Answer:
2.23L
Explanation:
Using the general gas law as follows:
PV = nRT
Where;
P = pressure (atm)
V = volume (L)
n = number of moles (mol)
R = gas constant (0.0821 Latm/molK)
T = temperature (K)
According to the information provided in this question,
Mass of nitrogen = 2800mg
Since 1g = 1000mg
2800mg = 2800/1000
= 2.8g
Using mole = mass ÷ molar mass
Molar mass of nitrogen gas (N2) = 28g/mol
mole = 2.8/28
mole of N2 gas = 0.1mol
Pressure = 98kPa
1 kilopascal (kPa) = 1000pascal (pa)
98kPa = 98 × 1000
= 98000pascal
Since 1 Pascal = 9.869 × 10^-6 atmosphere (atm)
98000pascal = 98000 × 9.869 × 10^-6
= 0.967atm
Temperature = -10°C
Kelvin = °C + 273
Kelvin = -10 + 273
K = 263K
Hence, using PV = nRT
0.967 × V = 0.1 × 0.0821 × 263
0.967V = 2.159
V = 2.159/0.967
V = 2.23
Volume of Nitrogen gas = 2.23 L
Most meteors that fall into the Earth's atmosphere burn up before reaching
the ground. Why is this?
The number of protons that an atoms has:
There are 122.6L of argon gas in a tank. How many moles is this?
A)
2.76mols
B)
3.25mols
09
1.56mols
D)
5.5mols
There are 5.5 moles of Argon gas in tank
Further explanationGiven
122.6 liters of Argon gas
Required
The number of moles
Solution
Assume at STP
Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure). At STP, Vm is 22.4 liters / mol.
So for 122.6 L :
= 122.6 L : 22.4 L
= 5.47 moles ≈ 5.5 moles
please help !! ill mark Brainliest, at least explain how. :(
Answer:
473g
Explanation:
25 + 8(56) = 473
Identify a human activity that impacts the land negativaly. Then describe a positive action that can help reduce the effects caused by the activity
Answer:
Pollution
•The number of trips one takes in a car should be reduced.
•Reduce or eliminate fireplace and wood stove use.
•Burning leaves, trash, and other materials should be avoided.
•Using gas-powered lawn and garden equipment should also be avoided.
In an ecosystem, pollution is a human activity that impacts the land negatively.Minimum use of vehicles and emission of smoke can help reduce the effects caused by the activity.
What is an ecosystem?An ecosystem is defined as a system which comprises of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through means of nutrient cycles and flow of energy.
Energy enters the ecosystem through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the ecosystem .Living organisms also influence the quantity of biomass which is present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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1.) The following is a close view of particle movements. Which state of
matter are you viewing?"
Answer: Gas
Explanation:
Gas. The arrows represent direction. They are moving around in the box extremely fast, and are not compact like a solid or liquid.
Hydrogen atoms fuse together to form helium atoms. This releases a huge amount of energy in the form of _______ and ______. (called Nuclear fusion)
Answer:
Hydrogen atoms fuse together to form helium atoms. This releases a huge amount of energy in the form of Kinetic energy of the alpha particle and Electromagnetic radiation.
Explanation:
Nuclear Fusion is the Nuclear process in which the energy is produced when two lighter elements are collided together which are having some kinetic energy in them after that the two lighter nuclei will fuse together into a single heavier nuclei. This is opposite to what happens in Fission process in which the breaking up of atomic specie happens.
Both Nuclear Fission and Nuclear fission occurs with the release of massive amount of energy.
There are conditions for nuclear fusion to happens like, it requires 100 million's kelvin of temperature, also fusion will occur when the pressure is very high because increased pressure will result into squeezing of the atomic specie and hence they will fuse.
When the Hydrogen atom fuse together to form helium atoms. This release a huge amount of energy in the form of Kinetic energy of the alpha particle and Electromagnetic radiation.
Calculate the number of moles of NaOH that are needed to react with 500.0 g of
H2SO4 according to the following equation:
H2SO4 + 2NaOH →
Na2SO4 + 2H2O
Answer:
2.55 moles of NaOH are needed react with 500.0 gram of H₂SO₄.
