The temp range of Hanna pH temp probe lies between -5.0 to 105.0°C.
According to the new definition of temperature, according to the General Conference on Weights and Measures, is: "The kelvin, symbol K, is the SI unit of thermodynamic temperature and its magnitude is set by fixing the numerical value of the Boltzmann constant to be equal to exactly 1.380649 × 10-23... J K-1 [joules per kelvin].
Hence, the temperature range of Hanna pH temp probe lies between 5.0 to 105.0°C. Simultaneous pH and temperature measurements is done in a large dual-line LCD display. Automatic pH calibration at one or two points within two memorized buffer sets (standard or NIST) is selectable temperature unit (°C).
Learn more about temperature from the link given below.
https://brainly.com/question/14455512
#SPJ4
What is the number of atoms in a volume of 7.6 x 10^3 millimeters of krypton gas at STP?
a) 1.48 x 10^23
b) 2.03 x 10^23
c) 3.01 x 10^23
d) 3.90 x 10^23
e) 6.02 x 10^23
The number of moles of gas in a volume of [tex]7.6 x 10^3[/tex]millimeters is:
[tex]n = (1 atm) x (7.6 x 10^-3 L) / (0.08206 L∙atm/(mol∙K) x 273.15 K) = 3.01 x 10^-4 moles[/tex]
Now, we can find the number of atoms in [tex]3.01 x 10^-4[/tex]moles of krypton gas:
[tex](3.01 x 10^-4 moles) x (6.02 x 10^23 atoms/mole) = 1.81 x 10^20 atoms[/tex]
How is krypton gas made?Krypton gas is a noble gas in the Earth's atmosphere in small amounts. It can be separated from the air by a process known as fractional distillation, which takes advantage of the differences in boiling points of the different air components.
How can you store krypton gas?Once krypton is separated from air, it can be stored as a gas in pressurized containers for various applications. Krypton is also produced in nuclear reactors, as a byproduct of fission reactions.
To learn more about temperature, visit here:
brainly.com/question/7510619
#SPJ1
which of the following factor is not a reason for the ozone hole formation? a. chlorine-containing source gases b. polar stratospheric clouds c. global warming
Global warming factor is not a reason for the ozone hole formation in the earth
The Earth is surrounded by greenhouse gases, allowing heat to pass through to the surface but not back out into space. Water vapour (H2O), carbon dioxide (CO2), methane (CH4), CFC-HCF-PHC (also known as F gases, fluorinated hydrocarbons), nitrous oxide (N2O), and sulphur hexafluoride are examples of greenhouse gases (SF6).
The phrase "greenhouse effect" refers to the planet Global warming up as a result of a disruption in the energy balance between the quantity of radiation the Earth receives from the Sun and radiates into space. This impact is caused by an increase in the amount of radiation that is absorbed by the atmosphere and cannot be released into space from the surface of the Earth.
Learn more about Global warming here
https://brainly.com/question/8919004
#SPJ4
Select the statement which does NOT apply to an ideal gas.
A. There are no attractive forces between the gas molecules.
B. There are strong repulsive forces between the gas molecules.
C. The volume occupied by the molecules is negligible compared to the container volume.
D. The gas behaves according to the ideal gas equation.
B. The gas molecules are strongly attracted to one another. The ideal gas law states that an ideal gas has no intermolecular forces, hence this assertion does not apply to ideal gases.
A theoretical concept known as an ideal gas is used in thermodynamics to describe a gas' behaviour under specific circumstances. When a gas's behaviour can be explained by the ideal gas law, which states that a gas's pressure, volume, and temperature are all proportionate to one another, the gas is said to be an ideal gas. The ideal gas rule is based on the premise that a gas is made up of a lot of tiny, non-interacting particles that take up a lot more space than the particles do. Although all gases in actuality depart somewhat from their idealised behaviour, the ideal gas law nonetheless serves as a reasonable approximation for a variety of uses.
Learn more about "ideal gas." here:
https://brainly.com/question/28267242
#SPJ4
what is the total enthalpy change (in kj/mol) for the dissociation of a mole of hydrogen gas at stp?
the total enthalpy change for the dissociation of a mole of hydrogen gas at STP is 872 kJ/mol.
The dissociation of hydrogen gas (H2) into individual hydrogen atoms (2H) can be represented by the following chemical equation:
H2(g) → 2H(g)
The standard enthalpy change of this reaction is given by the bond dissociation energy of the H-H bond in H2, which is 436 kJ/mol. Since two H-H bonds are broken in the dissociation of one mole of H2, the total enthalpy change for the reaction is:
2 × 436 kJ/mol = 872 kJ/mol
Therefore, the total enthalpy change for the dissociation of a mole of hydrogen gas at STP is 872 kJ/mol.
