The difference between ideal gases and real gases are most pronounced under conditions of inter molecular forces.
Difference between ideal gases and real gases are discussed below :
Real gases differ from ideal gases thanks to the presence of inter molecular forces, which cause the molecules of a true gas to deviate from perfect random motion.
As a result, real gases deviate from the perfect gas law at high densities and low temperatures, where the results of inter molecular forces are more pronounced.
So, the difference between ideal gases and real gases are most pronounced under conditions of inter molecular forces.
What are inter molecular forces?
The attractive forces that exist between molecules are liable for many of the bulk physical properties exhibited by substances.An inter molecular force (IMF) (or secondary force) is that the force that mediates interaction between molecules, including the electromagnetic forces of attraction or repulsion which act between atoms and other sorts of neighboring particles, e.g. atoms or ions.
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1.1.F - Lesson Review: What is Science Knowledge?
help xnx
Which characteristic feature of the sternum should the nurse observe in a client with the diagnosis of pectus carinatum?
Frontward thrust the sternum of a patient with pectus carinatum protrudes forward, forcing the surrounding ribs to slant backward. In the funnel chest, the sternum and surrounding cartilages are visible. The natural anatomical location of the sternum is in the midline and in a straight posture. Barrell chest is characterized by a horizontal sternum and an elevated intercostal angle.
What is pectus carinatum?
The word "pectus carinatum" is used to describe a variety of aberrant protrusions of the front chest wall. Depending on where the deformity is most prominent, it can be either chondrogladiolar or chondromanubrial. Additionally conceivable are lateral abnormalities.Hippocrates noted that persons with the carinatum deformity experienced "difficulty breathing" and had a "sharply pointed chest."
Patients with symptoms describe breathlessness and a reduction in stamina. Some people have chest wall stiffness, increasing emphysema, reduced lung compliance, and more respiratory tract infections.
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09/22/2022
You probably use the term heat many times a day. As an example, when you cook, dinner, you heat your dinner on a hot stove. When you place a piece of cool metal in the sun, it is heated by the sun’s energy. Why is heat the correct term to use in these examples?
When you place a piece of cool metal in the sun, it is heated by the sun’s energy they show that heat flows from warmer to cooler
In the given example conduction concept are seen conduction means conduction is the transfer of heat energy from one substance to another or within a substance in which heat is transferred via conduction and when heat energy is converted through piece of metal then the substance itself does not flow and heat is transferred internally, by vibrations of atoms and molecules and electrons can also carry heat, which is the reason metals are generally very good conductors of heat
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Help please !!
Fast!!
Step 1 convert lbs to kg step 2 kg to g 3rd step g to mg
Here given data is 0.47 pound then we have to convert how many miligram = ?
So here 0.47 pound (lbs) = 0.2131 kg
1 kg = how many gram then 1kg = 1000 gram
So, 0.2131 kg = 213.1 gram
So 1 gram = 1000 mg then
So, 213.1 gram = 0.2131 mg
Then here three conversion are seen means step 1 =0.47 pound (lbs) = 0.2131 kg to step 2 = 2131 kg = 213.1 gram to step 3 = 213.1 gram = 0.2131 mg
This is the conversion from beginning to ending
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What would be considered as a homogeneous among the the following mixtures?
emulsion
pizza
salad
soda
A 21.0 -cm -long cylindrical glass tube sealed at one end is filled with ethanol the mass of ethanol needed to fill the tube is found to be 44.23 g the density of ethanol is 0.789 g/ml calculate the inner diameter of the tube in centimeters
1.843 cm is the inner diameter of a 21.0 cm long cylindrical glass tube.
What is inner diameter of a cylinder?
Two times the wall thickness of the pipe is subtracted from the total exterior diameter to determine the inner diameter of the pipe. By removing the pipe's walls from the computation, just the internal diameter remains.
Lets volume of tube be V
V = 44.23/0.789
calculate by using conversion factor= 56.058 cm^3
Volume of cylinder = πr^2h
⇒ r^2= [tex]\frac{V}{\pi h}[/tex] ,
⇒ r = [tex]\sqrt{\frac{V}{\pi h}}[/tex]
⇒ r = [tex]\sqrt{\frac{56.058 }{\pi 21}}[/tex]
⇒ r = 0.9215 cm
And as we have radius, we can calculate diameter
d = 2r = 2 × 0.9215 cm = 1.843 cm
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10. Stephen is worried he has a fever. His dad is a scientist though, and only has a thermometer
that measures in Kelvin, and it measures Stephen's temperature to be 312 Kelvin. If Stephen's
temperature is above 100°F, he isn't allowed to go to school. Can Stephen go to school today?
