Please answer all questions Using the pressure-temperature nomograph in appendix D of the tab book or...
Please answer all of 9 The boiling point of water decreases when a. Salt is added to it When the external pressure is increa When external pressure is decreased When it is frozen d. 9. 0) What is the formula for Aluminum chloride? The density of 5.0 mass% Aluminum Chloride (i) What is the molality(m)? solution is 1.09 g/mL. (ii) What is the molarity(M)? (iv) (v) (vi) Is it a strong electrolyte or a weak electrolyte? What is the concentration...
please answer all questions JUST ANSWER THIS PLEASE <Chapter 17 - Temperature, Thermal Expansion, and the Ideal Gas Law Item 12 12 of 13 > Constants Periodic Table The gauge pressure in a helium gas cylinder is initially 33 atm. After many balloons have been blown up, the gauge pressure has decreased to 6 atm. Part A What traction of the original gas remains in the cylinder? Assume that the temperature of the gas is constant Express your answer using...
Please see online the molecular wheights if needed please answer all questions throughly density of acetic anhydride is 1.08 Report the melting point range of aspirin and compare it to the literature value in a t format 2. able 3a. Calculate the moles of aspirin that salicylic acid would form if it were the limiting reactant. Use proper significant figures, units and show all work. 3b. Calculate the moles of aspirin that acetic anhydride would form if it were the...
what would be my percent yield if i retrieved 3.1020 grams of soap? thank you, please show all work. SAPONIFICATION (HYDROLYSIS OF A FAD Fats and edible oils consitute a special class of esters called riglycerides in which alcohol part of the molecule, the trihydroxy compound glycerol, forms with three molecules of various long-chain carboxylic acids (called fatty acids). Ty reactions of simple esters can also be carried out on fats and oils,i acid-or-base-catalyzed hydrolysis. three ester linkages carboxylic acids...
Please explain the correct answer to all three questions. Thank you! Incorrect Question 11 0/1 pts A 25.0 mL sample of a solution of a monoprotic acid is titrated with a 0.115 M NaOH solution. The titration curve below was obtained. Which of the following indicators would be best for this titration? 12.01 10.0 8.0 pH of solution in flask 6.01 Equivalence Point Indicator methyl orange methyl red bromocresol purple bromthymol blue thymol blue phenolpthalein pka 3.46 5.00 6.12 7.10...
please answer as many questions with detail. 1. Evaluate how much "weight" (mass, strictly speaking) an average human loses daily due to gas exchange while breathing. Find all necessary data, indicate your sources, and present a detailed calculation. 2. 10.00 g of a Mg-Al alloy completely dissolved in hydrochloric acid. The volume of hydrogen gas given off in the chemical reaction is 12.29 L Find the mass composition (in mass %) of the alloy. Assume that the volume of 1...
I did an experiment where I synthesized 2-phenyl-2-propanol using the grignard reaction. please help me answer these lab questions Reagents Moles of Reagent 0.00142 moles (0.224 g)bromobenzene 0.00712 mol (0.173 g) 2 mL of THF (n/a moles) tetrahydrofuran 0.00142 mol (0.083g, 0.11mL) acetone, HPLC grade, anh Reagent Name FW 157.75 24.31 n/a 58 Comments Mg powder grind before using must be anhydrous must be anhydrous Pre-Lab Assignment: 1. Determine the volume (mL) of bromobenzene needed for the experiment. Obtain the...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification Reactions Q: Calculate the expected mass of both methyl salicylate and aspirin assuming 100% yield. EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
Please answer questions 16-15, 16-16, & 16-17 completely. Please do not copy previous answers. Will rate! or why not? If so, how should they screen them? Continuing Case Carter Cleaning Company The New Safety Program A chronic problem the Carters (and most other laundry owners) have is the unwillingness on the part of the cleaning/spotting workers to wear safety goggles. Not all the chemicals they use require safety Employees' safety and health are very important matters in the laundry goggles,...
please answer all these questions, thank you. CHEM 242L Exp. 4 Report/ Synthesis of Oil of Wintergreen Name Score: 20 1) Assess the effectiveness of the experiment and your technique by A) reporting the yield of each step in grams and percent as well as the overall percent yield (What is "overall percent yield?). SHOW ALL CALCULATIONS! B) Give a complete analysis of the identity and purity of your final product and any isolated intermediates 2 What was the purpose...