Learn more about mole here:
https://brainly.com/question/28239680
#SPJ4
The total pressure of gases inside a vessel is 2.07×104 kPa. The partial pressure of oxygen in the tank is 8.27 × 10³ kPa.
What is the percentage of oxygen in the vessel?
21%
25%
40%
90%
The 40% is the percentage of oxygen in the vessel.
What is pressure ?
As force applied per unit area, pressure is defined. P=FA, where F is the force operating perpendicular to the surface area A, gives it mathematical expression. The pascal (Pa), which equates to a newton per square metre (N/m 2), is the accepted unit of pressure.
What is partial pressure ?
The idea of partial pressure arises from the fact that each individual gas contributes a portion of the total pressure, and that portion is the partial pressure of that gas. In order to describe all the pieces, it is essentially like taking a percentage or fraction of the whole.
Therefore, The 40% is the percentage of oxygen in the vessel.
Learn more about pressure from the given link.
https://brainly.com/question/28012687
#SPJ1
how many electrons can be assigned to orbitals designated by the quantum numbers n = 6, ℓ = 1?
The maximum number of electrons that can be assigned to orbitals designated by the quantum numbers n = 6, ℓ = 1 is six.
Quantum numbers n and ℓThe quantum number n represents the principal energy level of an atom. The quantum number ℓ represents the sublevel or subshell of an atom.
For any given principal quantum number, n, there is a maximum of two electrons that can be assigned to any particular orbital of the same angular momentum quantum number, ℓ. In this case, n = 6, meaning that the orbital is part of the sixth energy level, and ℓ = 1, meaning that the orbital is a p-orbital and there is a maximum of six electrons that can be assigned in p-orbital:
↑↓ ↑↓ ↑↓
6px 6py 6pz
Therefore, the maximum number of electrons that can be assigned to this orbital is six.
Learn more about quantum numbers here https://brainly.com/question/2292596
#SPJ11
The rate limiting step in a reaction is the slowest step in the reaction sequence. True False
The statement is true. The rate-limiting step in a reaction is the slowest step.
The rate-limiting step in a reaction is the slowest step in the reaction sequence and determines the overall rate of the reaction. This step is generally characterized by having the highest activation energy and is often the step with the lowest concentration of reactants. The rate-limiting step is often the rate-determining step, meaning that the rate of the reaction is dependent on this step. The rate-limiting step is also called the slow step or the rate-controlling step.
To know more about rate-limiting step please refer:
https://brainly.com/question/14923179
#SPJ4
Convert 25.44 g of calcium oxide to moles.
Answer:
0.4535 mols
Explanation:
CaO Molar Mass is 56.1 grams.
25.44gCaO x 1mol/56.1g = 0.4535 mols
How do you calculate freezing point?
The freezing point depression of a solution can be calculated using the equation:
ΔTf = Kf * molality
The freezing point of a solution is the temperature at which the solution changes from a liquid to a solid. The freezing point of a pure solvent is a well-known and characteristic property, but the freezing point of a solution is lower than that of the pure solvent due to the presence of solute particles.
ΔTf = Kf * molality
where ΔTf is the change in freezing point, Kf is the freezing point depression constant for the solvent, and molality is the concentration of solute in moles per kilogram of solvent.
To learn more about Freezing point :
https://brainly.com/question/2292439
#SPJ4
A 145 mL flask contains argon at 1.3 atm and 65 ◦C. What amount of Ar is present? Answer in units of mol.
A 145 mL flask contains argon at 1.3 atm and 65 ◦C. 6.12g is the amount of Ar is present. 0.34mol is the amount of Ar is present.
What is argon?Argon is indeed a chemical element with the atomic number 18 and the symbol Ar. It is considered a noble gas and belongs to Periodic Group 18. [6] Argon, with 0.934%, is the third-most prevalent gas in the Earth's atmosphere (9340 ppm).
It is more than twice as plentiful than water vapor (which averages around 4000 ppm but fluctuates widely), 23 times as prevalent than carbon dioxide (400 ppm), as well as 500 times more abundant than neon (18 ppm).
P×V = n×R×T
1.3 ×145 = n×8.314× 65
n = 188.5 / 540.4 =0.34mol
mass = 0.34 ×18=6.12g
Therefore, 6.12g is the amount of Ar is present.
