Beta minus decay will be obtain in the radio-active isotope of Fe-26 power 59.
Whenever there are too many protons or even neutrons in a nucleus, one of the protons and neutrons will turn into the other, which is known as beta decay. During beta minus decay, a neutron transforms into a proton, electron, as well as antineutrino.
[tex]Fe_{26} ^{59}[/tex] → [tex]Co_{27} ^{59} +\beta_{1} ^{0}[/tex]
It can be seen that after the beta minus decay Fe changes into Co.
In beta decay , decrease in atomic number by one unit Fe atom get converted into Co atom.
Neutron-rich nuclei often decay by producing both an electron and an antineutrino.
Therefore, Beta minus decay will be obtain in the radio-active isotope of Fe-26 power 59.
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Through which conversion is energy released? adp to atp atp to adp nadp to nadph co2 and h2o to c6h12o6 and o2
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Answer:
B) ATP to ADP
Explanation:
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The chemoreceptors located on the tongue for the detection of taste are found in structures called blank______.
The chemoreceptors located on the tongue for the detection of taste are found in structures called taste buds.
What are chemoreceptors?
Receptors that respond to chemicals are known as chemoreceptors. Chemoreception depends primarily on the senses of taste and smell. Chemoreception relies on chemicals that act as signals to regulate cell function, without the chemical necessarily being taken into the cell for metabolic purposes.What are taste buds or taste receptors?
Taste receptors are confined to the oral cavity. They are most abundant on the tongue but also occur on the palate and epiglottis and in the upper part of the oesophagus.The taste receptor cells, with which incoming chemicals interact to produce electrical signals, occur in groups of 50–150. Each of these groups forms a taste bud. On the tongue, taste buds are grouped together into taste papillae. On average, the human tongue has 2,000–8,000 taste buds, implying that there are hundreds of thousands of receptor cells.To learn more about taste buds: https://brainly.com/question/8624931
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A student weighs out 0. 0422 g of magnesium metal. The magnesium metal is reacted with excess hydrochloric acid to produce hydrogen gas. A sample of hydrogen gas is collected over water in a eudiometer at 32. 0°c. The volume of collected gas is 43. 9 ml and the atmospheric pressure is 832 mmhg. Using the experimentally collected data, calculate r and the percent error.
The R was found to be = 0.6711 L atm/mol.K
The percent error was found to be =18.22 %
How come magnesium is a metal?The three elements that form magnesium a metal are as follows: It effectively conducts electricity. An electropositive element is magnesium. Magnesium has a relatively low ionization enthalpy.
Where can one find magnesium metal?In the crust of the planet, magnesium is the seventh most prevalent element. It is found in huge amounts as magnesite, dolomite, and other minerals but does not naturally occur uncombined.
What applications does magnesium have?Magnesium supports muscle and neuron function as well as energy synthesis in the body, among many other vital functions. Typically, low magnesium levels don't result in any symptoms. On the other hand, persistently low levels can raise your risk of osteoporosis, type 2 diabetes, high blood pressure, and heart disease.learn more about Magnesium here
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If an aluminum manufacturer does not bear the entire cost of the smoke it emits, it will.
If an aluminum manufacturer does not bear the entire cost of the smoke it emits, it will.
release more smoke than what is socially acceptable.
What is smoke?Smoke is a mixture of airborne gases and particulates released during the combustion or pyrolysis of a substance, along with the amount of air entrained or otherwise mixed into the mass. It is frequently a waste product of fires, such as those caused by stoves, candles, internal combustion engines, oil lamps, and fireplaces, but it can also be used for other purposes, such as fumigation, communication, military defensive and offensive capabilities, cooking, or smoking (tobacco, cannabis, etc.). It is utilized in ceremonies when sage, resin, or incense are burned to create a scent for occult or spiritual purposes. It can also function as a preservative and flavor.
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Arrange the procedural steps, from start to finish, that are required for the correct use of an automatic micropipettor.
Steps that are required for the correct use of an automatic micropipettor -
1. ensure that the pipette is adjusted to discharge the proper V
2. depress the knob until you reach the point of first resistance.
