Which of the following statements best describes the type of bond formed
between sodium and chlorine in sodium chloride?
0-a
Na
P:11
N:12
00
Na
66
00
Cl
P:17
N:18
00
00
Sodium Chloride
Sodium and chlorine form a ionic bond because they are sharing their valence
electrons.
Sodium and chlorine form an lonic bond because chlorine transfers its seven
valence electrons to sodium.
4
Sodium and chlorine form an ionic bond because chlorine takes sodium's only
valence electron
Answers
Positively charged sodium ions (Na+) and negative ion ions (Cl ) combine to generate sodium chloride (NaCl). Chemical bond is the form of bonding that exists between these ions.
What is the purpose of sodium chloride?As an electrolyte particularly, sodium chloride is used to assist reduce heat cramps brought on by excessive perspiration. The production of a typical isotonic solution of sodium chloride also uses this medication. There is no need for a license to get this medication.
Why is sodium chloride given to patients?To replace salt and water that have lost from your body as a result of certain conditions, sodium chloride 23.4% injection is employed (eg, hyponatremia or low salt syndrome). Furthermore, it is added to IV fluids that contain carbohydrates and parenteral nutrition total (TPN).
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Related Questions
The wavelength of yellow light is about 550nm. How many cm is it?
Answers
Answer:
\(5.5 \times {10}^{ - 5} \: cm\)
Explanation:
We know, that:
\(1nm \: = \: 1 \times {10}^{ - 7} \: cm \)
Now, we can make a proportion according to this:
1nm - 1×10^-7 cm
550 nm - x cm
\(x = \frac{550 \times 1 \times {10}^{ - 7} }{1} = 550 \times {10}^{ - 7} = 5.5 \times {10}^{ - 5} \: cm \: = 0.000055 \: cm\)
What mass of NaCl is needed to produce a 26.4 mol/L with a 1.7 L volume?
Answers
we would need 2625.13 grams (or 2.62513 kilograms) of NaCl.
To calculate the mass of NaCl required to produce a 26.4 mol/L solution with a 1.7 L volume, we need to use the formula that relates the mass of solute, moles of solute, and molarity:Molarity (M) = moles of solute / liters of solution Rearranging this formula, we get:moles of solute = Molarity (M) x liters of solutionWe can use this formula to find the moles of NaCl needed:moles of NaCl = 26.4 mol/L x 1.7 L = 44.88 molNow, we can use the molar mass of NaCl to convert from moles to grams. The molar mass of NaCl is 58.44 g/mol:mass of NaCl = moles of NaCl x molar mass of NaClmass of NaCl = 44.88 mol x 58.44 g/mol = 2625.13 gTo produce a 26.4 mol/L solution with a 1.7 L volume.
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In an electrical circuit, the presence of a resistor limits the current and prevents
damage related to short circuits.
True or
False
Answers
The electronics you use every day would not be possible without metalloids. Which statements are true about metalloids? choose three statements that apply.A. They are somewhat reactive B. They are soft, solid, and malleableC. They can be used to make a semiconductorD. They have some properties of metals and some of nonmetals
Answers
Answer:
\(A,\text{ C , D}\)Explanation:
Here, we want to select 3 statements that are true about metalloids
Metalloids are the middle ground between metals and non-metals
They are not completely metals and also are not completely non-metals. They are in between the two kinds of elements
The correct choice of answers are the following:
a) They are somewhat reactive
b) This is incorrect because they are usually not malleable. An example is silicon
c) This is correct. They are popular for making semi-conductors
d) This is also correct. They are the bridge between metallic and non-metallic elements
Cyclohexane (C6H12) undergoes a molecular rearrangement in the presence of AlCl3 to form methylcyclopentane (CH3C5H9) according to the equation: C6H12 ⇌ CH3C5H9 If Kc = 0.143 at 25°C for this reaction predict the direction in which the system
Answers
Answer:
The reaction will shift leftwards, towards the formation of more cyclohexane at 25 °C
Explanation:
Hello,
In this case, for the given chemical reaction, we can write the law of mass action (equilibrium expression) as shown below:
\(Kc=\frac{[CH_3C_5H_9]}{[C_6H_{12} ]}\)
Thus, since Kc < 1, we can conclude there are more moles of cyclohexane at equilibrium (denominator is greater than numerator), therefore, the reaction will shift leftwards, towards the formation of more cyclohexane at 25 °C.
