The volume of HCl is needed to completely neutralize is 81.25 ml.
Formula of neutralization, M₁V₁ = M₂V₂
M₁ = concentration of HCl
V₁ = volume of HCl
M₂ = concentration of NaOH
V₂ = volume of NaOH
Put the value in M₁V₁ = M₂V₂
0.100 × V₁ = 25 × 0.325
V₁ = 25 × 0.325/ 0.100
V₁ = 81.25 ml
Hence, the volume of HCl is 81.25 ml.
In chemistry, neutralization or neutralization is a chemical reaction wherein acid and a base react quantitatively with every other. In a reaction in water, neutralization results in there being no excess of hydrogen or hydroxide ions present inside the answer.
whilst a strong acid reacts with a strong base the ensuing salt is neither acidic nor primary in nature i.e. it's far impartial for instance whilst HCl, a strong acid, reacts with NaOH, a robust base, the resulting salt is sodium chloride and water.
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a jar of crunchy butter contain 1.26 kg of peanut butter . if you use 7.7% of the peanut butter for a sandwich how many ounces of peanut butter did you take out of the container
The mass of the peanut butter that you took out of the container is 34.1 ounces
What is a conversion factor?The conversion factor is the manner in which we are able to change a value from one unit to another, Let us recall that there could be several units that could be used for a particular calculation and many times it is necessary to convert a value from one of the units to another for ease of calculation.
Mass of the crunchy butter = 1.26 kg
Percent used = 7.7%
Mass of the crunchy butter used = 7.7/100 * 1.26 kg = 0.97 Kg
To convert to ounces;
0.97 Kg * 35.247 ounces/1 Kg
= 34.1 ounces
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Practice
5. The Republic of China presented one of the world's largest flags to the city of
Kaohsiung in 1989. The flag of the Republic of China measured 1.26 × 10^4 cm
by 8.40 x 10³ cm. What is the area of this flag in square centimeters?
The area of this flag in square centimeters is 10.58 × [tex]10^{7} cm^{2}[/tex].
What is the area of a rectangle?The quantity of unit squares that fit inside a shape determines its area. A unit square is a square having a side of one unit, as "unit" here denotes one (1). The total number of unit squares that are contained within a rectangle's perimeter is hence its area. Or, you can refer to the area of the rectangle as the region included within the rectangle's envelope. The rectangular tiles that make up your home are a fantastic illustration of form. The number of tiles on the floor makes it simple to calculate how much area it takes up. You may calculate the rectangle's area using this as well. A number of unit squares equal the area of a rectangle.
Area of flag = area of a rectangle
= l × b
= 1.26 × [tex]10^{4}[/tex] × 8.40 ×[tex]10^{3}[/tex]
= 10.58 × [tex]10^{7}[/tex] [tex]cm^{2}[/tex]
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what us a bond between a positive and a negative ion called
Answer: ionic bond
Explanation:
How many iron atoms in 2.35 mol of Fe?
Answer:
6.022 X 1023 atoms
Explanation:
need help asap. Just answer the question in the picture
Sodium only has one naturally occuring isotope, Na23 , with a relative atomic mass of 22.9898 u. A synthetic, radioactive isotope of sodium, Na22 , is used in positron emission tomography. Na22 has a relative atomic mass of 21.9944 u.
A 2.4698 g sample of sodium containing a mixture of Na23 and Na22 has an apparent "atomic mass" of 22.9551 u . Find the mass of Na22 contained in this sample.
Based on the given relative atomic masses of the isotopes, the mass of Na-22 contained in this sample is 0.086 g.
What is the relative atomic mass of an element?The relative atomic mass of an element is the average mass of one mole of an atom of an element calculated from the atomic masses of the atoms of an element and their relative abundances.
relative atomic mass of an element = sum of atomic mass * relative abundance of each isotope.Isotopes of elements are atoms of an element that differ from each other by their masses. The difference in the mass of the isotopes is a result of the difference in the number of neutrons contained within the nucleus of the atoms of the isotopes.