As the elevator (lift) moves to the top of the ramp, the skier's potential energy _________ .
As the elevator (lift) moves to the top of the ramp, the skier's potential energy increasing .
What is potential energy?Potential energy is a form of stored energy that is dependent on the relationship between different system components. A spring has more potential energy when it is crushed or stretched.
A steel ball has far more potential energy raised above the ground than has after falling to Earth. In the raised position it is capable of doing more work.
Potential energy is a characteristic of systems rather than of particular bodies or particles; for instance, the system made up of Earth and the raised ball has more potential energy as they become further apart.
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46 pints = ? gallons
A chemist measures the amount of mercury in sediment samples from three areas of a river (the source, the midway point, and the
mouth).
Which is the most reasonable hypothesis for the chemist's experiment?
If a chemical plant near the source of the river is dumping mercury, then the mercury levels should be highest at the mouth
and lowest at the source.
If a chemical plant near the source of the river is dumping mercury, then the mercury levels should be highest at the mouth
and lowest at the midway point.
If a chemical plant near the source of the river is dumping mercury, then the mercury levels should be the same all along
the river.
If a chemical plant near the source of the river is dumping mercury, then the mercury levels should be highest at the
source and lowest at the mouth.
If a chemical plant near the source of the river is dumping mercury, then the mercury levels should be highest at the source and lowest at the mouth.
Further testing should show that this is a commonly followed rule. Observations should be explained in a published scientific paper. Scientists look for answers to questions and solutions to problems using a process called the scientific method. This process consists of observation, hypothesis development, and experimental design. Bringing additional observations hypotheses, and experiments in repeated cycles
Chemists use the scientific method to conduct experiments formulate hypotheses formulate laws, and develop theories to better understand how the natural world behaves. In scientific thinking, hypotheses are formed before applicable research is conducted. The theory, on the other hand, is supported by evidence. This is a principle formulated as an attempt to explain what the data already support.
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Instead rudy consumes 500 ml of orange juice (ph 3.3), who has consumed more hydrogen ions?
Rudy consumes 2.5 ×[tex]10^{-4}[/tex] moles hydrogen ions.
What are ions?
A negatively charged ion called an anion has more electrons than protons compared to a positively charged ion called a cation. The electrostatic force causes opposite electric charges to be drawn towards one another, causing cations and anions to attract one another and easily form ionic compounds.
Atomic or monatomic ions are those made up of just one atom, whereas molecular or polyatomic ions are those made up of two or more atoms. Physical ionization occurs when molecules spontaneously collide in a fluid (gas or liquid), producing "ion pairs" that each contains a free electron and a positive ion. Chemical reactions, such as the dissolution of a salt in liquids, can also produce ions.
Rady consumes 500 ml of organic juice of [tex]p^{H}[/tex]
3.3
[tex]p^{H}[/tex] = 33
- log [[tex]H^{+}[/tex]] = 3.3
[[tex]H^{+}[/tex]] = [tex]10^{-3.3}[/tex]
[[tex]H^{+}[/tex]] = 5.01 x [tex]10^{-4}[/tex] M
Volume of organic juice = 500ml = 0.5L
Mole of [tex]H^{+}[/tex] ions = 2.5 ×[tex]10^{-4}[/tex] moles
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A chemist tests the quality of a brand of soft drink. which branch of chemistry might the chemist use?
A chemist tests the quality of a brand of soft drink. The branch of chemistry he might use out of Analytical chemistry, physical chemistry, biochemistry, organic chemistry, and inorganic chemistry is analytical chemistry.
What are the branches of chemistry?
Analytical chemistry, physical chemistry, biochemistry, organic chemistry, and inorganic chemistry are thought to constitute the five main branches. The study of compounds of carbon and itself is called organic chemistry. The study of substances not included in organic chemistry is known as inorganic chemistry. The study of matter's chemistry and the creation of instruments to quantify matter's properties are both aspects of analytical chemistry. The field of chemistry known as "physical chemistry" uses physics to the study of chemical reactions. This often involves using thermodynamics and quantum mechanics to research chemistry. The study of chemical reactions that take place within living things is known as biochemistry.