Best regards.
Balance the below equations:
Mg + O₂ → MgO
Al + O₂ → Al₂O3
Answers
you can use this method to balance any equation,
write you elements down , then start balancing them one after the other,
starting from metals , to non metals
it's better to balance hydrogen and oxygen the last and in most cases , they are automatically balanced
you can support by rating brainly it's very much appreciated ✅
The system at equilibrium below is heated.
How does the system adjust to reestablish
equilibrium?
2SO₂(g) + O₂(g) ⇒ 2SO3(g) + 198 kJ
Answers
According to Le Chatelier's principle, when a system at equilibrium is subjected to a stress, it will shift in a way that counteracts that stress. In this case, heating the system adds energy to it, which can be viewed as a stress. To counteract the increase in temperature, the system will shift in the endothermic direction, absorbing some of the added heat.
The forward reaction, in which SO₂ and O₂ combine to form SO₃, is an exothermic process since heat is released. By Le Chatelier's principle, increasing the temperature will shift the equilibrium to the left, favoring the reverse reaction (the endothermic direction). This means that some of the SO₃ molecules will decompose back into SO₂ and O₂.
As the system adjusts to reestablish equilibrium, the concentrations of SO₂, O₂, and SO₃ will change. The concentrations of SO₂ and O₂ will increase, while the concentration of SO₃ will decrease. This shift occurs in an attempt to consume some of the excess heat and reduce the temperature back towards the original equilibrium.
Overall, heating the system disrupts the equilibrium, causing a shift towards the reverse reaction. This shift helps absorb the added heat and restore the system to equilibrium by altering the concentrations of reactants and products.
what are 2 ways that all hydrocarbons are alike?
Answers
Answer:
Composition: All hydrocarbons are made up of only two types of atoms: carbon and hydrogen. They are like building blocks that contain carbon and hydrogen stuck together.
Organic Nature: Hydrocarbons are special because they are part of a group of compounds that come from living things or things that were once alive. They have carbon and hydrogen in them, which is what makes them different from other types of compounds.
Explanation:
The irreversible isomerization A
B was carried out in a batch reactor and the following concentration time data were obtained:
Time vs Concentration data in a Batch reactor
t 0 3 5 8 10 12 15 7.5
mol/h 4 2.89 2.25 1.45 1.0 0.65 0.25 0.07
Determine the reaction order,
, and the specific reaction a rate constant, k, using any method of your choice.
Answers
The reaction order and specific reaction rate constant can be determined by performing the kinetics experiment on irreversible polymerization A. Kinetic experiments can be used to investigate the rate and mechanism of chemical reactions. Chemical kinetics is the study of chemical reactions' speed and pathway.
The term "kinetics" refers to the study of reaction rates, which are determined by measuring the concentration of reactants and products as a function of time.Kinetics experiments can be used to determine the reaction rate and order of reaction. A chemical reaction's rate is defined as the change in the concentration of a reactant or product per unit time. The order of a reaction refers to the number of molecules that must react to produce a product. The order of reaction can be determined by measuring the initial rate of the reaction as a function of concentration.Methods for determining the reaction rate order include the initial rate method, the half-life method, and the integrated rate method. The initial rate method determines the reaction order by measuring the initial rate of the reaction at different reactant concentrations. The half-life method determines the reaction order by measuring the time it takes for the reactant concentration to decrease by half.The integrated rate method determines the reaction order by measuring the concentration of the reactant or product at different times.The specific rate constant can be determined by using the Arrhenius equation, which relates the rate constant to the activation energy, temperature, and frequency factor. The frequency factor can be determined by measuring the rate constant at different temperatures.For such more question on polymerization
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Prioritise the type of hammer you would use to drive or shape material that could easily be damaged by hammers such as the following:
Answers
Some common types of hammers and their uses are
Claw hammer - used for driving nails and removing themSledgehammer - used for heavy-duty jobs like breaking concrete or driving stakesFraming hammer - used for framing houses and other construction workWhich hammers are used for delicate shpaes?When working with delicate shapes, the following types of hammers can be used
Rubber Mallet - It has a rubber head that is used to avoid damage to the surface of the material while striking.