3. dip the tip of the pipette into the solution
4. gradually depress the plunger to suck solution into the tip
5. Remove the tip from the solution and put it on the inside wall of the container into which the solution to be dispersed.
6. again depress the knob to the first point of resistance
7. After a brief pause, depress the knob as far as it will go.
What is the benefit of an automated pipette?Pipettes that are automated can eliminate the need for manual work and provide a variety of benefits. The most obvious benefit is increased throughput, since automation frees up time and effort for other activities. Another advantage is increased repeatability.
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What is the correct reading of the temperature in the pictured thermometer? make sure to report your reading with the appropriate significant figures.
36°C
The correct reading of the temperature in the pictured thermometer is 36°C.
What is a thermometer?Thermometer is a device that measures temperature. Specifically speaking one that has a sensor placed inside a metal probe that measures temperature changes by changing electrical resistance.How does a thermometer work?In a mercury thermometer, a glass tube is filled with mercury, and the tube is labelled with a standard temperature scale. The mercury expands and contracts as the temperature changes, allowing the temperature to be read from the scale. The temperatures of the body, liquid, and vapor can all be determined with mercury thermometers.What are thermometers and how do they differ?Thermometer Types:laboratory thermometer electronic thermometer IR thermometer for the ears. mercury-filled thermometerExactly who made the thermometer?The thermometer as a temperature measurement tool is usually acknowledged to have been created by the Italian Santorio Santorio (1561-1636), who is credited with adding a scale to an air thermoscope at least as early as 1612.To learn more about thermometer visit:
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Apples tend to be more acidic than cherries. that means that cherries then to have a
Answer:
Higher pH (more alkaline)
Explanation:
The pH scale measures on a scale of 0 to 14 the acidity or basicness of whatever is being tested.
The lower the pH, the more acidic it will be. Acids are scaled as being anything having a pH of lower than 7.
The higher the pH, the more alkaline (or basic) it will be. Bases are scaled as being anything having a pH of higher than 7.
Substances that are at a pH of 7 are considered neutral, like water (H2O)
An increase in blood CO2 or a decrease in blood ph will lead to which change in respiration?
A 1. 477 g sample of khp required 30. 27 ml of naoh solution to reach endpoint. Calculate the molarity of the NaOH.
The molarity of the NaOH is 0.238 M when 1. 477 g sample of KHP required 30. 27 ml of NaOH solution to reach endpoint.
Calculation ,
Mass of KHP = 1. 477 g
Number of moles of KHP = given mass / molar mass of KHP
Number of moles of KHP = 1. 477 g × 1 mol / 204.23 g KHP = 0.007 mol
Since , one mole KHP requires one mole of NaOH .
Number of moles of NaOH required by 0.007 mol of KHP = 0.007 mol
Molarity of NaOH = number of moles / volume in lit = 0.007mol/0.03027ml = 0.238 M
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What volume of hydrogen (in l) is produced from 3.143 mol of hydrochloric acid at stp
Volume of hydrogen (in l) is produced is 35.20 L
Given:
moles of hcl = 3.143 mol
To Find:
volume of hydrogen
Solution:
2HCl → H2 + Cl2
STP 2*22.4L 22.4L 22.4L
2 mol 1 mol 1 mol
73 gm 2gm 35.5gm
here we can see that 2 mol hcl is producing 22.4 litres of hydrogen
So, 3.143 mol hcl will produce hydrogen = 22.4/2*3.143 = 35.20 litres
Volume of hydrogen (in l) is produced is 35.20 L
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The combustion of 1 mole of co according to the reaction co(g) ½o 2 (g) co 2 (g) 67.6 kcal gives off how much heat?
Heat change at constant volume for the combustion of carbon monoxide = -67.71 Kcal
CO(g) + 1/2O2(g) ⟶ CO2(g)
From the above reaction,
∆ng = nP - nR = 1 - ( 1/2 + 1 )
∆ng = - 1/2
Temperature (T) = 17°C (17+ 273) K = 290K (Given)
Now from first law of thermodynamics,
∆H = ∆E + ∆ng RT
ΔΗ = -67.71 + (-1/2) x 2 x 10^-3 x 290
∆H = -67.71 - 0.29 = -68 Kcal
Hence the heat of reaction at constant pressure will be -68 Kcal
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What molarity should the stock solution be if you want to dilute 25. 0 ml to 2. 00 l and have the final concentration be 0. 103 m?