To know more about argon, here:
https://brainly.com/question/14447731
#SPJ9
which method is used to reduce nitrogen oxide emissions? installation of catalytic converters increased temperature of combustion the addition of oxygen to combustion processes the use of fluidized bed combustion which is not used to prevent the emission of particulate matter?
Various strategies are used to minimize nitrogen oxide (NOx) emissions, including the installation of catalytic converters and raising the combustion temperature.
A) Catalytic converter installation: Catalytic converters employ a catalyst to enhance chemical processes that convert NOx into nitrogen and oxygen, hence lowering emissions.
B) Higher combustion temperature: Because NOx is created at high temperatures during combustion, lowering the combustion temperature can minimize NOx emissions.
C) Excess oxygen in combustion processes: Excess oxygen in the combustion process can lower NOx emissions.
To summarize, several ways are utilized to minimize NOx emissions, including the installation of catalytic converters, lowering the combustion temperature, supplying additional oxygen to the combustion process, employing fluidized bed combustion, and absorbing pollutants using calcium carbonate.
To know more about nitrogen oxide, visit,
brainly.com/question/28884437
#SPJ4
MARKING BRAINLEIST!!
Which is true about scientific theories? (2 points)
A. They are the result of a single experiment.
B. They are the results of many experiments over a long period of time.
C. They are proposed by scientists who wish to investigate a new topic.
D. They are only based on the most recent evidence.
The correct option stating about the scientific theories is option B that says they are results of many experiment over a long period of time.
A scientific theory is a study given by an observer by performing many experiments on a particular object over a large period of time.
For an example take Ohm's law, Ohm's law was not something that could be determined in a single experiment took a very large persistence and a very long period of time in order to come to the conclusion that the applied potential difference is directly proportional to the electric current passing through the conductor and there is a certain property inside every conductor that resist the flow of charge and that is Resistance.
The scientific theories when prove and correctly becomes a law and ohm's law one of them.
To know more about scientific theories, visit,
https://brainly.com/question/11555274
#SPJ4
A system containing 1 atm of an ideal gas is doubled in temperature and halved in volume. What is the new pressure? a. 2 atm b. 1 atm c. 0.5 atm d. 4 atm
A system containing 1 atm of an ideal gas is doubled in temperature and halved in volume, and then the new pressure is 4 atm. Thus, d is the correct option.
The gas law equation to find out the new pressure is as follows:
P₂ V₂ / T₂ = P₁ V₁ / T₁
Where,
The initial pressure, P₁ = 1 atm
The initial volume, V₁ = V₁
the initial temperature = T₁
The final pressure P₂ =?
The final volume is given as, V₂ = V₁/ 2
The final temperature, T₂ = 2T₁
P₁ V₁ / T₁ = (P₂ V₁/ 2 ) / 2T₁
P₂ = 4 atm
Thus, the new pressure is 4 atm.
To know more about ideal gas,
brainly.com/question/30631483
#SPJ4
the vapor pressure of benzene is 73.03 mm hg at 25oc. a nonvolatile, nonelectrolyte that dissolves in benzene is cholesterol . calculate the vapor pressure of the solution at 25oc when 7.462 grams of cholesterol, c27h46o (386.6 g/mol), are dissolved in 187.8 grams of benzene.
The vapor pressure of the solution at 25°C is 72.46 mmHg.
To calculate the vapor pressure of the solution, we can use Raoult's law, which states that the vapor pressure of a solution is equal to the vapor pressure of the pure solvent multiplied by the mole fraction of the solvent in the solution.
The mole fraction of the solvent, benzene, can be calculated as follows:
moles of benzene = mass of benzene / molar mass of benzene
moles of benzene = 187.8 g / 78.11 g/mol = 2.404 mol
moles of cholesterol = mass of cholesterol / molar mass of cholesterol
moles of cholesterol = 7.462 g / 386.6 g/mol = 0.0193 mol
The total number of moles in the solution is the sum of the moles of benzene and cholesterol:
total moles = 2.404 mol + 0.0193 mol = 2.423 mol
The mole fraction of benzene is:
Xbenzene = moles of benzene / total moles
Xbenzene = 2.404 mol / 2.423 mol = 0.9921
The vapor pressure of the solution can be calculated as follows:
Pbenzene-solution = Xbenzene x Pbenzene-pure
Pbenzene-solution = 0.9921 x 73.03 mmHg = 72.46 mmHg
Therefore, the vapor pressure of the solution at 25°C is 72.46 mmHg.
