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Question 12 (2 points) The molecules butane and 2-methylpropane both have the formula C4H10. Their space-filling...
The boiling points of t-butyl methyl ether (2-methoxy-2-methylpropane) and n-butyl methyl ether (1-methoxybutane) differ...
The boiling points of t-butyl methyl ether
(2-methoxy-2-methylpropane) and n-butyl methyl ether
(1-methoxybutane) differ by 16 degrees (71 and 55 °C), even though
they have the same molecular weight. Draw the two structures
below:
The boiling points of t-butyl methyl ether (2-methoxy-2-methylpropane) and n-butyl methyl ether (1- methoxybutane) differ by 16 degrees (71 and 55 °C), even though they have the same molecular weight. Draw the two structures below: Which compound has the higher boiling point and why? 1-methoxybutane has...
2.51 correct Question 12 0/2 pts How many butane molecules are in 32.4 liters of C4H10...
2.51 correct Question 12 0/2 pts How many butane molecules are in 32.4 liters of C4H10 gas at STP? 2.70X1023 6.45X102 2.46X1024 13710 Question 13 Not yet graded/5 pts Free Response For questions A and B. A hydrocarbon containing 85.7% of carbon and 14.3% of hydrogen was burned in a tigid, enclosed box with the pressure
10 Both of the molecules shown below have the same molecular formula. C2HO One of these...
10 Both of the molecules shown below have the same molecular formula. C2HO One of these molecules boils at-24°C and the other molecule boils at 78.37°C. НН НН (i) which molecule boils at the higher temperature - molecule (I) or molecule (l) (% point) (ii) what kind of bonding exists between molecules of molecule (0)? 1% point) (ii) what kind of bonding exists between molecules of molecule (I)? 1% point)
12 Ethanol and dimethyl ether both have the same molecular formula, C2H60. However, the boiling point...
12 Ethanol and dimethyl ether both have the same molecular formula, C2H60. However, the boiling point of ethanol is much higher (78°C) than that of dimethyl ether (-25°C). What could be the explanation for this difference?
For each of the pairs of molecules below choose that one that is the answer to...
For each of the pairs of molecules below choose that one that is the answer to the question asked and, for each choice, provide a justification H A. Which of the molecules to the right would be expected to have the higher viscosity? H-¢-OH H-C-OH н-сон H 1 are on 2 glycerin MW: 62 Carbon tetrachloride MW. 153.6 B. Of the molecules to the right which will likely have the higher boiling point? 3 H-CI 4H- C. The molecules to...
2. Identify the strongest type of intermolecular forces in acetone, ethanol, water and hexane. (Structures listed...
2. Identify the strongest type of intermolecular forces in acetone, ethanol, water and hexane. (Structures listed on page 15.) Experiment 2 Intermolecular Forces There are three general types of intermolecular forces. All substances exhibit London Dispersion Forces (LDF), and they are generally the weakest of the three types. These London forces are due to the attractions between small, temporary dipoles that arise from the constant, random movement of the electrons in a substance. As molar mass increases, the size of...
Week 10- Constitutional isomers Constitutional isomers have the same molecular formula, but their atoms are bonded...
Week 10- Constitutional isomers Constitutional isomers have the same molecular formula, but their atoms are bonded in different orders. These may be further distinguished as chain isomers, which differ only in hydrocarbon chain structure, positional isomers, which differ in the location of a functional group, and functional group isomers which differ in the nature of their functional groups. Typically chain and position isomers show only modest differences in their physical and chemical properties, while functional group isomers differ greatly from...
This is a Mixed question/It is worth 2 points/You have unlimited attempts/There is no attempt penalty...
This is a Mixed question/It is worth 2 points/You have unlimited attempts/There is no attempt penalty 04 Question (2 points) Q See page 252 The physical and chemical properties of a molecule depend on its structure. Here are two ball-and-stick models for two compounds that have the same molecular formula but different structures and different chemical properties. Ethanol Dimethyl ether 3rd attempt Part 1 (1point) See Periodic Table See Hint Using the models. which of the following is true? 0...
Wrap up question 1: You have a liter of liquid nitrogen at -250 C, well below...
