Both HBr(g) and Kr(g) have similar molar masses (81 g/mol and 84 g/mol, respectively). Their boiling...
Both HBr(g) and Kr(g) have similar molar masses (81 g/mol and 84 g/mol, respectively). Their boiling points, however, are very different.
a) Which intermolecular force would be expected to have the same strength in these two chemicals?
b) Why are the boiling points so different?
c) Which chemical do you expect to have the higher boiling point?
Homework Answers
a)
Since molar mass is same for both, London dispersion forces would be same for both
Answer: London dispersion
b)
HBr is polar and hence it has stronger dipole-dipole forces whereas Kr only has London dispersion forces.
Thats why boiling point of HBr is greater
C)
HBr
Add Answer to:
Both HBr(g) and Kr(g) have similar molar masses (81 g/mol and 84
g/mol, respectively). Their boiling...
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...
CHEM 110 Online Lab Instructions for Exp 6 Molar Masses as Conversion Factors Part 1: The...
CHEM 110 Online Lab Instructions for Exp 6 Molar Masses as Conversion Factors Part 1: The Chemical Reaction LET'S WATCH THE BALLOON INFLATE Let us do a simple "chemical reaction and see what happens when these two common household chemicals are put together: vinegar (HC,H,O2 -aqueous acetic acid solution) and baking soda (NaHCO, --sodium bicarbonate). Vinegar is a solution of acetic acid and water. Vinegar is used in salad dressings, to dye eggs, and in other cooking uses. Baking soda...
A 13. (a) Which would have the stronger intermolecular force, CHA or Cla? Briefly explain your...
A 13. (a) Which would have the stronger intermolecular force, CHA or Cla? Briefly explain your answer. V (b) CHa boils at 111 k while Cola boils at 350 K. Does this data support or contradict your answer to part (a)? Briefly explain eng point 14. Why does ethane (CH) have a higher boiling point (184 K) than methane (CH 111 K)? 163 Model III: Another set of boiling point data Substance Boiling point Boiling point HF Substance HO H...
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...
i have no clue what amino acid this unknown is . maybe serine ?? pleade help!...
i have no clue what amino acid this unknown is . maybe serine
?? pleade help! i also need to locate the eq points it can be from
1-3 points but atleasy 2 , the pka2 location , and the expermental
molecular weight value. if you can label it on one of the graphs (
they are the same) the chocies are below ( it most likely will not
be glycine ) .
other data:
unknown weight obtained was =...
1. Some solids can be converted directly to the vapor phase by heating. The process is...
1. Some solids can be converted directly to the vapor phase by heating. The process is called: a) Fusion b) sublimation c) vaporization d) condensation e) distillation 2. Which one of the following substances is INCORRECTLY matched with the kind of solid it forms? Substance Kind of Solid a) Sulfur dioxide molecular b) Graphite covalent c) Calcium bromide ionic d) Lithium ionic e) Methane molecular 3. Arrange the following in order of increasing melting points: KCl, He, H2O, HF. a)...
will work with up to 3 partners (similar to a lab group) to prepare a written report which analyzes kinetic data that has been provided to you. All student groups will receive data for the hy...
will work with up to 3 partners (similar to a lab group) to prepare a written report which analyzes kinetic data that has been provided to you. All student groups will receive data for the hypothetical reaction aAlE) products where a is a numeric variable and A is a chemical variable. The reaction therefore has the form of a decomposition reaction, in which a single substance forms one or more new substances. For consistency, all concentrations start out at 1.000...
Bottom pictures are 7.7 for context 7.4 Repeat the calculation of Section 7.7 for the empty...
Bottom pictures are 7.7 for context
7.4 Repeat the calculation of Section 7.7 for the empty lattice but for the foc case and the [111] direction. 7.7 The Empty Lattice and Simple Metals We again use our imaginary powers to control the strength of the potential. We assume a finite potential to define the lattice and then decrease it to an insignificantly low value so that the electrons become free. This is the empty lattice: it is a 'ghost' lattice,...
What are the instruments that have been utilized for the review article discussions? ` 1. Introduction...
What are the instruments that have been utilized for the
review article discussions?
`
1. Introduction In recent years, nanoclays have been the object of particular interest for many scientists and researchers in chemistry, physics, engineering and biology due to their excellent properties as well as their sustain- ability [1-3]. For instance, they represent the starting point to the de velopment of smart materials for drug delivery (4-9), food packaging [10-12), environmental remediation and wastewater treatment [13], cultural heritage [14–17and...
What happened on United flight 3411?What service expectations do customers have of airlines such ...
What happened on United flight 3411?What service expectations
do customers have of airlines such as United and How did these
expectations develop over time?
Thank You!
In early April 2017, United Airlines (United), one of the largest airlines in the world, found itself yet again in the middle of a service disaster this time for forcibly dragging a passenger off an overbooked flight. The incident was to become a wake-up call for United, forcing it to ask itself what 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...