Explanation:
Given data:
Mass of H₂SO₄ = 500.0 g
Number of moles of NaOH needed = ?
Solution:
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
Number of moles of H₂SO₄:
Number of moles = mass/molar mass
Number of moles = 500.0 g/ 98.07 g/mol
Number of moles = 5.09 mol
Now we will compare the moles of H₂SO₄ and NaOH.
H₂SO₄ : NaOH
1 : 2
5.09 : 1/2×5.09 = 2.55 mol
Thus, 2.55 moles of NaOH are needed react with 500.0 gram of H₂SO₄.
The number of mole of NaOH required to react with 500 g of H₂SO₄ is 10.2 moles
We'll begin by calculating the number of mole of in 500 g of H₂SO₄
Mass of H₂SO₄ = 500 gMolar mass of H₂SO₄ = (2×1) + 32 + (16×4) = 98 g/mol Mole of H₂SO₄ =?Mole = mass / molar mass
Mole of H₂SO₄ = 500 / 98
Mole of H₂SO₄ = 5.1 moles
Finally, we shall determine the mole of NaOH required for the reaction.
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
From the balanced equation above,
1 mole of H₂SO₄ required 2 moles of NaOH.
Therefore,
5.1 moles of H₂SO₄ will require = 5.1 × 2 = 10.2 moles of NaOH
Thus, 10.2 moles of NaOH is required for the reaction
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wich atom contains exactly 15 protons
Answer:
phosphorus
Explanation:
15 is the atomic number, so you know phosphorus has 15 protons.
how many particles are in 4.50 moles of carbon?
Where does fission regularly occur and what kind of energy is produced?
1:When wood burns, fission occurs. The energy produced is light and heat.
2:Fission occurs in a nuclear power plant. The energy produced comes in the form of heat.
3:Fission occurs when fossil fuels are burned. The energy can be used to produce electricity.
4:Fission occurs inside the sun. It creates the light and heat that sustain life on Earth.
Answer:
2:Fission occurs in a nuclear power plant. The energy produced comes in the form of heat.
Explanation:
Nuclear fission regularly occurs in nuclear power plants. The energy produced is in form of heat energy which is used for a wide range of purposes.
Nuclear fission is the radioactive decay process in which a heavy nucleus spontaneously disintegrates into 2 lighter ones and several neutrons with the release of a large amount of energy.
This reaction is utilized by nuclear power plants to generate electricity.
Answer:
number 2
Explanation:
Give other person brainly they deserve it.
Benjamin Franklin invented the lightning rod as a way to prevent lightning from causing damage to property or people. Use this same idea to construct a device that can protect a person from static charge buildup in their body as they run on a treadmill. Consider that the person wears rubber-soled shoes that rub on the treadmill's running surface, which generates static charges that build up in their body. When the person finishes her workout, she can receive an unpleasant shock when she steps off the treadmill and touches an object that suddenly discharges all of that charge. How can you apply Ben Franklin's idea of a lightning rod to solve this problem? Create a sketch showing how your shock protection system works. Your sketch should be labeled and clearly indicate how the excess static charge in a human body is discharged by the system you design. 12 f(x) (1000) 1 G
Answer:
By 1750, in addition to wanting to prove that lightning was electricity, Franklin began to think about protecting people, buildings, and other structures from lightning. This grew into his idea for the lightning rod. Franklin described an iron rod about 8 or 10 feet long that was sharpened to a point at the end.
Explanation:
meaning made of rock. All are solid, dense, ond rocky
O Jupiter
O Terrestrial Planets
Gaseous Planets
Outer Planets
Answer:
Terrestrial Planets
Explanation:
Terrestrial planets are made up of rocks. They are all solid, dense and rocky in nature.
There are four known terrestrial planets which are Mercury, Venus, Earth and Mars.
These planets are orbits round the Sun in an elliptical orbital.
The other planets in the solar system are the gaseous planets. They are otherwise called gas giants.They are predominantly made up of gases. They are Jupiter, Saturn, Uranus and NeptuneThe Gas giants are also called outer planets.How do the two desalination processes differ from the atmospheric water generator in terms of where the processes can be used?
