CHEM 230L _ exp 2. Recrystallization

Fill out this table.  In the solvent put if soluble or insoluble.

Table 1. Physical Properties of Selected Compounds Density (g/mL) Melting point (°C) Boiling point (°C) Substance Acetanilide 1.22 114 304 Acetone 0.79 -95 56 Benzophenone Bromoform 1.15 48 306 150 2.89 0.98 0.79 2.46 8 -2.4 2,3-Butanedione t-Butyl alcohol Cadmium nitrate 4H;O Chloroform Cyclohexane p-Dibromobenzene p-Dichlorobenzene Diphenyl Diphenylamine Diphenylnethane Ether, ethyl propyl 88 83 25 59 132 1.49 0.78 1.83 -63.5 6.5 86.9 61 81.4 219 1.46 53 70 53 27 174 0.99 255 1.16 302 265 1.00 1.37 -79 64 Hexane 0.66 69 Isopropyl alcohol Lauric acid 0.79 0.88 1.63 -98 83 225 330 43 Magnesium nitrate 6H2O Methyl alcohol Methylene chloride Naphthalene a-Naphthol Phenyl benzoate Propionaldehyde Sodium acetate 3H2O Stearic acid Thymol Toluene p-Toluidine Zinc chloride 89 79 1.34 -98 -97 65 40.1 1.15 1.10 80 218 94 288 1.23 71 314 0.81 1.45 0.85 0.97 -81 58 48.8 123 70 291 232 52 0.87 0.97 2.91 -95 111 45 200 283 732 MAR ...

1. Consider the solubility and boiling point of the following pair of compounds: n-butyl alcohol and diethyl ether. The boiling points for the compounds are 118 °C and 35 °C respectively. The solubility for both compounds is the same (8g/100g water). Explain this observation for (i) boiling point disparity; (ii) solubility similarity   a. H-bonds form in diethyl ether; n-butyl alcohol forms H-bonds in water b. H-bonds form in n-butyl alcohol; diethyl ether forms H-bonds in water c. H-bonds in n-butyl alcohol; Both compounds form H-bonds in water d. Both compounds form H-bonds; Both compounds form H-bonds in water   2. Account for the bond angle differences between (i) H-C-H (109.5°) in methane and H-S-H (90°); H-C-H (109.5°) and H-O-H (107.5°) in water. a. The H-S-H has two lone pairs; The H-O-H has two lone pairs b. The H-S-H has no hybridization at p-orbitals; The H-O-H has two lone pairs c. The H-S-H has two lone pairs; The H-O-H has no hybridization…

Please help me how to solve this question. Thank you very much

Help!

4. CH₂ -NH, Circle the pairs of organic solids which can be separated from each other by solvent extraction using 2M HCI.* CH₂ CH H.C-C-CH-C-CH CH CH H3C- H.C acid + acid → no reaction base + base → no reaction CH₂ -CH₂ -COOH -COOH CH HC-С-СООН CH₂ сну CH H₂C-C-COOH CH -COOH H.C. H.C- b09) 0) YBW 2 CH₂ ht of -сҢ CH3 H.C-С-соон сна ондул -NH₂ 75 0 986 CH CH -COOH -NH₂

Can you fill the rest of the chart please

Organic Chemistry

Please answer all questions

The disinfection of drinking water to control microbial contaminants can form chemical disinfection byproducts. These compounds result from the reaction of chlorine with naturally occurring organic matter (the dissolved molecules that give natural water the yellow-greenish color). One class of disinfection byproducts is the malodorous and unpalatable chlorophenols. 2,4-dichlorophenol is one compound of this class. a) Calculate the vapor pressure p*L of 2,4-dichlorophenol at 60 °C using Tb and structural information only OH .CI M, = 163.0 g/mol Tm = 43.7 °C Tp = 213.0°C %3D %3D %3D

PAP Chemistry-2903012-42100P-1/ Le Chatelier's Principle/ Lesson 128 2. Zinc (Zn) granules react slowly with dilute hydrochloric acid (HCI), but much faster if the acid is concentrated. Zn(s) 2HCI(aq)ZnCl2(aq) + H2(g) Zinc + Hydrochloric Acid Zinc Chloride + Hydrogen What causes the reaction to proceed faster with concentrated acid? The concentrated hydrochloric acid causes more hydrogen gas to be produced. The pressure of hydrogen gas molecules increases as concentration increases. The concentrated hydrochloric acid molecules move faster than in dilute acid. There are more collisions between the zinc and concentrated hydrochloric acid. PREVIOU

The dose makes the poison. Calculate the total volume of pure ethanol in just one Ethanol is highly toxic if it is consumed in large quantities. 23.5 fl. oz. (695 mL) can of American malt liquor, which is 12% volume per volume (v/v) ethanol. Although it is the second least toxic of the five alcohols discussed in this case, the ingestion of large quantities of Enter your answer in milliliters. ethanol is not safe. One serious problem with ethanol consumption is how the quantity is conveyed to the consumer. For example, American malt liquor can be sold pure ethanol: mL in 23.5 fl. oz. (695 mL) cans and is 12% volume per volume (v/v) ethanol. Although these cans are labeled as containing multiple servings, many young people consider one can to be a single serving. Drinking two cans of this beverage can result in an accidental overdose of ethanol. Two cans may not seem like much until you do the math.

Justify the solubility of the samples in the corresponding solvent based on their structure.   Sample                   water 5% NaHCO3 5% HCl 5%NaOH Conc. H2SO4 ether     Aniline                 n-butyl amine                 Acetic acid                 Phenol                 cyclohexanol                 2-Propanol                 Benzoic acid                 bromobenzene                 Ethylene glycol

Use the flow chart and chemical structures shown to answer the question below. X, Y, and Z in diethyl ether • add HCI (aq) • separate HN. но Вох 1 Вох 2 NH2 CH: organic phase aqueous phase X Y Z • add NaOH (aq) • separate • add NaOH (ag) • add diethyl ether • separate Воx 5 Вох 6 aqueous phase Вох 3 Вох 4 organic phase aqueous phase organic phase • add HCI (aq) • add diethyl ether • separate T Воx 7 Вох 8 organic phase aqueous phase Which compound(s) will be found in Box 4 layer? [Choose all that apply] n Y

*Enumerate the classes of organic derivatives of water that are soluble in concentrated H2SO4

Organic chemists often purify organic compounds by a method known as fractional crystallization. An experimenter wanted to prepare and purify 4.85 g of aniline. Ten 4.85 g quantities of aniline were individually prepared and purified to acetanilide. The following dry yields were recorded. 3.86 3.80 3.89 3.86 3.90 3.38 3.63 3.99 3.72 3.83 Estimate the mean grams of acetanilide that can be recovered from an initial amount of 4.85 g of aniline. Use a 95% confidence interval. ( Round your answers to three decimal places.) g to g

i just want to know whether i need to calculate for the theoretical yield for this lab report and if so, how i can calculate for it

months ago F5 DII | Alcohols Lab Part A - Identifying Alcohols Watch the Identifying Alcohols video and record your observations below. https://www.youtube.com/watch?v=OQF8A¡V10 ZQ 1. The samples being tested in this experiment are ethanol, isopropyl alcohol (2-propanol), 1- pentanol, and 2-methyl-2-butanol. Draw condensed structural formulas for each alcohol and classify each as either primary, secondary, or tertiary. Solubility with H20 Observations

please answer all parts