Each of the following substances is a liquid at –50°C. Place these liquids in order of increasing vapor pressure: dimethyl ether, propane, and ethanol. O dimethyl ether(CH30CH3), propane(C3H8), and ethanol(CH3CH2OH). dimethyl ether < ethanol < propane ethanol < dimethyl ether < propane propane < dimethyl ether < ethanol ethanol < propane < dimethyl ether
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- Arrange the following molecules in order of increasing boiling point. These are all long hydrocarbon chains. The middle portions are described as the number of repeating CH2 units. H3C (CH2)11-CH3 H3C (CH2)8CH3 H3C (CH2)5-CH3 I II III |=|l=II| A. OB. >ll>II| OC. IlI>ll>| A Moving to another question will save this response. «Ball-and-stick models for four hydrocarbons that each contain six carbon atoms per molecule are shown below. Rank these compounds in order of decreasing Sº values (all are liquids under standard conditions).v ints. That is, choose 1 next to the substance with the highest boiling Rank the elements or compounds in the table (Choose one) point, choose 2 next to the substance with th 1 (highest) chemical symbol, substance chemical formula or Lewis structure H : 4 (lowest) H C C N C H (Choose one) A H. H H :NEN 0: (Choose one) В H :0: H. |I . I (Choose one) C Н—С — С - О- С — Н .. H H. F2 (Choose one)
- 1. Alkane Boiling Point Trends Molecular Formula Hydrocarbon Name Boiling Point (°C) CSH12 C6H14 CH16 C3H18 2. Organic Compound Boiling Points Compound Name Total Number of Carbons Boiling Point (°C) Propane 3 -42 2-Propanol Propanal Propanone Ethyl methanoate Propanoic Acid Methoxyethane 3. Organic Compound Solubility Compound Name Total Number of Carbons Solubility in Water Oil Insoluble Ethanol 1-pentanol 1-decanol methoxymethane Propanoic Acid Propyl ethanoate Propanamine 3. Amine Boiling Points Compound Name Total Number of Carbons Boiling Point (°C) Propanamine N-methylethanamine N,N-dimethylethanamineGlycine is an amino acid made up of carbon, hydrogen, oxygen, and nitrogen atoms. Two samples of glycerine are combusted during an experiment to determine the empirical formula of glycerine. Sample 1: Combustion of a 0.2036 g sample produced 132.9 mL of CO2 at 25°C and 1.00 atm. and 0.122 g of water. Sample 2: 0.2500 g of glycine is treated in such a way that all the nitrogen atoms are converted to N2 gas. The volume of the nitrogen gas collected was 40.8 mL at 25°C and 1.00 atm. Determine: 1. The percentages of carbon and hydrogen in glycine. 2. The percentage of nitrogen in glycine. 3. The percentage of oxygen in glycine. 4. The empirical formula of glycine.Predict the temperature at which CuSO4·5H2O undergoes dehydration. CuSO4·5H2O (s) <=> CuSO4 (s) + 5H2O (g) ΔfHo -2280 -771 -242 kJ mol-1 Smo 300 109 189 J K-1 mol-1 T >= ______ K. 3 sig. fig.
- (a) How do the structures of these molecules account for these differences in boiling point? Provide a full account of the structures and their influence on the differences in this physical property. Name Boiling Point methane -161.6 °C methanol 64.7 °C propane -42 °C propan-1-ol 97 °C101 Chem101 Pt Periodic Table - Ptable Answered: Using the data in the cf2o lewis structure - Google Sea X O X A app.101edu.co Question 16 of 34 Submit Liquid butane is used in cigarette lighters. The boiling point of butane at 1 atm pressure is -1.0 °C and its AHvap is 22.44 kJ/mol. What is the pressure (in atm) of the butane in the lighter at 25.0 °C? atm 1 2 4 C 7 8 9. +/- х 100 8:03 PM 12/13/2021 ...The boiling points (at 1 atm of pressure) of several organic and inorganic materials are included below: Chemical Chemical Formula ВР (°С) Water H2O 100 Acetone C3H60 56 Dichloromethane CH2CI2 39.6 Diethyl Ether C4H100 34.6 Dodecanoic Acid С10Н2002 269 Ethanol C2H60 78.4 Formic Acid CH2O2 100.8 Hexane C6H14 68 Hydrogen Sulfide H2S -60 Toluene C7H8 |110.8 Xylene С8Н10 139 Using the language of intermolecular forces, what insights can you offer to explain the data?
- Acrylonitrile and ethyl acetate have the same boiling point: 77.20C. Which statement explains the outcome you would expect if a mixture of these two substances were distilled? * The acrylonitrile would vaporize first and the ethyl acetate would be left behinc O The ethyl acetate would vaporize first and the acrylonitrile would be left behind Both substances would vaporize at the same time so distillation would not be h Ethyl acetate is a solid so distillation would involve allowing the acrylonitrile to evaporate. Which statement best explains why structural formulas are good for depicting polymers?Q2) 90 proof bourbon is 45% ethanol (CH,CH2OH). Determine each of the following for this material. You may need to know that the density of this bourbon is 0.9227 g/ml (1), pure ethanol is 0.7893 g/mL (2), and water (assume the rest is just water) is 1.00 g/mL. a) What is the mole fraction ethanol? b) What is the molarity of the ethanol? c) What is the molality of the ethanol? Q3) Exercise #23 from your text has CO2 in a drink at 0.10 M concentration but only under high pressure. When you open a can, the pressure drops to 1.0 atm. How much (moles) CO, is released from the can when it is opened? [Note: think about how #23 was solved and then do that again for the changed question here. The difference should give you your answer..] Q4) Assuming ideal solution behavior, what is the boiling point of a solution of the sugar solution in Q1 above? [You will need table 11.2 from the text for this)9C. The fuel in pocket lighters, butane, is a gas at room temperature with a boiling point of 0.0°C at 1.00 atm. However, butane is a liquid in these devices because the fuel is stored under pressure. Compute the minimum pressure required for butane to be a liquid at 25°C. In other words, compute the pressure at which its boiling point is 25°C. Some possibly useful information for butane: AH=4.661 kJ/mol AHvan-22.9 kJ/mol