Ferrox Test Reagent: FENH4(SO4)2 (Crystal of ferric ammonium sulfate) + KSCN (Crystal of potassium thiocyanate) Compound Structural Formula Theoretical Result (Short and Specific) hyl Ether naldehyde nols
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- 1. Which of the following compounds can form hydrogen bonds with water?a. octaneb. HClc. NaCld. acetic acid2. Maria wants to determine the percent water content of an unknown hydrate of AB. Given the following data:mass of empty crucible - 12. 2784gmass of AB · xH20 + crucible - 17.4960gmass of AB + crucible - 15.1314gCalculate the % water content of the hydrate3. From the above data, give the correct formula for the hydrate. (AB₂ Molar mass = 129.84 g/mol)1-A bottle of Na2EDTA.2H2O is labeled with an assay of 100.5%, what is this implied?What is the result of heating to 100 ºC?CH.8 #8 - Please fill in the blank, cirlce your answer for thumbs up!
- 4g 5 g 2 g 100 g 49." R Lactic acid Salicylic acid Trichloroacetic acid Flexible collodion qs ad Sig: wart remover. Use as directed. (a) Flexible collodion contains 20% w/w camphor and 30% w/w castor oil. How many grams of each would be contained in 30 g of the mixture? (b) The specific gravity of castor oil is 0.955. How many milliliters of the oil is contained in 30 g of the mixture? (c) If the specific gravity of the mixture is 0.781, what are the percent w/v con- centrations of lactic acid, salicylic acid, and trichloroacetic acid in the mixture?2-Methylcyclohexanol (5 mL, d=0.929g g/ml, MW= 114.19) was heated under reflux with 5mL of 85% phosphoric acid. What is the theoretical yield of the product for this reaction? a) 4.5 g b) 3.9g c) 3.2g d) 2.9g e) 2.5gA student runs a TLC of a sample using a nonpolar development solvent. The TLC shows one spot. The MP of the same sample is 115.5 - 118.2 oC. What can we conclude from the experimental results. Group of answer choices The incorrect development solvent was used. The sample is pure. The sample is non polar. The sample is polar.
- At -28 C sodium bromide and water from a eutectic mixture which contains 48 % NaBr by weight. What is the maximum weight of pure NaBr that can be recovered from a mixture containing 80 g NaBr and 20 g water? a. 33.3 g b. 28.6 g c. 66.6 g d. 40 gWhat is the simplest CGS unit for "poise"?Given the information listed below, identify the compound. Physical description: This substance is a colorless but fragrant liquid that is oily in appearance. Chemical information: Observed Melting point: -78.5 °C Observed Boiling point: 138-142 °C Calculated MW: 130 g/mol Density: 0.876 g/cm3 Solubility in water: Minimally soluble, Other: Flash Point: 77 °F Spectroscopic information: IR bands indicate this compound contains C-H functionalities and the appearance of a strong stretch near 1700 cm-1 as well as several strong bands between 1500 and 1000 cm-1. The C-13 NMR spectrum for this compound indicates 6 unique carbon atoms and no cyclic structure. The proton NMR data indicate 5 sets of unique protons. C-13 NMR data of : PPM: 171.08, 63.13, 37.48, 25.18, 22.51, 20.96 Int: 222, 887, 645, 635, 1000, 473 Assign: 1, 2, 3, 4, 5, 6 H-1 NMR Assign: A, B, C, D, E Shift: 4.095, 2.037, 1.693, 1.521, 0.926
- In what order should the following methods be used to separate a mixture containing sand-sugar-alcohol and water into its components? 1) Adi distillation II) Fractional distillation HII) Filtration under vacuum B. II, I, II C. III, I, II D. 1, III, II E III, II, IPlant pigments in spinach were separated with TLC with cellulose as thestationary phase and 80/20 diethyl ether/acetone mixture as themobile phase. If needed, the solvent structures in the lab Appendix.1. Determine the Rf values of each plant component on this TLC plate.2. Arrange the plant components from most polar to most nonpolar. Please answer both 1 and 2 (picture below is the same question attached )STARTING WITH 18ML OF 2-methyl-2-butanol