Soft-Face Hammer - This hammer has replaceable soft tips made of materials like nylon, brass, or plastic that prevent damage to the surface.
To mention a few.
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HEY COULD SOMEONE HELP ME WITH THIS PLS PLS ITS DUE TODAY PLS
Answers
b) gloves and other bodily protection
c) a symbol showing that it is flammable
d) they most likely were unaware. I do not think they would intentionally hurt people.
Larry made this picture to represent a chemical reaction:
Which of the following statements best explains the type of chemical reaction represented by Larry's picture?
a
It represents a synthesis reaction because two reactants form one product.
b
It represents a synthesis reaction because the total mass of the product is less than the mass of the reactants.
c
It represents a decomposition reaction because one reactant breaks apart and forms two products.
d
It represents a decomposition reaction because the same atoms are present in the reactants and products.
Answers
To solve such this we must know the concept of synthesis reaction. Therefore, the correct option is option A that is It represents a synthesis reaction because two reactants form one product.
What is chemical reaction?Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved. There are so many types of chemical reaction reaction like combination reaction, double displacement reaction.
It represents a synthesis reaction because two reactants form one product. This statements best explains the type of chemical reaction represented by Larry's picture. synthesis reaction is the one where two reactant combine to form one product.
Therefore, the correct option is option A.
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Physical or chemical change?
Red and blue food coloring mix to make purple.
Answers
Answer:
chemical change
Explanation:
because physical is like if something is happening inside your body
BTW
I hope this helps
In a reaction, 2-methylbutan-1-ol is oxidised by potassium
dichromate.
Name and draw (as displayed
formula) the two products of this reaction.
Answers
Answer:
Explanation:
Alcohols can be oxidised by a variety of oxidising agents. Sodium or potassium dichromate acidified with dilute sulphuric acid can bring about oxidation in straight chained alcohols.
Answer:
2-methylbutan-1-ol is oxidised by potassium dichromate: 2-methylbutan-1-ol + [O] ==> 2-methylbutan-1-al + water CH3CH2CH(CH3) CH2OH + [O] ==> CH3CH2CH(CH3) CHO + H2O
Explanation:
explain how convection currents affect sea breezes and land breezes.
pls help
Answers
There are 3 ways that heat travels: conduction, convection, and radiation. Convection happens in fluids. What happens is that as a fluid heats up, it expands. Since it has expanded, it is less dense than the fluid next to it, so it rises above it. In the atmosphere, with sea and land breezes, as either the ground or sea is warmer than the other, it heats the air above it. This air rises above the cooler air next to it. The cooler air then moves in to take the place of the warmer air that just rose up. This air then is warmed by the ground or water beneath it, so it then rises, and so on.
What chemical reaction affects thermal energy?
Answers
this model represents an atom and it parts. label the parts of an atom
Answers
Answer:
Pls attach the picture for labelling.
Generally parts of an atom are:
1) Protons (+)
2) Neutrons (neutral)
Protons and neutrons are present in the nucleus
3) Electrons (-)
which process is used to produce gases from solutions of salts dissolved in water or another liquid?
A.Electrolysis
B.Metallic bonding
C.Ionic bonding
D. Polar covalent bonding
Answers
Answer:
A.Electrolysis
Explanation:
A.Electrolysis
For example, electrolysis of solution of NaCl in water gives H2 and O2.
Calculate the molarity of the solution in a flask that contains 2.50 moles of potassium sulfate in 125 mL of solution.
Answers
Answer:
20M or 20mol/L
Explanation:
molarity = moles/volume (in Liters)
= 2.5/0.125L
=20M or 20 mol/L
What must be satisfied for a hypothesis to be useful?
A. It must be theoretical.
B. It must be observable.
C. It must be based on scientific law.
D. It must be testable.
Answers
How many moles of copper Il sulfide can be produced from 2.8 moles of sulfur? Cu + S --> CuS
Answers
Answer: 2.8 moles of copper (Il) sulfide \((CuS)\) will be produced from 2.8 moles of sulphur.