Considering the naturally occurring sodium isotope, Na-23, and the synthetic, radioactive isotope of sodium, Na-22:
the relative atomic mass of Na-23 = 22.9898 u
the relative atomic mass of Na-22 = 21.9944 u.
mass of sample = 2.4698 g
the apparent atomic mass of the isotope = 22.9551 u
Sum of the relative abundances = 1
Let relative abundance of Na-22 = x
relative abundance of Na-22 = 1 - x
22.9898 * (1 - x) + 21.9944 * x = 22.9551
22.9898 - 22.9898x + 21.9944x = 22.9551
0.9954x = 0.0347
x = 0.035
Mass of Na-22 in the sample = 2.4698 * 0.035
Mass of Na-22 in the sample = 0.086 g
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How much heat does it take to raise the
temperature of 225 g of water from 25.0°C to 100.0°C?
Answer:
7.06 x 10⁴ J
Explanation:
To find the amount of heat necessary to heat the water, you need to use the following equation:
Q = mcΔT
In this equation,
-----> Q = heat (J)
-----> m = mass (g)
-----> c = specific heat capacity (J/g°C)
-----> ΔT = change in temperature
The specific heat capacity of water is 4.186 J/g°C. You can plug the given values into the equation and simplify to find "Q".
Q = ? J c = 4.186 J/g°C
m = 225 g ΔT = 100.0°C - 25.0°C = 75.0°C
Q = mcΔT <----- Given equation
Q = (225 g)(4.186 J/g°C)(75.0°C) <----- Insert values
Q = 7.06 x 10⁴ J <----- Multiply
A scientist wants to test the effects of different potassium chloride, KCI, solution concentrations. Potassium chloride is sometimes used to treat conditions that result from potassium depletion, such as cardiac or kidney disease. The scientist dissolves 255 g KCI to make a 3.20 L solution. Use the space provided to calculate the molarity of the potassium chloride solution.
According to the given statement the molarity of the potassium chloride solution is 1068.75 moles KCL .
What do molarity mean?The molarity of a material refers to the amount of it that is present in a given solution volume (M). Molarity is indeed the measure of how many moles of a solute are contained per liter of a solution. It is commonly referred to as the molar concentration of the solution.
Briefing:To find the number of moles of potassium chloride, your solute, use the compound's molar mass, the mass of one mole of potassium chloride
1 mole of KCl = 74.55 g
255 g/1mole of KCL
255g / 74.55g
=3.420 g
Molarity is expressed per liter of solution. Since you dissolve 3.420 moles of potassium chloride in 3.20 mL of solution, that 1.0 L will contain
[tex]$1.0 \mathrm{~L} \cdot \frac{10^3 \mathrm{mL}}{1L} \cdot \frac{3.420\mathrm{moles}}{3.20 \mathrm{mL}}$[/tex] = 1068.75 moles KCL
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How will you apply the concept of biology,chemistry, and homeostasis in your future career
My ability to interconnect my understanding in biology, chemistry and homeostasis makes me a great scientist as I will apply all these in my future career by:
Making sure I feed on a healthy balance diet.Separating mixtures of insoluble solids from solutions by way of filtration.Recognizing my response to certain dangerous situation when the emergency hormones are released.What is meant by an emergency hormones?These are the hormones which are released when we suddenly find ourselves in a dangerous or life threatening situation such as we need manage risk or prevent accident. This hormone is known as adrenaline. They are known as flight or fight hormones.
So therefore, the knowledge I acquired from biology, chemistry and homeostasis will used to make my career more productive in the nearest future.
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Convert 528 ft/min to ft/sec.
One foot equals 60 feet per minute if the conversion factor is 60. The 528ft/min will be 8.8ft/sec.
How many feet per minute does one foot per second equal?One foot equals 60 feet per minute if the is 60.
How quickly does light move per second?To convert speed to miles per hour, multiply the speed in feet per second by 0.681818. You could, for example, convert 5 feet per second to miles per hour using the method shown above. Miles per hour and feet per second are used to measure speed. Continue reading to learn more about each unit of measurement.
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What are the top three sources of U.S. electricity generation? Estimate the overall efficiency of U.S. electricity generation. How does this compare to the efficiency for transportation?
For electricity generation, the three major parts of energy are fossil fuels (coal, natural gas, and petroleum), nuclear energy, and renewable power sources.