Thus, the branch of chemistry a chemist uses to test the quality of a brand of soft drink is analytical chemistry.
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How would you prepare 10. 0 ml of a 0. 25% m/v hcl solution if 1% m/v hcl was available? how much 1% m/v hcl is needed? how much distilled water is used?.
7.5ml distilled water is used to 0. 0 ml of a 0. 25% m/v hcl solution if 1% m/v hcl was available
Here so 2.5 ml of 1% m/v HCl and (10 - 2.5) = 7.5 ml distilled water taken to prepare 10 mL of a 0.25% m/v HCl solution. 2.5 mL of 1 % m/v HCl is needed. 7.5 ml of distilled water is used to make 10ml solution and in that solution 1% hcl means 3.6 hcl is needed. mass of hcl is 36g/mol
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A proton is moving at a speed of 0.30 mm s-1. if the uncertainty in its momentum is to be reduced to 0.0400 per cent, what will be the uncertainty in its position in nanometers?
Response: 26.3 nm
A proton is moving at a speed of 0.30 mm s-1.
if the uncertainty in its momentum is to be reduced to 0.0400 per cent
0.04% of 0.3 Mms-1 = delta v.
= 1.2*10^-4 Mm/s
= 1.2*10^-4*10^6 m/s
delta v= 120 m/s
delta x *m*delta v=h/4pi
delta x*(1.67*10^-27)*120 = 6.626*10^-34/ 4pi
delta x = 2.63 *10^-10
delta x = 26.3 nm
if the uncertainty in its momentum is to be reduced to 0.0400 per cent, 26.3 nm will be the uncertainty.
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1 Samples of four gases are released in a room at the same time.
The gases are carbon dioxide, CO₂, hydrogen chloride, HCl, hydrogen sulfide, H₂S, and nitroge
dioxide, NO₂.
Which gas diffuses fastest?
Answer:
H2S
Explanation:
The gas with the smallest molar mass diffuses the fastest (assuming that the holes are the same size and that gasses act ideally).
Find the molar mass of each of the gasses, and then compare.
CO2 = 12 + 16 + 16 = 32 + 12 = 44
HCl = 35.45 + 1 = 36.45
H2S = 1 + 1 + 32 = 34
NO2 = 14 + 16 + 16 = 32 + 14 = 46
Therefor, H2S diffuses the fastest, then HCl, then CO2, and finally NO2
An oxygen (o) atom has _____ protons, _____ neutrons, and _____ unfilled electron orbitals.
An oxygen (o) atom has 8 protons, 8 neutrons, and 2 unfilled electron orbitals.
What is electron orbitals?The three-dimensional regions surrounding an atom's nucleus known as electron orbitals are where a certain electron can be found. Two electrons can fit into each orbital.
They go by the name of atomic orbitals too. The number of electrons an atom contains determines the form of its atomic orbitals. The s, p, d, and f orbitals will all be covered in this lesson. Their orbital forms will also be revealed to us.
An orbital is a mathematical function that, according to its precise definition, represents the location of an electron in an atom with a high degree of probability. According to the mathematical function for that orbital, the term "atomic orbital" often refers to the area of space where an electron might be present.
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An isotope of sodium (na) has a mass number of 22. how many neutrons does it have?
An isotope of sodium (Na) has a mass number of 22 it have 11 neutrons
Isotopes are members of a family of an element that all have the same number of protons but different numbers of neutrons. protons are the positively charged particles which are present in the nucleus of an atom. a neutron is a subatomic particle found in the nucleus of every atom except that of simple hydrogen. here sodium (Na) has a mass number of 22 so, in that sodium 11 proton are present and 11 neutron are present.
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What is the percent yield of a reaction in which 61.7 g of tungsten(vi) oxide (wo3) reacts with excess hydrogen gas to produce metallic tungsten and 9.45 ml of water (d = 1.00 g/ml)?
The percent yield is 65.76 % .
