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Heat of Vaporization and Intermolecular Forces Pre-Lab Section Number Date: PRE-LAB QUESTIONS Show all work for...
In class work. Help? Date Lab Partner EXPERIMENT 12 Intermolecular Forces substance | tmax (°C) |...
In class work. Help?
Date Lab Partner EXPERIMENT 12 Intermolecular Forces substance | tmax (°C) | tmin (°C) ?T (tmax-tmin) Ethanol l-propanol Predicted Explanation I-butanol npentane Methanol n-hexane The molecular weights for n-pentane and 1-butanol are similar but the liquids have significantly different ?? values. Explain why the values are different I. 2. Which of the alcohols studied has the strongest intermolecular forces of attraction? Explain
Experimen Name Date Pre-Laboratory Questions: 1. Complete the following table, which lists the substances used in...
Experimen Name Date Pre-Laboratory Questions: 1. Complete the following table, which lists the substances used in the experiment. Substance Formula Structural Formula Molar mass All Intermolecular Forces methanol Сньон 3204. god ethanol C.HOH 1-propanol CH OH 2.propanol CsH OH 1-butanol синьон HIT acetone CsHO 2-butanone Сано n-pentane CsHua H H n-hexane C6H14 141
Prior to doing the experiment, Procedure section). The name and formula are given for each compound....
Prior to doing the experiment, Procedure section). The name and formula are given for each compound. Draw the structure for each compound showing ALL bo type possi the complete a table like the one below in your notebook (Include at the end of the nds. Next, examine each molecule for the presence of intermolecular forces, including the strongest ible for covalent molecules-hydrogen bonding. Leave room in your notebook to show all work, determination of polar or nonpolar bonds using electronegativity...
LAB 2A SEPARATION OF LIQUIDS BY SIMPLE DISTILLATION ANALYSIS BY GAS CHROMATOGRAPHY LAB 2A Pre-Lab Questions...
LAB 2A SEPARATION OF LIQUIDS BY SIMPLE DISTILLATION ANALYSIS BY GAS CHROMATOGRAPHY LAB 2A Pre-Lab Questions NAME DATE LAB SECTION Answer the following questions in the pre-lab section of your notebook. 1. Which compound, acetone or 1-propanol, has the higher boiling point? Why? 2. Do you expect acetone to be soluble in 1-propanol? Why or why not? Model: For this question, you will be graded on completion, rather than correctness of the model. In the post-lab, you will be asked...
Liquid Molar Mass (g/mol) Polarity (P, NP) Strongest type of Intermolecular Force Molecular structure Methanol Po...
Liquid Molar Mass (g/mol) Polarity (P, NP) Strongest type of Intermolecular Force Molecular structure Methanol Polar hydrogen bonds Ethanol Ipolar 1-Propanol polar 11-Butanol Ipolar n-Hexane Inon- polar n-Heptane Inon- I polar n-octane non- polar Acetone Polar 2- propanol polar 1. Which liquid tested has the strongest intermolecular forces? Justify your answer. (pt) Table 2 (15pes total) Minimum AT Initial Liquid temperature (°C) Methanol 17.8°C Ethanol 20+C |- Propanol 19.5°C 1-Butanol 19.8°C In-Hexane 18.4°C n-Heptane 20.7°C In-octane 19.4°C | Acetone 20.1.0...
: Synthesis of Nylon (Polyamide) ~ Pre-Lab Assignment Section #- Score - Nylon 6-6 is a...
: Synthesis of Nylon (Polyamide) ~ Pre-Lab Assignment Section #- Score - Nylon 6-6 is a condensation polymer. The last two lab handouts pointed out that "condensation reactions are extremely common among a variety of organic functional groups Pick two appropriate functional groups (your choice) and draw structures to show the condensation reaction between them. Identify the functional growps that are reacting, as well as the linkage formed by the condensation. 2. Rather than use a carboxylic acid for the...
i neds help with all the question 1. Indicate which is the strongest intermolecular force between...
i neds help with all the question
1. Indicate which is the strongest intermolecular force between each of the two molecules below: a. H2S and H2O b. C4H10 (butane) and (CH3)2CO (acetone) 2. Considering properties of liquids: a. Surface tension is proportional to the magnitude of intermolecular forces and/or attractive forces among the molecules in the liquid. With this perspective in mind, which in the following pair of liquids would have the highest surface tension: H2O or CHCl3 (chloroform) b....
INTERMOLECULAR FORCES INTRODUCTION LEARNING OBJECTIVES To relate the effecet of intermolecular fo...
INTERMOLECULAR FORCES INTRODUCTION LEARNING OBJECTIVES To relate the effecet of intermolecular forces on relative melting points and vapour pressures of some organic substances THEORY Weak attractive forces that occur between individual molecules in substances are called intermolecular forces. These include London dispersion forces, dipole-dipole forces and hydrogen-bonding forces. Collectively, the three types of intermolecular forces are referred to as Van der Waals forces. These attractive forces are much weaker than the chemical bonds between atoms in a molecule. Note that...
Lab #22; Intermolecular Forces Pre-Laboratory Questions Name: 1. Read about intermolecular forces in your textbook, pages...