CHEM 110 Online Lab Instructions for Exp 6 Molar Masses as Conversion Factors Part 1: The Chemical Reaction LET'S WATCH THE BALLOON INFLATE Let us do a simple "chemical reaction and see what happens when these two common household chemicals are put together: vinegar (HC,H,O2 -aqueous acetic acid solution) and baking soda (NaHCO, --sodium bicarbonate). Vinegar is a solution of acetic acid and water. Vinegar is used in salad dressings, to dye eggs, and in other cooking uses. Baking soda...
A 13. (a) Which would have the stronger intermolecular force, CHA or Cla? Briefly explain your answer. V (b) CHa boils at 111 k while Cola boils at 350 K. Does this data support or contradict your answer to part (a)? Briefly explain eng point 14. Why does ethane (CH) have a higher boiling point (184 K) than methane (CH 111 K)? 163 Model III: Another set of boiling point data Substance Boiling point Boiling point HF Substance HO H...
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...
i have no clue what amino acid this unknown is . maybe serine
?? pleade help! i also need to locate the eq points it can be from
1-3 points but atleasy 2 , the pka2 location , and the expermental
molecular weight value. if you can label it on one of the graphs (
they are the same) the chocies are below ( it most likely will not
be glycine ) .
other data:
unknown weight obtained was =...
1. Some solids can be converted directly to the vapor phase by heating. The process is called: a) Fusion b) sublimation c) vaporization d) condensation e) distillation 2. Which one of the following substances is INCORRECTLY matched with the kind of solid it forms? Substance Kind of Solid a) Sulfur dioxide molecular b) Graphite covalent c) Calcium bromide ionic d) Lithium ionic e) Methane molecular 3. Arrange the following in order of increasing melting points: KCl, He, H2O, HF. a)...
will work with up to 3 partners (similar to a lab group) to prepare a written report which analyzes kinetic data that has been provided to you. All student groups will receive data for the hypothetical reaction aAlE) products where a is a numeric variable and A is a chemical variable. The reaction therefore has the form of a decomposition reaction, in which a single substance forms one or more new substances. For consistency, all concentrations start out at 1.000...
Bottom pictures are 7.7 for context
7.4 Repeat the calculation of Section 7.7 for the empty lattice but for the foc case and the [111] direction. 7.7 The Empty Lattice and Simple Metals We again use our imaginary powers to control the strength of the potential. We assume a finite potential to define the lattice and then decrease it to an insignificantly low value so that the electrons become free. This is the empty lattice: it is a 'ghost' lattice,...
What are the instruments that have been utilized for the
review article discussions?
`
1. Introduction In recent years, nanoclays have been the object of particular interest for many scientists and researchers in chemistry, physics, engineering and biology due to their excellent properties as well as their sustain- ability [1-3]. For instance, they represent the starting point to the de velopment of smart materials for drug delivery (4-9), food packaging [10-12), environmental remediation and wastewater treatment [13], cultural heritage [14–17and...
What happened on United flight 3411?What service expectations
do customers have of airlines such as United and How did these
expectations develop over time?
Thank You!
In early April 2017, United Airlines (United), one of the largest airlines in the world, found itself yet again in the middle of a service disaster this time for forcibly dragging a passenger off an overbooked flight. The incident was to become a wake-up call for United, forcing it to ask itself what to...
Most questions answered within 3 hours.
-
Given the reaction where 1.00 mol H2(g) is burned in excess
O2(g) at 25 °C,
H2(g)...
asked 3 minutes ago -
Suppose you wanted to make a buffer with pH 3.00. What chemicals
would you grab off...
asked 9 minutes ago -
Many celebrities and public figures have Twitter accounts with
large numbers of followers. However, some of...
asked 11 minutes ago -
Elemental phosphorus is produced by the reaction, 2Ca3(PO4)2
+6SiO2 +10C→6CaSiO3 +10CO+P4 Suppose that you have 7.00...
asked 10 minutes ago -
A nationwide survey found that 64% of people in the
Kingdom like Berger. If 3 people...
asked 23 minutes ago -
CYTOGENETIC MAPS VS LINKAGE MAPS
how do you read and extract information from cytogenetic and
linkage...
asked 24 minutes ago -
What volume of a 0.251 M perchloric
acid solution is required to neutralize
14.6 mL of...
asked 24 minutes ago -
Amplitude=3;
fs=8000;
n=0:399;
t=0:1/fs: n*1/fs-1/fs;
signal=3+3*cos(2*pi*1100*t)+3*cos(2*pi*2200*t)+3*cos(2*pi*3300*t);
fftSignal= fft(signal);
fftSignal=f ftshift (fftSignal);
f=fs/2*linspace(-1,1,fs);
plot(f,abs(fftsignal);
xlabel('Frequency(Hz)’)
yla
asked 25 minutes ago -
Write a method called removeDuplicates that
accepts a PriorityQueue of integers as a parameter
and modifies...
asked 27 minutes ago -
What is the wavelength, in cm, of a microwave having a frequency
of 3.44 x 10^9...
asked 45 minutes ago -
A new business venture must develop a comprehensive business
plan to borrow money to get started....
asked 47 minutes ago -
Madtack Company uses a job-order costing system and started the month
of March with only one...
asked 49 minutes ago