Please show me how to do e & f. Thanks The painkiller commonly known as aspirin...
Please use picture #1 to answer the chemistry questions in picture #2. Thank you Calculate the theoretical yield of the aspirin. Show all work: 2.50x 180 aSpirin DATA TABLE for ASPIRIN: Mass of salicylic acid (g): Mass of filter paper (g): Calculated theoretical yield of &.So aspirin product: 3.26 Salycylic acid color with Fer FeCl, color tests Your aspirin color with FeCl: Dark pure - Part 2: Mass of acetylsalicylic acid (aspirin) after drying and filter paper Mass aspirin) Calculate...
3. Consider 1.00 mole of hydrogen gas, H2. How many dihydrogen molecules are present? How many hydrogen atoms are present? What is the mass of this sample? 4. Ethanol has a molecular formula of CH3CH2OH. a. What is the average mass of one molecule of ethanol? b. What is the mass of 1.000 moles of ethanol? c. What is the mass of 0.5623 moles of ethanol, CH3CH2OH? d. How many moles of are present in a 100.0 g sample of...
please help on all questions in the pics... numbers: b, c, d, e, f 3. A student collected the following data in the laboratory. mass of flask, g 52.87 mass of flask and sample, g 53.42 concentration of NaOH solution, M 0.101 initial buret reading, mL 23.78 final buret reading, mL Lab 9: Determining Ascorbic Acid in Vitamin C Tablets (b) what volume, in liters, of NaOH solution was used in the titration? O.101 X23.78 4.80356 Mb O.50 (c) How...
Please help me answer questions #1 through #12. Lab information and results are listed to the right side. Thank you! Paragraph . 1マーに 1 HTTL 2 | x' x, | so ea l E 1ヨ回ドもデ. | 2m 규亨ー过1K % Yield g aspirin obtained/ g aspirin calculated x 100 1. Mass of empty Erlenmeyer Flask,EF 2. Mass of EFsalicylic acid 3. Mass of EF+sslicylic acid + acetic anhydride 4. Mass of E 5. Calculate mass of salicylic acid used 8. Calculate...
Just answer and work for questions D and E please. The answer for c is 27.3 grams c) A certain dermatological facial cream (16.0 f. oz, density , 0.960 g/mL) contains 6.00-% HC,H503 by mass. How many grams of HCH,o, are contained in the facial cream? grams of HC,H,O, d) Construct a heat curve diagram for salicylic acid on the graph below. Include labels (and units) for the x-axis, y-axis, melting point, boiling point, ΔΗ,us, and AH,op. Heat Curve Diagram...
question one question two Aspirin lab (10 points) 5. a) Spectroscopy is being used to determine the concentration of aspirin in an unknown sample. The absorbance spectrum of the highest concentration standard [Fe3+, SA) prepared is given below. What wavelength should be used to create the calibration curve for the experiment? Explain your reasoning. 0.14 Absorbance 0.02 250 300 450 500 350 400 Wavelength (nm) Wavelength Explain your reason briefly. b) In this experiment an aspirin tablet was placed in...
NAME _DATE SECTION INSTRUCTOR und to be EXERCISE 10 Moles Show calculation setups and answers for all problems. 1. Find the molar mass of (a) nitric acid, HNO; (b) potassium bicarbonate, KHCO3, and (e) Nickel(II) nitrate, Ni(NO). (b) 2. A sample of mercury(II) bromide, HgBro, weighs 8.65 g. How many moles are in this sample? 3. What is the mass of 0.45 mol of ammonium sulfate, (NH),SO.? 4. How many molecules are contained in 6.53 mol of nitrogen gas, N,?...
11,12,13,14,15-- with clear explanatioms please. thanks so much 11. How many atoms of hydrogen are in 1.00'mole of water? 6.02 x 10 b. 1.20 x 10 c. 1.81 x 10 d. 2.41 x 10 e. 3.01 x 10 a. 12. Determine the number of sulfur atoms in 27.1 g of molecular sulfur (S.). a. 0.845 b. 5.27 x 10 c. 5.09 x 10 d. 2.07 x 10 e. 0.106 13. What is the mass of 2.2 x 10 CO, molecules?...
please show all formulas/work 5. The decay constant of a radioactive source is 0.300/minute. - How much time must elapse before the activity is reduced to… (a) 85%? (b) 25%? (c) 5%? B) The half-life of a radioactive source is 14.0 minutes. - How much time must elapse before the activity is reduced by… (a) 70%? (b) 45%? (c) 20%? C) Radon-222 has a physical half-life of 30.0 days. A 10.24 microgram piece of this source is placed in storage....
e. How many sets of non-equivalent protons are present in Benzoic Acid? f. Label all protons in your structure (Benzoic Acid) and indicate what would be the multiplicity of each set of non-equivalent protons in your compound (singlet, doublet, ect.)? g. How many peaks would you predict would appear in the Carbon-13 NMR spectrum? Please label all carbons in your structure (Benzoic Acid) h. Which carbon atom in your compound would you predict would be the farthest downfield in your...