Lab #22; Intermolecular Forces Pre-Laboratory Questions Name: 1. Read about intermolecular forces in your textbook, pages 467-472 Construct a table comparing the following intermolecular forces: dipole- dipole interactions, hydrogen bonds and London Forces. Force 5Do oe 6 nd then bout 2. Read example 11.10 on page 470 in your textbook. Then do problem 11.89 on page 484. But instead of just answering "yes" for the molecules 7 Ob that can hydrogen bond, draw each molecule twice and show the hydrogen...
Chemistry 2 help with lab questions! Intermolecular forces are not chemical bonds. Explain the difference. When...
Chemistry 2 help with lab questions! Intermolecular forces are not chemical bonds. Explain the difference. When answering the rest of the essay questions, use language that clearly distinguishes between chemical bonds and intermolecular forces. Why do compounds with higher intermolecular forces have higher boiling points? Show that you understand why a higher temperature is needed to boil a compound that has stronger intermolecular forces. Which has greater dispersion forces, hexane or pentane? How can you use their molecular formulas to...
In class work. Help?
Date Lab Partner EXPERIMENT 12 Intermolecular Forces substance | tmax (°C) | tmin (°C) ?T (tmax-tmin) Ethanol l-propanol Predicted Explanation I-butanol npentane Methanol n-hexane The molecular weights for n-pentane and 1-butanol are similar but the liquids have significantly different ?? values. Explain why the values are different I. 2. Which of the alcohols studied has the strongest intermolecular forces of attraction? Explain
Experimen Name Date Pre-Laboratory Questions: 1. Complete the following table, which lists the substances used in the experiment. Substance Formula Structural Formula Molar mass All Intermolecular Forces methanol Сньон 3204. god ethanol C.HOH 1-propanol CH OH 2.propanol CsH OH 1-butanol синьон HIT acetone CsHO 2-butanone Сано n-pentane CsHua H H n-hexane C6H14 141
Prior to doing the experiment, Procedure section). The name and formula are given for each compound. Draw the structure for each compound showing ALL bo type possi the complete a table like the one below in your notebook (Include at the end of the nds. Next, examine each molecule for the presence of intermolecular forces, including the strongest ible for covalent molecules-hydrogen bonding. Leave room in your notebook to show all work, determination of polar or nonpolar bonds using electronegativity...
LAB 2A SEPARATION OF LIQUIDS BY SIMPLE DISTILLATION ANALYSIS BY GAS CHROMATOGRAPHY LAB 2A Pre-Lab Questions NAME DATE LAB SECTION Answer the following questions in the pre-lab section of your notebook. 1. Which compound, acetone or 1-propanol, has the higher boiling point? Why? 2. Do you expect acetone to be soluble in 1-propanol? Why or why not? Model: For this question, you will be graded on completion, rather than correctness of the model. In the post-lab, you will be asked...
Liquid Molar Mass (g/mol) Polarity (P, NP) Strongest type of Intermolecular Force Molecular structure Methanol Polar hydrogen bonds Ethanol Ipolar 1-Propanol polar 11-Butanol Ipolar n-Hexane Inon- polar n-Heptane Inon- I polar n-octane non- polar Acetone Polar 2- propanol polar 1. Which liquid tested has the strongest intermolecular forces? Justify your answer. (pt) Table 2 (15pes total) Minimum AT Initial Liquid temperature (°C) Methanol 17.8°C Ethanol 20+C |- Propanol 19.5°C 1-Butanol 19.8°C In-Hexane 18.4°C n-Heptane 20.7°C In-octane 19.4°C | Acetone 20.1.0...
: Synthesis of Nylon (Polyamide) ~ Pre-Lab Assignment Section #- Score - Nylon 6-6 is a condensation polymer. The last two lab handouts pointed out that "condensation reactions are extremely common among a variety of organic functional groups Pick two appropriate functional groups (your choice) and draw structures to show the condensation reaction between them. Identify the functional growps that are reacting, as well as the linkage formed by the condensation. 2. Rather than use a carboxylic acid for the...
i neds help with all the question
1. Indicate which is the strongest intermolecular force between each of the two molecules below: a. H2S and H2O b. C4H10 (butane) and (CH3)2CO (acetone) 2. Considering properties of liquids: a. Surface tension is proportional to the magnitude of intermolecular forces and/or attractive forces among the molecules in the liquid. With this perspective in mind, which in the following pair of liquids would have the highest surface tension: H2O or CHCl3 (chloroform) b....
INTERMOLECULAR FORCES INTRODUCTION LEARNING OBJECTIVES To relate the effecet of intermolecular forces on relative melting points and vapour pressures of some organic substances THEORY Weak attractive forces that occur between individual molecules in substances are called intermolecular forces. These include London dispersion forces, dipole-dipole forces and hydrogen-bonding forces. Collectively, the three types of intermolecular forces are referred to as Van der Waals forces. These attractive forces are much weaker than the chemical bonds between atoms in a molecule. Note that...
Lab #22; Intermolecular Forces Pre-Laboratory Questions Name: 1. Read about intermolecular forces in your textbook, pages 467-472 Construct a table comparing the following intermolecular forces: dipole- dipole interactions, hydrogen bonds and London Forces. Force 5Do oe 6 nd then bout 2. Read example 11.10 on page 470 in your textbook. Then do problem 11.89 on page 484. But instead of just answering "yes" for the molecules 7 Ob that can hydrogen bond, draw each molecule twice and show the hydrogen...
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