for the following reaction: 2 So2 (g) 02 (g) 2 SO3 (g) Calculate K (not Kp) for the reaction at 55°C. (To enter a number in scientific notation, 1 x 10-3 1E-3) Submit Answer Tries 0/2
Use the data below to calculate AG for the decomposition of nitrosyl chloride at 25°C when the partial pressures are 5.00 atm of NOCI 1.00 x 10-3 atm of NO, and 1.00 x 10-3 atm of Cl, 2NO(g) + Cl2(g) + 2NOCI(g) Substance and State AG: (kJ/mol) Cl(8) 0 NO(g) 87.6 NOCI(8) 66.1 Express your answer in kilojoules per mole to one decimal place. ΠΠΙ ΑΣΦ AG= kJ/mol Submit Request Answer
Thermodynamic properties of pure substances Standard thermodynamic quantities for selected substances at 25 ° C listed alphabetically by most important atom. substance Δ Hf ° (kJ/mol) Δ Gf ° (kJ/mol) S ° (J/mol∙K) Aluminum Al3+ (aq) --- -485.0 --- Al (s) 0 0 28.3 Al2O3 (s) -1675.7 -1582.3 50.9 Al(OH)3 (s) --- -1147.25 --- Bromine Br− (aq) --- -104.0 --- Br2 (l) 0 0 152.2 Br2 (g) 30.9 3.1 245.5 HBr (g) -36.3 -53.4 198.7 Calcium Ca2+ (aq) --- -553.6...
Can you please answer all my questions please. I really need the answers to all the questions please ORC221F/101/3/2019 48. Which of the following statements about benzene is INCORRECT? (1) All twelve atoms do not lie in the same plane (2) All the carbon atoms are sp2 hybridized (3) The C-H bonds are all the same length (4) The electrophilic aromatic substitution reaction is a common reaction type 49. Name the following compound according to the IUPAC nomenclature. (1) N-ethyl-2-bromo-2-methyl-2-pentanamine...
or questions 24-25 answer all the following questions: a)State the Null and Alternate H potheses b) Which is the claim? c) Will you use a z-test, t-test or chi- square test? What is the critical v d) Describe the reject repion as i e) Find the sample statistic 1) Do you reject the claim? Write out your decision in at least one sentence eft tailed, right tailed or two-tailed. 24. The Healthy Food Company makes an Oatmeal and Almond cereal....
The following questions are from an experiment titled Friedel-Crafts Alkylation for Organic Chemistry II Lab. There are pictures attached of the lab manual. 2) Is this method a good route for the preparation of p-sec-butyltoulene? Give reasons for your answer. 3) Why do you use a large excess of toulene. What are its functions? 4) What is the purpose for adding the hydrochloric acid to the water in the separatory funnel in step 5? Hint: If no acid is added,...