For similar questions on vapor pressure.
https://brainly.com/question/2272852
#SPJ4
what is the best description of a secondary active transport process that cotransports an amino acid with na ?
A secondary active transport process that cotransports an amino acid with Na+ is an example of a symport mechanism, in which both molecules move in the same direction across the cell membrane.
A secondary active transport process that cotransports an amino acid with Na+ is an example of a symport mechanism, in which both molecules move in the same direction across the cell membrane. Specifically, this type of transport involves the coupling of the energy stored in the electrochemical gradient of Na+ to the uphill transport of an amino acid against its concentration gradient. As Na+ flows down its concentration gradient into the cell, it drives the movement of the amino acid into the cell as well. This type of transport is known as secondary because it indirectly uses energy stored in the electrochemical gradient of Na+ to drive the movement of the amino acid, rather than directly using ATP hydrolysis like primary active transport mechanisms.
To learn more about cell membrane:
https://brainly.com/question/13524386
#SPJ4
A sample of what was thought to be gold was removed from a mine in San Francisco during the gold rush. After analysis, it was determined that it was actually fool's gold, or pyrite. The sample contained 17.6 grams of iron and 103 grams of sulfur. What is the percentage composition of each element in pyrite?
Answer:
14.594% Iron and 85.406% Sulfur
Explanation:
103g (S) + 17.6g (Fe) = 120.6g total mass
103/120.6 × 100 = 85.406% Sulfur
17.6/120.6 × 100 = 14.594% Iron
How do you find the valence core and unpaired electrons?
To find the valence core and unpaired electrons of an atom or molecule, one must first identify the outer electrons of the atom or molecule.
This can be done by looking at the electron configuration of the atom or molecule. The valence core is the set of electrons in the outermost energy level, which is also referred to as the valence shell.
The number of unpaired electrons is equal to the number of electrons in the valence shell that is not part of a covalent bond.
To determine the number of unpaired electrons in a molecule, it is necessary to subtract the total number of electrons in covalent bonds from the total number of electrons in the valence shell.
Learn more about valence core and unpaired electrons:
https://brainly.com/question/29523563
#SPJ4
can you calculate: the volume of base needed to reach an endpoint from buret readings? average volume to endpoint? the molarity of a solution from titration data?
The volume of base needed to reach an endpoint from buret readings is 0.025 L, the molarity of a solution from titration data is 0.088 M
Moles of NaOH at the end point:
Volume used at the end point: 0.02104 L
Molarity of NaOH: 0.1053 M= 0.1053 mol/L
So the average moles of NaOH used on the titration are:
n NaOH= (0.1053 mol/L)*(0.02104 L)
n NaOH= 0.0022 mol
-Number of moles of acetic acid neutralized:
The reaction of neutralization is:
CH3COOH + NaOH -----> CH3COONa + H2O
1mol 1mol 1mol 1mol
The stoichiometric relationship between NaOH and CH3COOH is 1:1 wich meand that the number of moles of NaOH conssumed will be the same njmber of moles of the acid present in solution:
n CH3COOH= (0.0022 mol NaOH)*(1 mol CH3COOH)/(1 mol NaOH)
n CH3COOH= 0.0022 mol
-Molarity of acetic acid:
If you used 25 mL of unknown concentration of acetic acid
V sln CH3COOH= 25 mL *( 1L/1000 mL)= 0.025 L
And if you determined that the number of moles present in 0.025 L is 0.0022 mol, the concentration will be
C CH3COOH= 0.0022mol / 0.025 L
C CH3COOH= 0.088 mol/L = 0.088 M
Learn more about Titration:
https://brainly.com/question/13651332
#SPJ4
Complete question:
Determine Average Volume NaOH to Endpoint 1. For each trial calculate volume NaOH needed to reach the endpoint. Final buret reading, ml - Initial buret reading, mL = Volume NaOH to endpoint, ml 2. Identify any outliers (any volume of NaOH that is very different from the rest). Outliers should be omitted in the calculation of the average. 3. Calculate the average volume of NaOH needed to reach the endpoint by summing the volume of NaOH determined for each trail then dividing by the number of trials used in the average. Remember to leave out any outliers.