The stock solution should have a molarity of 8.24M.
Proportional sets. C₁V₁=C₂V₂ is used to calculate an unknown quantity where two solutions/mixtures are proportional.
It follows that the initial concentration times the initial volume will equal the final concentration times the final volume because the sum does not vary.
Using the formula as follows;
C₁V₁ = C₂V₂
Where;
C₁ = initial concentration of the stock solution
C₂ = final concentration of the stock solution
V₁ = initial volume of the stock solution
V₂ = final volume of the stock solution
According to the information given in this question,
V₁ = 25mL = 25/1000 = 0.025L
V₂ = 2L
C₁ =?
C₂ = 0.103M
Using the formula; C₁V₁ = C₂V₂
C₁ = C₂V₂/V₁
C₁ = (0.103 × 2) / 0.025
C₁ = 0.206 / 0.025
C₁ = 8.24 M
Therefore, the stock solution should have a molarity of 8.24M.
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A. what are two common by-products of sugar fermentation? how is phenol-red broth designed to measure both?
The two common by-products of sugar fermentation are acid ( like lactic acid) or hydrogen and gas(carbon dioxide). During fermentation , any gas that is produced by the microbes get trapped in the inverted Durham tube and bubbles will appear.
The acid production is indicated by the color change of medium from normal red to yellow and remains red for no acid production.
The respiration process can be aerobic or anaerobic. In both process glycolysis, which occur in absence of oxygen is common. In this process one molecule of glucose is converted into two molecules of pyruvic acid . Gycolysis occur in cell cytoplasm. In anaerobic respiration is a cytosolic process, which results in production of lactic acid ( lactic acid fermentation) or ethanol and carbon dioxide (alcoholic fermentation)
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A mutation has occurred directly after the start codon within an mrna sequence. which provided mutation will have the most serious effect on the resulting polypeptide?
A mutation has occurred directly after the start codon within an mrna sequence. A deletion of two nucleotide provided mutation will have the most serious effect on the resulting polypeptide.
What a codon in mRNA sequence provides?The first codon in mRNA transcript is known as start codon.
Start codon provides initiation signals for the ribosomes to start the process of translation during which formation of polypeptide chain takes place.
What is frameshift mutation?It arises when the normal sequence of codon is disrupted by the insertion or deletion of one or more nucleotides, provided that the no. of nucleotide which is added or removed is not multiple of three.
Thus, we concluded that the deletion of two nucleotide make frameshift mutation.
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At 2000 K the partial pressures of an equilibrium mixture of H2S, H2, and S are 0.0151 , 0.0472 , and 0.0352 atm, respectively. Calculate the value of the equilibrium constant Kp at 2000 K.
At 2000 K, if the partial pressures of an equilibrium mixture of H2S, H2, and S are 0.0151 , 0.0472 , and 0.0352 atm, respectively, then the value of the equilibrium constant Kp at 2000 K is 9.089.
What is partial pressure?The pressure that is exerted by one among the mixture of gases if it occupies the same volume on its own is known as Partial pressure.
As we know that,
Kp is the constant of a certain reaction at equilibrium.
For the given chemical reaction:
H2 +S -------H2S
The expression of Kp for above equation follows:
Kp = p(H2S) /{p(H2) ×p(S)}
where,
p(H2S) is the partial pressure of H2S = 0.0151atm
p(H2) is the partial pressure of H2 = 0.0472atm
p(S) is the partial pressure of S = 0.0352 atm
Kp can be calculated as:Kp = 0.0151/(0.0472 × 0.0352)
Kp = 0.0151/0.00166144
Kp = 9.089
Thus, we find that the value of equilibrium constant Kp at 2000K is 9.089.
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A student compares the boiling point of substances having different intermolecular forces. which dependent variable did the student most likely use? compounds made of either ions, atoms, or molecules type of source used to heat up the substances type of container used for the substances boiling points of various substances
A student compares the boiling point of substances having different intermolecular forces. Boiling points of various substances is the dependent variable that student most likely use.