How is electricity generated in the United States?According to the US Energy Information Administration, natural gas, nuclear energy, and coal will generate the majority of the country's electricity in 2020. Renewable energy sources such as wind, hydropower, solar power, biomass, wind, and geothermal are also used to generate electricity. In contrast to the use of fossil fuels, renewable electricity generation in the United States has increased in recent years, reaching nearly 800 terawatt hours in 2020. Natural gas, solar, and wind power continue to be the dominant forms of new generation capacity, accounting for 99.74% of all capacity additions in 2021 and 98% of capacity additions in 2022. Solar capacity has increased dramatically, with over 25,000 MW added since 2020, representing a 60% increase.To learn more about U.S. electricity generation, refer to:
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is the soap solution acid how would you verify it
Answer:
Yes, soap solution is acidic. You verify its acidity by using a red litmus paper.
Explanation:
The soap is a weakly acidic. To verify that the soap solution is acidic, put a drop of soap solution on a red litmus paper, color change will be observed and the red litmus paper will turn into blue. This gives us the evidence that soaps are acidic.
When the solid and liquid phases of a substance are present. simultaneously, which phase, the solid or the liquid, contains the greater amount of energy per particle? In which phase are the particles moving faster? Explain your answer
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EASY CHEMISTRY QUESTIONS FOR 100 POINTS
Answer:
Can't decide, Can't decide, and mixture.
Hopefully this is right. Technically you also can't decide on C but the chances of it being a pure substance are very low.
Explanation:
Technically, you can't decide on any of them since you have no idea of the actual compositions. Even if the ratio of the elements in grams are the same, there is no guarantee that the elements are chemically combined. For example, if you are given the info that a box contains 1 gram of hydrogen and 8 grams of oxygen, it could contain 9 grams of water, or 1 gram of hydrogen gas and 8 grams of oxygen gas. Knowing that water contains 1 gram of hydrogen and 8 grams of oxygen per 9 grams of oxygen doesn't help you determine if a container with 2 grams of hydrogen and 8 grams of oxygen has hydrogen peroxide or just a mix of the two gasses.
For A, it could be a pure substance since the ratio of E1 to E2 is twice the ratio of E1 to E2 in substance X. You can't really decide though
For B, it could be a pure substance since the ratio of E1 to E2 is four times the ratio of E1 to E2 in substance X. You can't really decide though
For C, It is very likely to be a mixture, since the ratio of E1 to E2 in substance C is 2.7 times that of the ratio of E1 to E2 in substance X
Wine goes bad soon after opening because the ethanol CH3CH2OH in it reacts with oxygen gas O2 from the air to form water H2O and acetic acid CH3COOH, the main ingredient of vinegar.
What mass of water is produced by the reaction of 6.5g of ethanol?
Round your answer to 2 significant digits.
The mass of water produced in the oxidation reaction is 2.5 g.
What is oxidation reaction of ethanol?
Oxidation reaction of ethanol occurs when ethanol comes in contact with oxygen, producing water and acetic acid. This type of reaction can also produce carbon dioxide and water.
The oxidation reaction of ethanol and oxygen is given as;
CH₃CH₂OH + O₂ -----------> H₂O + CH₃COOH
Molecular mass of ethanol;
CH₃CH₂OH = (12) + (3 x 1) + (12) + (2 x 1) + (16) + (1) = 46 g/mol
Molecular mass of water;
H₂O = (2 x 1) + (16) = 18 g/mol
From the reaction above, we can infer the following;
46 g of ethanol ---------> 18 g of water
6.5 g of ethanol ---------?
= (6.5 x 18) / 46
= 2.54 g of water
Thus, the mass of water that is produced by the reaction of 6.5g of ethanol is 2.5 g.
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Calculate the mass of iron(III) oxide (Fe₂O3) that contains a billion (1.0 × 10^9) oxygen atoms.
Be sure your answer has a unit symbol if necessary, and round it to 2 significant digits.
The balanced chemical equation for rusting iron is:
4Fe + 3O2 = 2Fe2O3
If we divide 1.0x10^9 by Avogadro's number, we get the amount of moles of oxygen which is 1.6611x10^-15 moles.
From the chemical equation we know that it takes 3 moles of oxygen to produce 2 moles of iron oxide. So if we multiply the moles of oxygen calculated by 2/3, we can get the moles of iron oxide.
(1.611x10^-15)(2/3) = 1.107419x10^-15 moles of iron oxide.
If we multiply the moles of iron oxide by the molar mass of iron oxide, we get how many grams of iron oxide would be produced by 1 billion oxygen atoms. Which is the same thing as how many grams of iron oxide contain 1 billion oxygen atoms.