The reaction mentioned in question is
[tex]WO_3 + 3H_2[/tex] → [tex]W + 3H_2O[/tex]
Molecular mass of 231.8 g
Percent yield is determined by calculating the mass of water that is formed by given mass of tungsten(VI) oxide
61.7g [tex]WO_3[/tex][tex]* 1mol WO_3/231.8g[/tex]
[tex]* 3mol of H_2O/ 1mol of WO_3 *18g/ 1mol of H_2O * 1ml/ 1g[/tex]
= 14.37 ml
Percent yield can be calculated by taking ratio of actual and theoretical yield of water formed = [tex]\frac{9.45}{14.37}[/tex] *100
Percent yield = 65.76 %
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paulo is experimenting with H2O in its different states. He would like to present all the information he collected in one place. He thinks he should use a phase change diagram, but he isn’t sure. What information could you give Paulo to encourage him to use a phase change diagram?
The phase diagram makes it possible to predict the stability of any of the phases of water based on the diagram..
What is a phase diagram?Water is able to exist in three phases; solid, liquid and gas. The reason behind the phases of water is the fact that there are different degrees of intermolecular interactions that exists in the various phases of water.
Thus, on the phase diagram, of is easy to trace the the regions of temperature and pressure that corresponds to the solid, gaseous and liquid states of a given substance that could be used to make deduction about the substance.
The phase diagram shows the interaction between the various phases of water on the same diagram. This makes it possible to predict the stability of any of the phases of water based on the diagram.
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Question 13 (1 point)
How many grams of nitrogen are contained in 70.0 g of C6H5NO3 (MW- = 139.1094 u)?
a) 7.05 g of nitrogen
Ob) 8.11 g of nitrogen
Oc) 7.11 g of nitrogen
d) 8.05 g of nitrogen
2
The mass of nitrogen contained in 70.0 g of C6H5NO3 is 7.05g.
How to calculate mass of an element in a compound?The mass of an element in a compound can be calculated by dividing the molar mass of the element by the molar mass of the compound multiplied by the mass of the compound.
According to this question, 70.0 g of C6H5NO3 is contained in a substance.
Molar mass of nitrogen is 14g/mol
Mass of nitrogen = 14g/mol/139.11g/mol × 70g
mass of nitrogen = 7.05g
Therefore, the mass of nitrogen contained in 70.0 g of C6H5NO3 is 7.05g.
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A person's heartbeat is 80 beats per minute. if his/her heart beats 3.1e9 times in a lifetime, how long (in whole years) does the person live? disregard leap years.
The person will live 73.62 years
The heartbeats 80 times in 1 minute
Therefore , 1 heartbeat takes [tex]1/80 minutes[/tex] time
In whole life number of heartbeats = [tex]3.1* 10^{9}[/tex]
Thus, time in which [tex]3.1* 10^{9}[/tex] heart beat will occur = [tex]3.1* 10^{9} * 1/80 minutes[/tex]
= [tex]0.03875 * 10^{9}[/tex] minutes
Since 1 minutes =[tex]1.90259 * 10^{-6}[/tex] year
Therefore, [tex]0.3875 * 10^{9}[/tex] minutes = [tex]0.03875 * 10^{9}[/tex] * [tex]1.90259 * 10^{-6}[/tex] year
= [tex].073625* 10^3[/tex] years
= 73.62 years
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An object that is stationary is the result of what kind of force(s)?
no forces
unbalanced forces
net forces
balanced forces
It is a result of "balanced forces".
Hope this helps! Also, if you need help with the other questions regarding this assignment, feel free to check out the study set I made on Quizlet. Thanks and good luck!
Quizlet - "Unit 6: Lesson 2 Newton's First Law QC"
h t t p s : / / q u i z l e t. c o m / 7 3 7 7 5 9 5 5 5 / u n i t - 6 - l e s s o n - 2 - n e w t o n s - f i r s t - l a w - f l a s h - c a r d s / ? n e w
According to gravitational momentum, shown under that have balanced forces acting on them prefer to remain that way. According to Newton's first law balanced forces are affect an object that is stationary.
What is newtons first law ?Unless influenced by an imbalanced force, an item at rest stays at rest, and an object in motion keeps moving in a straight path at a constant pace.
An item that is stationary is one that is not shifting or considered the beginning. It is dormant. In such posture, all the forces exerting pressure on it are balanced out or their combined magnitudes are zero.
Based to their inertia, stationary objects which have already balanced forces acting on them prefer to stay that way. When an unbalanced force is operating on a stationary item will it move.