Does the nature of intermolecular forces present in different substance affect their boiling points?The boiling point of a substance is proportional to the strength of its intermolecular forces, the higher the boiling point, the stronger the intermolecular forces. We can compare the strengths of intermolecular forces by comparing the boiling points of different substances.
What properties are affected by intermolecular forces?Intermolecular forces are measured by boiling points.
Intermolecular forces increase as bond polarization increases.
Ionic > hydrogen bonding > dipole dipole > dispersion is the order of the strength of intermolecular forces (and thus their impact on boiling points).
How can you determine strong and weak intermolecular forces?Substances with strong intermolecular forces are very attracted to one another and are held together tightly. These substances require a great deal of energy to separate, whereas substances with weak intermolecular forces are held together very loosely and have weak interactions.
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How many grams of CO would be required to generate 635 g CO2
The amount of CO that would be required to generate 635 g of CO2 will be 404.14 g
Stoichiometric problemFirst, let us get the equation of the reaction:
[tex]2CO + O_2 -- > 2CO_2[/tex]
From the equation, we can see that the mole ratio of CO to that of CO2 is 1:1.
635 g of CO2 is to be generated.
Mole of 635 g CO2 = mass/molar mass = 635/44.01 = 14.43 moles
Thus, the equivalent mole of CO required will also be 14.43 moles.
Mass of 14.43 moles CO = moles x molar mass = 14.43 x 28.01 = 404.14 g
Hence, 404.14 g of CO will be required to produce 635 g of CO2
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A combustion reaction will always be associated with a change in entropy that will be:_________
A combustion reaction will always be associated with a change in entropy that will be positive.
What is entropy ?The entropy of a system is the measurement of the disorder of the system which happens in the thermodynamic reaction.
During association the value of entropy will be positive and during dissociation the value will be negative.
During association the number of molecule increases due to which the entropy of the combustion increases and the value will be positive .
Therefore , combustion reaction will always be associated with a change in entropy that will be positive.
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Olive oil and butter both contain fats; however, olive oil is liquid at room temperature and butter is solid. Why?.
This is why even though Olive oil and butter both contain fats, olive oil is liquid at room temperature and butter is solid.
Since saturated fat makes up the majority of butter, it is solid at room temperature. Olive oil is an unsaturated fat since it is liquid at room temperature. Through hydrogenation processes, an unsaturated fat can be converted to a saturated fat.What are saturated fats?a form of fat believed to be less healthy in the diet than unsaturated fat because it contains a higher percentage of fatty acid molecules lacking double bonds.butter, ghee, suet, lard, coconut oil and palm oil, cakes, biscuits, fatty cuts of meat are some of the examples.What are unsaturated fats?a form of fat that is thought to be healthier in the diet than saturated fat because it contains a high percentage of fatty acid molecules with at least one double bond.Olive, peanut, and canola oils, Avocados, Nuts such as almonds, hazelnuts, and pecans, Seeds such as pumpkin and sesame seeds are some of the examples.To learn more about fats visit:
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What are the three forms of water found on Earth?
Answer:
By form if you mean states then it's,
Water is found on Earth as drinking water (liquid), water vapour (gas) and ice (solid).
What mass of hydrogen is produced when 192 g of magnesium is reacted with hydrochloric acid?
Answer:
Mg+2HCL-Magnesium Chloride +Hygrogen
[tex] > [/tex]
Explanation:
N.O of moles=Mass\Molar Mass
192÷24=8
1:1
8×2=16
[tex]\huge\underline{\underline{\boxed{\mathbb {SOLUTION:}}}}[/tex]
[tex]\longrightarrow \sf{Mg+2HCI \Longrightarrow MgCl_2+H_2}[/tex]
[tex]\longrightarrow \sf{molMg=129gMg \times \dfrac{1molMg}{24.305gMg=} }[/tex]
[tex]\small \sf{\longrightarrow molH_2=7.90molMg \times \dfrac{1molH_2}{1molMg}= 7.90molH_2 }[/tex]
[tex]\small \sf{\longrightarrow massH_2=7.90H_2 \times \dfrac{2.016g}{1molH_2}= 7.90molH_2= 15.9 \: gH_2}[/tex]
[tex]\huge\underline{\underline{\boxed{\mathbb {ANSWER:}}}}[/tex]
[tex] \small\bm{ The \: mass \: of \:H_2 \: produce \: will \: be \: 15.9 }[/tex] [tex]\bm{grams.}[/tex]
Formic acid, which is a component of insect venom, has a ka = 1. 8 ✕ 10-4. what is the [h3o ] in a solution that is initially 0. 10 m formic acid, hcooh?