Wrap up question 1: You have a liter of liquid nitrogen at -250 C, well below its boiling point. What happens as you add heat to the liquid nitrogen, before it reaches its boiling point? Wrap up question 2: You have a liter of liquid nitrogen at -250 C. If you raise the temperature to -195 C, the nitrogen will convert to the gas phase. You continue to add more heat to the nitrogen, so what happens to the temperature...
Question 11 0.3125 / 0.5 points Consider these two constitutional isomers: CH3OCH3 and CH3CH2OH. Both of...
Question 11 0.3125 / 0.5 points Consider these two constitutional isomers: CH3OCH3 and CH3CH2OH. Both of them are made of the same type and same number of atoms (C2H60), but the atoms are arranged differently. Associate the following statements to a pure sample of one or both of these compounds. A pure sample containing this kind of chemical species has a boiling point of +75 °C. This chemical species contains an alcohol functional __2_- group. This chemical species contains an...
The boiling points of t-butyl methyl ether
(2-methoxy-2-methylpropane) and n-butyl methyl ether
(1-methoxybutane) differ by 16 degrees (71 and 55 °C), even though
they have the same molecular weight. Draw the two structures
below:
The boiling points of t-butyl methyl ether (2-methoxy-2-methylpropane) and n-butyl methyl ether (1- methoxybutane) differ by 16 degrees (71 and 55 °C), even though they have the same molecular weight. Draw the two structures below: Which compound has the higher boiling point and why? 1-methoxybutane has...
2.51 correct Question 12 0/2 pts How many butane molecules are in 32.4 liters of C4H10 gas at STP? 2.70X1023 6.45X102 2.46X1024 13710 Question 13 Not yet graded/5 pts Free Response For questions A and B. A hydrocarbon containing 85.7% of carbon and 14.3% of hydrogen was burned in a tigid, enclosed box with the pressure
10 Both of the molecules shown below have the same molecular formula. C2HO One of these molecules boils at-24°C and the other molecule boils at 78.37°C. НН НН (i) which molecule boils at the higher temperature - molecule (I) or molecule (l) (% point) (ii) what kind of bonding exists between molecules of molecule (0)? 1% point) (ii) what kind of bonding exists between molecules of molecule (I)? 1% point)
12 Ethanol and dimethyl ether both have the same molecular formula, C2H60. However, the boiling point of ethanol is much higher (78°C) than that of dimethyl ether (-25°C). What could be the explanation for this difference?
For each of the pairs of molecules below choose that one that is the answer to the question asked and, for each choice, provide a justification H A. Which of the molecules to the right would be expected to have the higher viscosity? H-¢-OH H-C-OH н-сон H 1 are on 2 glycerin MW: 62 Carbon tetrachloride MW. 153.6 B. Of the molecules to the right which will likely have the higher boiling point? 3 H-CI 4H- C. The molecules to...
2. Identify the strongest type of intermolecular forces in acetone, ethanol, water and hexane. (Structures listed on page 15.) Experiment 2 Intermolecular Forces There are three general types of intermolecular forces. All substances exhibit London Dispersion Forces (LDF), and they are generally the weakest of the three types. These London forces are due to the attractions between small, temporary dipoles that arise from the constant, random movement of the electrons in a substance. As molar mass increases, the size of...
Week 10- Constitutional isomers Constitutional isomers have the same molecular formula, but their atoms are bonded in different orders. These may be further distinguished as chain isomers, which differ only in hydrocarbon chain structure, positional isomers, which differ in the location of a functional group, and functional group isomers which differ in the nature of their functional groups. Typically chain and position isomers show only modest differences in their physical and chemical properties, while functional group isomers differ greatly from...
This is a Mixed question/It is worth 2 points/You have unlimited attempts/There is no attempt penalty 04 Question (2 points) Q See page 252 The physical and chemical properties of a molecule depend on its structure. Here are two ball-and-stick models for two compounds that have the same molecular formula but different structures and different chemical properties. Ethanol Dimethyl ether 3rd attempt Part 1 (1point) See Periodic Table See Hint Using the models. which of the following is true? 0...
Question 11 0.3125 / 0.5 points Consider these two constitutional isomers: CH3OCH3 and CH3CH2OH. Both of them are made of the same type and same number of atoms (C2H60), but the atoms are arranged differently. Associate the following statements to a pure sample of one or both of these compounds. A pure sample containing this kind of chemical species has a boiling point of +75 °C. This chemical species contains an alcohol functional __2_- group. This chemical species contains an...
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