Answer:
Water Desalination Processes. Water desalination processes separate dissolved salts and other minerals from water. Feedwater sources may include brackish, seawater, wells, surface (rivers and streams), wastewater, and industrial feed and process waters. Membrane separation requires driving forces including pressure (applied and vapor)
Explanation:
Salinized water cannot be consumed by humans, but it can be converted into freshwater, which has a variety of purposes. Desalination is the procedure, and it is being employed increasingly frequently all over the world to supply people with the freshwater they require.
What is desalination process?Desalination is the procedure used to remove the dissolved mineral salts from water. Currently, one of the most popular methods for obtaining fresh water for use in agriculture or human consumption when applied to seawater.
When seawater evaporation occurs, salt is left behind, and clouds are formed, which eventually result in rain. Da Vinci realised that it was easy to obtain using a still. Aristotle had observed that seawater would evaporate and condense into fresh water.
Seawater desalination was mostly utilised on ships and submarines over the next centuries to supply the crew with fresh water during lengthy voyages. Nevertheless, this method was not widely accessible until the industrial revolution and, more specifically, until the creation of desalination facilities.
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how much salt will be obtained, neutralizing 11.2 grams. potassium hydroxide and hydrochloric acid? In the meantime, there is no need to worry about it. ”
Answer:
9.0217g
Explanation:
the chemical formula must be after balancingknown as 92.55 (mass) of KOH+HCL will produce 74.55 (mass) of salt, KCLhence, 11.2g of KOH and HCL will produce (x)g of saltEnthalpy of reaction described for 3Mg+N2---->Mg3N2?
Oxidation-Reduction Reactions. The term oxidation was originally used to describe reactions in which an element combines with oxygen. Example: The reaction between magnesium metal and oxygen to form magnesium oxide involves the oxidation of magnesium.
Hope I helped :)
If 1 inch = 2.54cm how much cm = 1 foot?
Answer:
30.48 cm equals a foot
Explanation:
Answer:
30.48 cm
Explanation:
Inch is an imperial and United States Customary systems unit of length, equal to 1/12 of a foot.
1 inch = 2.54 cm.
1 ft= 30.48 cm
PLZ help, I'm really behind in school! I will mark brainliest for correct answers!
If the distance between two objects is reduced by a factor of 5, how will Fg be affected?
A. F g decreases to 1/25
B. F g increases by 5 times
C. F g decreases to 1/5
D. F g increases by 25 times
Answer:
Gravitational force is given by:
F=G×
d
2
m×M
Distance between two masses is increased s.t. new distance is D= 5 d
New gravitational force F
1
=F
Let on of the mass is changed to m
1
so as to maintain the same gravitational force.
Answer:
D
Explanation:
F g increases by 25 times
Cytokinins _____.
are naturally produced by plants
are used by Christmas tree growers
are primarily found in roots and fruits
all of the above
Areas near large bodies of water tend to have which type of climate a: moderate b: polar c: dry
Answer:
a
Explanation:
Answer:
a
Explanation:
yo, what's up ( you don't have to answer that ) um I just need at least 2 of these answered if you want to do all 3 that's cool but you just need to do 2 of them.
1. compare the term " ground state " to the energy of an atom and its electron configuration.
2. describe how metallic bonding accounts for the conductive property of metals. discuss both electrical and heat conduction.
3. describe the relationship between intermolecular forces and physical property. What is the cause of the relationship?
Answer:
1. The ground state describes the lowest possible energy that an atom can have. An electron is normally in its ground state, the lowest energy state available.
2. In a metal, atoms readily lose electrons to form positive ions (cations). These ions are surrounded by delocalized electrons, which are responsible for conductivity. The solid produced is held together by electrostatic interactions between the ions and the electron cloud. These interactions are called metallic bonds. The metallic bonding model explains the physical properties of metals. Metals conduct electricity and heat very well because of their free-flowing electrons. As electrons enter one end of a piece of metal, an equal number of electrons flow outward from the other end.