(1.107419x10^-15)(159.69) = 1.8x10^-13 grams of Fe2O3
Calculate the average atomic mass of rubidium. Rubidium has two isotopes, 85Rb and 87Rb. 85Rb has an atomic mass of 84.912 amu and occurs at an abundance of 72.17%. 87Rb has an atomic mass of 86.909 amu and occurs at an abundance of 27.83%.
The average atomic mass of rubidium is 85.466 amu.
For calculating the average atomic mass of the Rb, the atomic masses for both isotopes are taken into consideration.
The [tex]^{85}{Rb[/tex] has atomic mass = 84.912 amu
The abundance of [tex]^{85}{Rb[/tex] = 72.17 %
The average atomic mass of [tex]^{85}{Rb[/tex] = 72.17 %
The average atomic mass of [tex]^{85}{Rb[/tex] =[tex]84.912\times\frac{72.17}{100}[/tex]
= 61.28 amu
The [tex]^{85}{Rb[/tex] has atomic mass = 86.909 amu
The abundance of [tex]^{85}{Rb[/tex] = 27.83%
The average atomic mass of [tex]^{85}{Rb[/tex] = [tex]86.909 \times \frac{27.83}{100}[/tex]
= 24.186 amu
The average atomic mass of Rb will be = [tex]^{85}{Rb+ ^{87} Rb[/tex]
= 61.28 + 24.186 amu
= 85.466 amu.
The average atomic mass of rubidium is 85.466 amu.
What are isotopes?Isotopes can be defined as varieties of chemical elements that have the same number of protons and electrons but different numbers of neutrons. In other words, isotopes are varieties of elements that differ in their number of nucleons (the total number of protons and neutrons) due to differences in the total number of neutrons in their nuclei.
The three isotopes of hydrogen
Protium or hydrogen-1. This isotope of hydrogen contains 1 proton, 1 electron and no neutrons. Deuterium or hydrogen-2. This isotope of hydrogen contains 1 proton, 1 electron and 1 neutron. Tritium or hydrogen-3. This isotope of hydrogen contains 1 proton, 1 electron and 2 neutrons. It can also be argued that this isotope of hydrogen is radioactiveTo learn more about isotopes, refer;
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Which of the following statements concerning quantum mechanics is/are true?
1. The behavior of submicroscopic particles can sometimes be described as waves.
2. Quantum mechanics limits us to making statistical statements about the location of an electron in an atom.
3. The uncertainty principle is important only for particles of very small mass, such as the electron.
1. The behavior of submicroscopic particles can sometimes be described as waves - True
2. Quantum mechanics limits us to making statistical statements about the location of an electron in an atom - True
3. The uncertainty principle is important only for particles of very small mass, such as the electron - True
What is quantum mechanics?Quantum mechanics is the branch of science that deals with the particles that we have in the atom. The study of quantum mechanics led us to appreciate the position of the electrons that are found in the atom.
The spear head of the study of quantum approach to the atom was Erwin Schrodinger when he proposed the wave mechanical model of the atom.
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• When dissolved 1.93 g of HNO₂ acid (M.W = 47) and dilute
the volume to 500 ml the H concentration in the solution was
7.63X10³ M, calculate the dissociation constant of K
a?
The dissociation constant of Ka is 7.83 × 10³ .
What does molar mass mean?In chemistry, the molar mass of a chemical compound is determined by dividing its mass by the quantity of the material, or the number of moles in the sample, expressed in moles. A substance's molar mass is a bulk attribute, not a molecular one. Mass per mole is one way to define molar mass. Molar mass is, in other words, the total mass of all the atoms in a substance that makes up a mole. It is quantified in grams per mole.
Molar mass is shown for substances or molecules. The molar mass of a single element or atom would simply be that element's mass represented in atomic mass units.