Explanation:
The balanced chemical reaction is:
\(Cu+S\rightarrow CuS\)
According to stoichiometry :
1 mole of \(S\) produce = 1 mole of copper (Il) sulfide \((CuS)\)
Thus 2.8 moles of \(S\) will produce=\(\frac{1}{1}\times 2.8=2.8moles\) of copper (Il) sulfide \((CuS)\)
Thus 2.8 moles of copper (Il) sulfide \((CuS)\) will be produced from 2.8 moles of sulphur.
3. A Wilkinson’s catalyst is widely used in the hydrogenation of alkenes. Show a catalytic cycle, including: i. chemical structure of the catalyst, with complete stereochemistry ii. molecular geometry of catalyst iii. type of reactions involved iv. the appropriate starting material, reagent and solvent v. major and minor end-products vi. all intermediates, for each reaction stated in (iii)
Answers
We can see here that the catalytic cycle for the hydrogenation of alkenes using Wilkinson's catalyst involves several steps.
What are the steps involved?Here's an overview of the catalytic cycle, including the necessary details:
i. Chemical structure of the catalyst:
Wilkinson's catalyst, also known as chloridotris(triphenylphosphine)rhodium(I), has the following chemical structure: [RhCl(PPh3)3]
ii. Molecular geometry of the catalyst:
The Wilkinson's catalyst has a trigonal bipyramidal geometry around the rhodium center. The three triphenylphosphine (PPh3) ligands occupy equatorial positions, while the chloride (Cl) ligand occupies an axial position.
iii. Type of reactions involved:
The catalytic cycle involves several reactions, including:
Oxidative addition: The rhodium center undergoes oxidative addition, reacting with molecular hydrogen (H2) to form a dihydride intermediate.Alkene coordination: The alkene substrate coordinates to the rhodium center, forming a π-complex.Hydrogenation: The coordinated alkene undergoes hydrogenation, resulting in the addition of hydrogen atoms to the double bond and formation of a metal-alkyl intermediate.Reoxidation: The metal-alkyl intermediate reacts with a hydrogen molecule to regenerate the rhodium dihydride species.iv. Starting material, reagent, and solvent:
The starting material is an alkene, and the reagent is Wilkinson's catalyst ([RhCl(PPh3)3]). The reaction is typically carried out in a suitable solvent, such as dichloromethane (CH2Cl2) or tetrahydrofuran (THF).
v. Major and minor end-products:
The major end-product of the hydrogenation reaction is the fully saturated alkane, resulting from the addition of hydrogen across the double bond. The minor end-product may include cis- or trans-configured alkanes if the original alkene substrate possesses geometric isomers.
vi. Intermediates:
The intermediates in the catalytic cycle include:
Rhodium dihydride complex: [RhH2(PPh3)3]Alkene-Rhodium π-complex: [Rh(η2-alkene)(PPh3)3]Metal-alkyl intermediate: [Rh(alkyl)(PPh3)3]These intermediates play a crucial role in facilitating the hydrogenation reaction and enabling the catalytic cycle to proceed.
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2.62 Predict the chemical formulas of the compounds formed by the following pairs of ions: (a) Cr3+ and Br, (b) Fe3+ and O2, (c) Hg22+ and CO2, (d) Ca2+ and CIO3, (e) NH4+ and PO³
Answers
Answer:
(a) Cr3+ and Br- will form CrBr3 (chromium(III) bromide)
(b) Fe3+ and O2- will form Fe2O3 (iron(III) oxide)
(c) Hg22+ and CO32- will form Hg2CO3 (mercury(I) carbonate)
(d) Ca2+ and ClO3- will form Ca(ClO3)2 (calcium chlorate)
(e) NH4+ and PO43- will form (NH4)3PO4 (ammonium phosphate)
Explanation:
chatGPT
The chemical formulas for the compounds formed by the given pairs of ions are: (a) CrBr3, (b) Fe2O3, (c) Hg2(CO3)2, (d) Ca(ClO3)2, and (e) (NH4)3PO4.