3. Physical properties are affected by the strength of intermolecular forces. Melting, boiling, and freezing points increase as intermolecular forces increase. Vapor pressure decreases as intermolecular forces increase. The physical state and properties of a particular compound depend in large part on the type of chemical bonding it displays. This is because the energy required to disrupt the intermolecular forces between molecules is far less than the energy required to break the ionic bonds in a crystalline ionic compound.
Explanation:
Sorry for late reply. I really hope this helps. :)
Enzymes are catalysts in living things, including in the molds and bacteria that cause the spoiling reactions that decompose food. Use your knowledge of reaction rates to explain why food doesn’t rot as fast when it is covered and refrigerated. For full credit identify two different factors and explain how they are slowing down the reaction.
I already have that the cold temperature will slow down the reaction, and I'm sure the covering has something to do with it, but I'm not sure what the factor could be. I think my answer has to be one of the factors we learned in class (which are catalyst, concentration, surface area, and temperature).
Answer: Discover ZEISS Solutions
Investigate soft materials like polymers, catalysts, coatings and chemicals to gain a better understanding of their properties. Analyze surface topography, chemical composition, tensile deformation and fracture patterns. Scroll down this page and discover microscopy characterization techniques and solutions from ZEISS enabling you to perform soft materials research in your lab efficiently.
Answer: Discover ZEISS Solutions
Investigate soft materials like polymers, catalysts, coatings, and chemicals to gain a better understanding of their properties. Analyze surface topography, chemical composition, tensile deformation, and fracture patterns. Scroll down this page and discover microscopy characterization techniques and solutions from ZEISS enabling you to perform soft materials research in your lab efficiently.
Please describe the main job of the
digestive system and excretory system in
your own words.
What is the volume of a sample of ammonia gas (NH3) if it contains 0.23 moles?
The volume of a sample of ammonia gas : 5.152 L
Further explanationGiven
0.23 moles of ammonia
Required
The volume of a sample
Solution
Assumed on STP
Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure). At STP, Vm is 22.4 liters / mol.
So for 0.23 moles :
= 0.23 x 22.4 L
= 5.152 L
what is the advantage of highly diverse ecosystem
Answer:
Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. For example, A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms
Explanation:
Which use of biotechnology most benefits North Carolina agriculture? *
O Producing human vaccines
Producing disease resistant crops
O Producing new medicines from bacteria
O Producing enzymes to eliminate pollutants
Residents of North Carolina presently bum 5 billion gallons of imported
Answer:
Producing disease-resistant crops
Explanation:
B. is the Right Answer Hope this helps!
Among all the given options, the correct option is option B. Producing new medicines from bacteria is the most benefits for North Carolina agriculture.
What is biotechnology ?The human genome's sequencing has sparked a biotechnology revolution that will have an impact on every area of our lives, including our environment, diet, and methods of sickness detection and treatment.
Already, biotechnology has raised the standard of living for us. The scope as well as volume of biotechnology's effects will increase in the coming decade as the rate of technological advancements increases.
The use of molecular biology innovations for applications in animal and human health, agriculture, the environment, and speciality biochemical manufacture is the widest definition of biotechnology. Producing new medicines from bacteria is the most benefits for North Carolina agriculture.
Therefore, the correct option is option B.
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1 Which of the following is a true statement about work?
A It measures how quickly an object accelerates incorrect answer
B It measures how much effort is applied over a certain distance incorrect answer
C It measures the change in an object's rate of speed incorrect answer
D It measures how much time it takes to move a massive object incorrect answer
Without a picture I can't answer
answer Answer Answer Answer
Answer:
A
Explanation:
The carrot itself was made up of the same chemical bonds and chemicals even when it was cut but it was cut affecting the form/shape
In chemical changes, the object undergoes a change where the chemicals themselves undergo a change
what are two examples of the codominance in animals or plants
Answer:
Examples of codominance in animals include speckled chickens, which have alleles for both black and white feathers, and roan cattle, which express alleles for both red hair and white hair. Codominance is also seen in plants.
A protein is a polymer consisting of a specific sequence of _____???
DNA nucleotides fatty acids amino acids RNA nucleotides
Amino Acids is your answer