Given 3. 82g of (NH4)2O find how many atoms of (NH4)2O
Answer: 4.41*10^23 atoms
Explanation:
3.82*(6.02*10^23)/52.10= 4.41*10^23 atoms
N*2=14.01*2=28.02
H*8= 1.01*8= 8.08
O*1=16.00*1=16.00
Add them together to get 52.10 g
Fireing the thrusters would have caused the pod to kove in the oppsite direction if
Force applied by the thrusters forced the pod to reverse course, this is determined by direction and strength of the force applied.
What is thrust?Thrust is a response force that can be quantified using Newton's third law. When a system expels and accelerates mass inside one direction, the accelerating mass causes the system to experience a force of same magnitude but opposite direction.
We were told because firing the thrusters slowed but did not halt the pod. If the pod collided with the space station, it would bounce and go in the other direction.
The most likely scenario as well as reason that this has occur is that the force applied by the thrusters forced the pod to reverse course. However, this is primarily determined by two factors: the direction and strength of something like the force applied.
Therefore, force applied by the thrusters forced the pod to reverse course, this is determined by direction and strength of the force applied.
To know more about thrust, here:
https://brainly.com/question/26712174
#SPJ9
What is the mass in grams of a 2. 65 mol sample of sodium phosphide, Na3P
264.841g Na3P
1) Find total mass of 1 mol Na3P:
3 × 22.99 (molar mass of Na) = 68.97g
1 × 30.97 (molar mass of P) = 30.97g
68.97g + 30.97g = 99.94g
2) Find mass in grams of 2.65 mol Na3P:
2.65 mol Na3P × (99.94g/1 mol) = 264.841g Na3P
chronic pesticide exposure has been clearly linked to
Chronic pesticide exposure has been linked to a variety of negative health outcomes, both acute and chronic.
Pesticides are commonly used in agriculture, public health, and residential settings to control insects, rodents, and other pests. However, these chemicals are often toxic and can pose risks to human health, particularly when used inappropriately or without proper safety precautions. One of the most common health effects of chronic pesticide exposure is neurological damage. Pesticides can penetrate the blood-brain barrier and cause damage to the central and peripheral nervous systems. This can lead to a variety of symptoms, including headaches, dizziness, memory loss, tremors, and seizures. In addition to neurological effects, chronic pesticide exposure has also been linked to cancer. Several studies have found that exposure to certain pesticides can increase the risk of developing various types of cancer, including lymphoma, leukemia, and breast cancer. Pesticides have also been shown to disrupt the endocrine system, which can lead to a variety of negative health effects, including reproductive problems, developmental delays, and thyroid dysfunction. Children and pregnant women are particularly vulnerable to these effects. Other negative health effects associated with chronic pesticide exposure include respiratory problems, skin irritation, and gastrointestinal problems. These health effects can range from mild to severe, and can have long-term consequences for affected individuals. Given the potential risks associated with chronic pesticide exposure, it is important to take steps to minimize exposure to these chemicals. This may include using alternative pest control methods, wearing protective clothing and equipment when handling pesticides, and following safe handling procedures. Additionally, it is important to be aware of the potential health risks associated with chronic pesticide exposure, and to seek medical attention if symptoms arise.
To know more about Chronic pesticide click here:
brainly.com/question/24316938
#SPJ4
What is the ground state configuration of calcium (Ca)?
The ground state configuration of calcium (Ca) is 1s2 2s2 2p6 3s2 3p6 4s2. The ground state configuration is the lowest energy state that an atom or molecule can occupy.
It is the electron configuration of an atom or molecule in its most stable form, corresponding to the minimum energy state. The least energetic and most stable configuration is the ground state configuration. An excited state configuration is a higher energy configuration (it requires energy input to create an excited state). The electrons used for bonding are called valence electrons. The primary quantum number (n), the orbital (s, p, d, or f), and the total number of electrons are used to represent electron configurations. The total number of electrons is expressed as a superscript.
To learn more about electron configuration click here https://brainly.com/question/29757010
#SPJ4
Looking at the cladogram, Hector determines that the tuatara and lizard both descended from common ancestor #2. Naiomi determines that the tuatara and lizard both descended from common ancestor #3.
Who is correct? Why?
Read Passage
Question Image
A
Both Hector and Naiomi are correct. The tuatara and lizard both descended from common ancestor #2 and common ancestor #3.
B
Hector is correct, because both the tuatara and lizard evolved from common ancestor #2 based on the cladogram.
C
Naiomi is correct, because both the tuatara and lizard evolved from common ancestor #3 based on the
Answer: A
Explanation: Both Hector and Naiomi are correct because the sequence is Lizard → snake→ tuatara→ crocodile.
so, according to this sequence both tuatara and lizard descended from common ancestor.