Mass of HN[tex]O_{2}[/tex] = 1.93g
Volume of solution = 500 ml
[tex]H^{+}[/tex] equilibrium = 7.63 × [tex]10^{3}[/tex] m
Molarity of HN[tex]O_{2}[/tex] = mol [tex]HNO_{2}[/tex] /vol in2
mol [tex]HNO_{2}[/tex]
= mass(g) / molar mass
= 1.93/42.0129 g/mol
= 0.04105
Hence ,
molarity of HNO2
= 0.04105/0.5L
= 0.0821 M
Reaction
HNO2 ⇄ H+ NO2
x = [tex]H^{+[/tex] = 7.63 × [tex]10^{3}[/tex] M
= 0.0821 - 7.63 [tex]10^{3}[/tex]
= 0.0821 - 0.00763
= 0.0745 m
[tex]H^{+}[/tex] = 7.63 × [tex]10^{3}[/tex]
[tex]NO_{2}[/tex] = x = 7.63 × [tex]10^{}[/tex]³
Dissociation of constant ka
ka = [tex]H ^{+} NO_{2} ^{-}[/tex]/ HNO²
=[tex]10^{3}[/tex] × 7.83
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I need help identifying the bonds in each molecule as a polar or nonplolar
Polar molecule : [tex]NH_{3} , HF, H_{2}O, CH_{3}F.[/tex]
Non Polar Molecules : [tex]CH_{4}, BeCl_2[/tex]
What is the difference of nonpolar and Polar Molecules?We refer to something as being polar when it differs at either end. Some molecules also contain positive and negative ends; these are known as polar molecules. Polar objects can both attract and repel one another (opposite charges attract, alike charges repel).It is frequently helpful to look at Lewis structures to establish whether a molecule is polar or nonpolar. Nonpolar compounds are said to be symmetric, which means that all of the sides surrounding the core atom are the same and bound to the same element without any unshared pairs of electrons.To learn more about : Lewis structures
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A student placed a sample of a food coloring that contains a mixture of a blue dye and a red dye at the top of a chromatography column filled with a nonpolar stationary phase. When water is poured through the column, two bands of colors are seen in the column, as shown in the diagram above.
A student collects a sample of the blue dye from the column in a cuvette. Which of the following is least useful to determine the concentration of the sample using a spectrophotometer set at 640nm?
A. The volume of a sample
B. The path length of the cuvette
C. The absorbance of the dye at 640nm
D. The solar absorptivity of the dye at 640nm
Based on the principles of spectrophotometry, the least useful to determine the concentration of the sample using a spectrophotometer set at 640nm is: the volume of a sample; option A.
What is spectrophotometry?Spectrophotometry is an analytical technique that is used to measure the concentration of a solution by measuring how much light the solution absorbs or transmits when a beam of light of a given wavelength is passed through it.
In spectrophotometry, the concentration of a solution is directly proportional to its absorptivity. This implies that the higher the concentration of a solution, the higher the amount of light absorbed by the solution.
The absorptivity of the solution is inversely proportional to the transmissivity of the solution.
The higher the concentration, the lesser the amount of light the solution will transmit.
The factors that are important in calculating the concentration of a solution are:
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Seawater contains roughly 28.0 g of NaCl per liter. How many moles of NaCl is in each liter of seawater?
Answer:
About 0.479 moles
Explanation:
4.50 How many grams of iron(III) sulfide form when 62.0 mL of 0.135 M
iron(III) chloride reacts with 45.0 mL of 0.285 M calcium sulfide?
Answer:
[tex]\small\color{black}\boxed{\colorbox{green}{√ Verified Answer}}[/tex]
A compound is defined as a pure substance that is made up of two or more elements in a fixed ratio by mass.
A molecule is the smallest part of an element or a compound that can exist independently.
is a compound called Calcium sulphide. It is formed by the chemical combination of calcium and sulphur . It represents one molecule of the compound. Each molecule of this solid contains one atom of calcium combined with one atom of sulphur.
..
In the near-vacuum of space, bare metal surfaces on the International Space Station can reach temperatures above 260°C. Why?
A. The side of the station facing the sun receives thermal energy via electromagnetic radiation.
B. As the station travels through space, a few atoms per second impact the surfaces and transfer their energy to them via conduction.
C. The heat is transferred to the surfaces by convection as the station moves through the thin fluid of space.
D. The side of the station facing deep space absorbs thermal energy radiated from all the stars on that side.
In the International Space Station on near-vacuum space, the bare metal surfaces can reach temperatures above 260℃ as the side of the station facing the sun receives thermal energy via electromagnetic radiation (A).
Space is nearly vacuum i.e., it has no air in space. Conduction and convection of heat requires air. As space is nearly vacuum, conduction and convection of heat does not happen on bare metal surface on International Space Station.