Thus, option D is correct.
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What does it mean for matter to change physically?
Answer:
Its when it transforms into a diffrent product like water to ice.
Explanation:
Potassium nitrate is used for a variety of applications, including fertilizer, rocket fuel, and fireworks. how many molecules of potassium nitrate are in a 25 g sample?
There are 1.5×10^23 molecules molecules of potassium nitrate are in a 25 g sample.
molecules of KNO3 = 25gKNO3 x 1mol/101.11gKNO3 x 6.022x10^23 molecules/1mol = 1.5 x 10^23 molecules.
Molecules are made up of one or more atoms. If they contain more than one atom, the atoms can be the same (an oxygen molecule has two oxygen atoms) or different (a water molecule has two hydrogen atoms and one oxygen atom). Biological molecules, such as proteins and DNA, can be made up of many thousands of atoms.
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What type of ring strain is predominantly responsible for causing cyclooctane to be higher in energy than linear octane?
a. torsional strain
b. transannular strain
c. angle strain
d. isomer strain
Transannular strain predominantly responsible for causing cyclooctane to be higher in energy than linear octane.
Linear octane is a chain like structure in which 8 carbon atom are present and cyclooctane is a cycle like structure in which 8 carbon atom are present. cycloalkanes tend to give off a very high and non-favorable energy, and the spatial orientation of the atoms is called the ring strain in that linear octane there is no ring strain because this is like a chain and in cyclooctane transannular strain is seen because it is cycle like structure the unfavorable interactions of ring substituents on non-adjacent carbons called transannular strain in cyclooctane transannular strain is more that's why energy is higher than linear octane.
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Calculate the moles of ammonia present in a 3.939 g sample of ammonia, which has a molar mass of 17.030 g/mol.
The moles of ammonia present in a 3.939 g sample having molar mass of 17.030 g/mol is 0.23 mole.
The mass of one mole of a substance, whether be an element or a compound is known as the molar mass.
If the molar mass of ammonia is 17.030 g/mol, then
In 1 mole of ammonia there are 17.030 g.
So, by definition of molar mass, there are-
17.030 g in 1 mole of ammonia,
In 3.939 g of ammonia, number of moles are -
number of moles = Given mass
Molar mass
moles = 3.939 g = 0.23 mol
17.030 g/mol
The moles of ammonia present in a 3.939 g sample are 0.23 mol.
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An element with the electron configuration 1s22s22p63s23p6 has how many electrons?
An element with the electronic configuration [tex]1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6}[/tex] has Eighteen electrons.
The electronic configuration [tex]1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6}[/tex] is of a Argon. The Atomic number of argon is eighteen. It is represented by the symbol Ar. It belongs to Group 18 and period number 3 of the periodic table. Argon belongs to the family of noble gases. It is a p-block element. The atomic mass of Argon is 39.948 u.
The number of electrons in an element is equal to the atomic number of the element. As the given electronic configuration is of atomic number eighteen , so the total number of electrons in it is also Eighteen.
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What are hydrocarbons?
Answer:
a compound of hydrogen and carbon, such as any of those which are the chief components of petroleum and natural gas.
"the rain is rich in benzene and hydrocarbons"
Answer: a compound of hydrogen and carbon, such as any of those which are the chief components of petroleum and natural gas.
Explanation:
in organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon. Hydrocarbons are examples of group 14 hydrides. Hydrocarbons are generally colorless and hydrophobic, and their odors are usually weak or exemplified by the odors of gasoline and lighter fluid.
What distance in kilometers can you drive if your car gets 14.00 kilometers per liter and you have 35.00 liters of gas?
2.5 km is the distance you can travel if a car gets 14 kilometers per liter and have 35 liters of gas.
Total distance traveled in 1 liter = 14 km
Total gas in the car = 35 liters
We have to find how much distance can be covered in in35 liters of gas.
Distance is the length of the path traveled between two points. It is the total movement of an object in a direction. It measures length.
Distance = 35/14
Or, distance = 2.5 km
Therefore, the total distance that can be covered by a car in 35 liters of gas is 2.5 km.
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A block pf wood is 5 long, 4cm wide and 10cm high it weighs 100 grams calculate the density
Volume = 5x3x10 = 150 cm cubed
Mass = 150x100 = 15000 grams
Density = 15000/150 = 100g/cm cubed