Name two quantities besides pressure mass volume and number of moles can be derived using the ideal gas law
Answer:
Below
Explanation:
PV = n R T
Pressure Volume n umber of moles Gas constant and Kelvin temp
Answer:it is temperature and molar mass
Explanation:
when two or more monomers join together to form a polymer, water is produced. this is called what?
The process of joining two or more monomers to form a polymer is known as polymerization. In most cases, polymerization occurs through a chemical reaction called dehydration synthesis or condensation reaction.
This reaction occurs when a hydroxyl (-OH) group from one monomer and a hydrogen atom from another monomer are removed, producing a molecule of water as a byproduct. The remaining atoms then form a covalent bond between the monomers, resulting in the formation of a polymer. This process is commonly used in the synthesis of polymers such as proteins, nucleic acids, carbohydrates, and synthetic materials. The ability to polymerize different monomers allows for a wide range of properties to be obtained in the resulting polymers, which can be tailored for various applications.
Find more about Monomers
brainly.com/question/30703823
#SPJ4
the volume of a gas at 5.0 atm is 3.5 l. what is the volume of the gas at 7.0 atm at the same temperature?
At the same temperature, the gas has a 2.5 L volume at 7.0 atm. Volume in the context of gases is the quantity of space a gas takes up.
The ideal gas law, which connects a gas's pressure, volume, and temperature, can be used to solve this issue. PV = nRT. Assuming that the temperature stays constant, we may apply the ideal gas law in the following manner: P1V1 = P2V2. With the supplied values plugged in, we obtain (5.0 atm)(3.5 L) = (7.0 atm) (V2). We can calculate V2 as follows: V2 = (5.0 atm)(3.5 L) / (7.0 atm) = 2.5 L. As a result, the gas has a 2.5 L volume at the same temperature at 7.0 atm. In many industrial, scientific, and medical applications, accurate gas volume measurement and management are crucial.
Learn more about Volume here:
https://brainly.com/question/28368781
#SPJ4
Which substances leave the blood by diffusing directly through the plasma membrane of endothelial cells?
-Carbon dioxide
-Steroid hormones
-Oxygen
Oxygen and carbon dioxide are two substances that can diffuse directly from the blood through the plasma membrane of endothelial cells.
After exiting circulation, red blood cells transport oxygen, which is required for aerobic respiration, and this oxygen diffuses into the body's cells.
Carbon dioxide is produced as a byproduct of cellular respiration and diffuses into the bloodstream from the cells. In contrast to carbon dioxide and oxygen steroid hormones are too large to diffuse through the membrane instead they must be transferred into or out of the cell by a specific carrier molecule known as a transporter protein.
As a result, steroid hormones do not rapidly diffuse past the plasma membrane of endothelial cells and depart the body.
Learn more about diffusion in blood:
https://brainly.com/question/14119214
#SPJ4
Approximately how many atoms would be in 0.2 moles of iron? Express this is scientific notation.
Answer: 1.2044 x 10^23 atoms in 0.2 moles of iron.
Explanation: The number of atoms in a given amount of a substance can be calculated using Avogadro's number, which is approximately 6.022 x 10^23 atoms per mole. To find the number of atoms in 0.2 moles of iron, we can use the following steps:
1. Start with the given quantity of moles: 0.2 moles of iron.
2. Multiply the given quantity by Avogadro's number: 0.2 moles x (6.022 x 10^23 atoms/mole).
3. Calculate the product: (0.2 moles) x (6.022 x 10^23 atoms/mole) = 1.2044 x 10^23 atoms.
Therefore, there would be approximately 1.2044 x 10^23 atoms in 0.2 moles of iron.
this is a tiny unit of an element that retains the properties of the element. it is called___
The correct answer is Atom is the tiny unit of an element that retains the properties of the element.
An atom is a kind of particle that has an electron cloud surrounding its protons and neutrons-filled nucleus. The atom is the basic building block of the chemical elements, and it is the protons in an atom that allow us to distinguish one chemical element from another. For instance, every atom with 11 protons is sodium, while any atom with 29 protons is copper. The quantity of neutrons in an element determines its isotope.
Atoms are very small, with a diameter of around 100 picometers. An typical human hair has about one million carbon atoms. Standard microscopes cannot observe atoms since this is smaller than the smallest wavelength of the visible light spectrum.
To learn more about Atom click the link below
brainly.com/question/29712088
#SPJ4