Explanation:(a) Cr3+ and Br- : In order to form a neutral compound, the charges of the ions must balance. The charge of Cr3+ is 3+ and the charge of Br- is 1-. To balance the charges, we need three Br- ions for every Cr3+ ion. Therefore, the chemical formula is CrBr3.
(b) Fe3+ and O2- : The charge of Fe3+ is 3+ and the charge of O2- is 2-. To balance the charges, we need two O2- ions for every Fe3+ ion. Therefore, the chemical formula is Fe2O3.
(c) Hg22+ and CO2- : The charge of Hg22+ is 2+ and the charge of CO2- is 2-. The charges are already balanced, so no extra ions are needed. Therefore, the chemical formula is Hg2(CO3)2.
(d) Ca2+ and ClO3- : The charge of Ca2+ is 2+ and the charge of ClO3- is 1-. To balance the charges, we need two ClO3- ions for every Ca2+ ion. Therefore, the chemical formula is Ca(ClO3)2.
(e) NH4+ and PO3- : The charge of NH4+ is 1+ and the charge of PO3- is 3-. To balance the charges, we need three NH4+ ions for every PO3- ion. Therefore, the chemical formula is (NH4)3PO4.
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Convert 150 grams of NaOH to particles of NaOH
Answers
150 grams of NaOH is approximately equal to 2.256 x 10^24 particles of NaOH.
To convert grams of NaOH to particles of NaOH, we need to use the concept of molar mass and Avogadro's number. The molar mass of NaOH is calculated by adding the atomic masses of sodium (Na), oxygen (O), and hydrogen (H) together. It can be determined as follows:
Na: 22.99 g/mol
O: 16.00 g/mol
H: 1.01 g/mol
Molar mass of NaOH = (22.99 g/mol) + (16.00 g/mol) + (1.01 g/mol) = 40.00 g/mol
Now, we can use the molar mass to convert grams of NaOH to moles. Since 1 mole contains Avogadro's number (approximately 6.022 x 10^23) particles, we can determine the number of particles as follows:
150 g NaOH * (1 mol NaOH / 40.00 g NaOH) * (6.022 x 10^23 particles / 1 mol NaOH) ≈ 2.256 x 10^24 particles
It's important to note that this calculation assumes the substance is pure NaOH and that the molar mass and Avogadro's number are accurate.
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How to draw a structural formula of 1-pentene?
Answers
Answer:
Explanation:
There are 5 carbon and one double hydrogen bond. The 1 indicates where the double bond goes. Each end of a line is a carbon.
For the follow problem, use your knowledge of periodic trends and Coulomb's law to explain the observation that is presented.
1. Boron has an atomic radius of 87 pm and Carbon has an atomic radius of 67 pm.
Answers
Answer:
Explanation:
The atomic radius of an element is a measure of the size of its atoms. It is defined as half the distance between the nuclei of two adjacent atoms in a crystal lattice of the element.
In the case of boron and carbon, we observe that boron has a larger atomic radius (87 pm) than carbon (67 pm). This is contrary to what we would expect based on their positions in the periodic table. Boron is located to the left of carbon and has one less proton in its nucleus, which would suggest that it should have a smaller atomic radius than carbon.
However, other factors can influence the atomic radius of an element, such as the effective nuclear charge experienced by the outermost electrons. The effective nuclear charge is the net positive charge experienced by an electron in an atom, taking into account the shielding effect of inner-shell electrons.
In the case of boron, it has one less electron than carbon, so the effective nuclear charge experienced by the outermost electron is greater. This causes the electron to be attracted more strongly to the nucleus, making the atom smaller. In contrast, the larger number of electrons in the carbon atom results in weaker attraction to the nucleus and a larger atomic radius.
In summary, the observation that boron has a larger atomic radius than carbon can be explained by considering the effective nuclear charge experienced by the outermost electrons in each atom.