The only mode of heat transfer in space is Radiation. The space station surface facing away from sun would be cold as the stars are far away from our solar system to heat them up. Thus, the side of the station facing the sun receives thermal energy via electromagnetic radiation.
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If 150 grams of N2H4 and 200 grams of N2O4 are mixed what is the limiting reactant
Answer: N2O4
Explanation:
N2H4 molecular weight is 32 150g/32 = 4.7 mol
N2O4 Molecular weight is 92 200/92 = 2.2 mol
So the N2O4 has less moles present and will be the limiting reactant.
The electrical charge of the nucleus of an atom is +12. How many electrons does the atom have in its neutral state?
The electrical charge of the nucleus of an atom is +12 then 12 electrons does the atom have in its neutral state
Basic property of matter carried by some elementary particles that governs how the particles are affected by an electric or magnetic field and when a neutral atom gains or loses electrons, it becomes an ion and heavier atoms tend to have more neutrons than protons, but the number of electrons in an atom is always equal to the number of protons and so an atom as a whole is electrically neutral
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What quantity in moles of phosphorus atoms do you have if you have 2.40 × 10²² atoms of phosphorus. (The mass of one mole of phosphorus is 30.97 g.)
Answer:
0.04 mole or 1.23 g
Explanation:
1 mole of P has 6.02 x 10^23 atoms
so quantity in moles of P of 2.40 x 10^22 atoms equal
1 mole x (2.40 x 10^22)/(6.02 x 10^23)
= 0.03986710963 or 0.04 mole
1 mole of P = 6.02 x 10^23 atoms = 30.97 g
2.40 x 10^22 atoms weights
(30.97)(2.40 x 10^22)/(6.02 x 10^23)
= 1.23468438538 or 1.23 g
What is the net ionic equation for Fe(NO3)3+3NaOH=Fe(OH)3+3NaNO3
The three rules for writing net ionic equations are actually quite simple. Consider only breaking up the (aq) substances. Only strong electrolytes should be broken up. Any ions that appear on both sides of the equation should be removed.
What exactly is a net ionic equation?A net ionic equation is defined as an equation that depicts only the molecules or ions that are actively involved in the reaction or those that change. The spectator ions are not present in this equation. First, write and balance the molecular equation, ensuring that all formulas are correct. Then, using all aqueous substances as ions, write the ionic equation. Carry any coefficients through. Finally, remove spectator ions from the equation and write the net ionic equation. The purpose of writing a chemical equation is to express what we believe is going on in a chemical reaction. One of the most useful applications of the principal species concept is in the formulation of net ionic equations.To learn more about net ionic equation, refer to:
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Why doesn’t the brain return back to normal as soon as someone stops taking drugs
The brain does not return to normal as soon as someone stops taking drugs because brain receptors become overwhelmed. Dopamine synthesis is reduced or dopamine receptors are eliminated in the brain.
Why does this happen?Endorphins, which are natural opioids produced by your body, are used to block pain signals.
Peripheral/nociceptive pain is associated with injuries that harm your skin and muscles, such as pinpricks and stove burns.
Pain fibers detect these wounds and transmit the signal to the neurons in your spine and brain, the two structures that make up your central nervous system.
Your pain fibers and central nervous system normally cooperate in a condition. Your brain says "ow" and instructs your body how to respond when someone punches you. Release of stress-relieving chemicals. Your immune system combats the swelling in your injured arm.
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Express the answer to the following calculation with the correct number of significant figures.
-Don't put it into Scientific notation.
Type in a unit - use the symbol/abbreviation (g, not grams)
147.6mm − 0.82mm = _____ in units of ____
The value of the difference of 147.6 mm and 0.82 mm is equal to 146.78 in units of mm.
What is scientific notation?Scientific notation is a method of expressing numbers that are too large or too small to be conveniently written in decimal form. The scientific notation may be referred to as standard index form or scientific form.
This base ten notation is generally used by mathematicians, scientists, and engineers. The scientific notation of nonzero numbers can be written in the form [tex]m \times10^n[/tex] or 'm' times 10 raised to the power of n, where n is an integer.
To calculate the difference of 147.6 mm and 0.82 mm:
147.6mm − 0.82mm = 146.78 in the units of mm
As we know one millimeter is equal to 10⁻³ meters. As mentioned in the question, keep the unit 'mm' which is a millimeter.
Therefore, 147.6mm − 0.82mm = 146.78 in units of mm.
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