0.52 g of sodium was added to 100 cm3 of water. Calculate: a) The volume of hydrogen evolved at 298 K and 100 kPa. b) The concentration of the sodium hydroxide solution produced, assuming the volume of water does not change. 2Na+ 2H2O + 2NaOH + H2
Answers
Answer: 280 ml and 0.226M NaOH
Explanation: Three steps:
1) Calculate the moles of H2 and NaOH produced. See the graphic. 0.52 grams of Na is 0.0226 moles of Na. Water is in excess, so assume all the Na is converted to NaOH and H2. The molar ratio of H2 to Na is 1/2, so we'll only obtain 0.0226/2 = 0.011309 moles of H2 (Blue arrow). The molar ratio for the NaOH is 1 to 1, so we'll have 0.0226 moles of NaOH.
2) Use the ideal gas law to find the volume 0.011309 moles of H2 at the given conditions. PV=nRT. See the second graphic for the summary of input conditions. kPa was converted to atm. I find the volume of H2 produced to be 0.280 liters, or 280 ml.
3) Find the NaOH concentration. Despite the caveat that we should assume the volume of water does not change, in fact I find that 0.407 grams is consumed in the reaction. But, in keeping with the spirit, we'll assume all the original volume, 100 cm^3, is still intact. At a density of 1 g/cm^3, that is 100 ml of water. The 0.0226 moles of NaOH is dissolved in 100ml of water. The concentration, M, is in moles/liter, so to find M: (0.0226 moles/0.100 liters) = 0.226M NaOH
Wheh . .
According to the Foliated Metamorphic Rock Chart slate, phyllite, schist, and gneiss can all have the same parent rock (shale). If this is true, what determines the difference between a slate and a gneiss rock that both are formed from shale? What role does the parent rock play in determining the type of metamorphic rock that will be formed?
Answers
According to the Foliated Metamorphic Rock Chart slate, phyllite, schist, and gneiss can all have the same parent rock (shale) is a true statement.
The parent rock, in this case shale, plays a significant role in determining the type of metamorphic rock that will be formed. The minerals and structure of the parent rock provide the starting material for the metamorphic rock, and the specific conditions under which the rock undergoes metamorphism determine the final characteristics of the metamorphic rock.What determines the difference between a slate and a gneiss rock that both are formed from shale?Slate, phyllite, schist, and gneiss are all types of metamorphic rocks that can be formed from shale, which is a sedimentary rock composed of clay and other fine-grained minerals. The specific type of metamorphic rock that is formed from shale depends on the conditions under which the shale undergoes metamorphism, including the temperature, pressure, and presence of fluids.
Slate is a fine-grained metamorphic rock with a uniform, flat surface and a layered structure. It is formed when shale undergoes low-grade metamorphism, which occurs at relatively low temperatures and pressures.
Therefore, Gneiss, on the other hand, is a medium- to coarse-grained metamorphic rock with a banded or wavy texture. It is formed when shale undergoes high-grade metamorphism, which occurs at higher temperatures and pressures.
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A chemist adds 390.0 mL of a 1.5M aluminum chloride (AICI3) solution to a reaction flask. Calculate the mass in grams of aluminum
chloride the chemist has added to the flask. Be sure your answer has the correct number of significant digits.
Answers
Answer:
Calculate the mass in grams.
Answer: Calculate the mass in grams of calcium bromide the chemist has added to the flask. Round your answer to 3 significant digits.
Explanation:
A bottle of nail polish remover containing ethyl acetate was spilled in an unventilated room measuring 9.00 m × 6.00 m × 3.00 m. After some time had passed, it was determined that 8.701 g of ethyl acetate had evaporated. Calculate the concentration of ethyl acetate in milligrams per cubic meter.
Answers
Answer:
53.69 mg/m³
Explanation:
To calculate the concentration of ethyl acetate in milligrams per cubic meter, we need to know the total volume of the room and the amount of ethyl acetate that evaporated in grams.
The total volume of the room is:
V = l x w x h
V = 9.00 m x 6.00 m x 3.00 m
V = 162.00 cubic meters
To convert the amount of ethyl acetate evaporated from grams to milligrams, we multiply by 1000:
amount of ethyl acetate = 8.701 g = 8,701 mg
Now we can calculate the concentration of ethyl acetate in milligrams per cubic meter:
concentration = amount of ethyl acetate / volume of room
concentration = 8,701 mg / 162.00 cubic meters
concentration = 53.69 mg/m³
Therefore, the concentration of ethyl acetate in the unventilated room is 53.69 mg/m³.