The [H3O+ ] in a solution that is initially 0. 10 m formic acid, hcooh is 0.00415M.
What is formic acid?Formic acid is defined as the simplest carboxalic acid which contain one carbon atom. It is weak acid.
Another name of formic acid is methanoic acid. It is used as the preservation and antibacterial agent in livestock feed.Exposure to Formic Acid can cause headache, dizziness, nausea and vomiting. individuals, may cause a skin allergy.Thus we concluded from the image that the
concentration of [H30+] is 0.00413M.
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Choosing ecosystem to draw in your drawing include the following
10 different biotic factors five
5 different abiotic factors
identify all 15 factors and label whether they are biotic or abiotic factors
your pictures should make sense there shouldn't be a polar bear in a sand desert
color your picture
be creative
Abiotic factors are the physical and chemical compounds of an environment, being able to influence the living beings present in the ecosystem so that plants and animals have to adapt to survive and develop.
What are biotic and abiotic factors?The biotic components are all the living things that live in a certain place, while the abiotic components are all the physical, chemical and geological factors of the environment such as
waterlightsoilhumiditytemperaturenutrientsWith this information, we can conclude that An abiotic factor is a non-living part of an ecosystem that shapes its environment.
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5 A farmer stopped maintaining a field that was
once used to grow crops. Over time, the field
eventually became a forest. These changes best
illustrate the process of
(1) ecological succession
(2) nutrient recycling
(3) decomposition
(4) competition
Answer: nutrient
Explanation:
In an ecosystem like where a farmer stopped maintaining a field that was once used to grow crops. Over time, the field eventually became a forest. These changes best illustrate the process of nutrient recycling.
What is an ecosystem?
Ecosystem is defined as a system which consists 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 nutrient cycles and flow of energy.
Energy enters the system 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 system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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Typically, amides will hydrolyze under ________ conditions than esters. stronger milder more saline less vigorous more dilute.
Typically, amides will hydrolyze under milder conditions than esters.
So, second option is correct one.
In acidic medium, amide interact with the water molecules to give a carboxylic aid and salt of ammonia or amine salt whereas in a basic medium, amides interacts with water molecules to give carboxylic aid and salt of ammonia or amine salt. An amides will hydrolyze under milder conditions because amide is least reactive than ester. The electronegativiy of nitrogen is less than oxygen. So, nitrogen transfer more electron cloud than oxygen towards carbonyl carbon. So, carbonyl group of amide hydrolysis in milder condition than ester.
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Determine the end (final) value of n in a hydrogen atom transition, if the electron starts in and the atom emits a photon of light with a wavelength of 486 nm.
The end (final) value of n in a hydrogen atom transition is 2.
Using the Rydberg formula ;
1/lamda = R ( 1/[tex]n_{f} ^{2}[/tex] - 1/[tex]n_{i} ^{2}[/tex] )
where , lamda = wavelength = 486 nm = 486 ×[tex]10^{-9} m[/tex]
[tex]n_{f}[/tex] in a hydrogen atom transition = final state = ?
[tex]n_{i}[/tex] in a hydrogen atom transition = initial state = 4
R = Rydberg constant = 1.097 ×[tex]10^{7} m^{-1}[/tex]
1/ 486 ×[tex]10^{-9} m[/tex] = 1.097 ×[tex]10^{7} m^{-1}[/tex] ( 1/[tex]n_{f} ^{2}[/tex] - 1/[tex]4^{2}[/tex] )
[tex]n_{f}[/tex] = 2
Missing parts :
Determine the end (final) value of n in a hydrogen atom transition, if the electron starts in n=4 and the atom emits a photon of light with a wavelength of 486 nm.
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Two significance of melting point
The significance of melting points are
it gives us a idea about inter molecular force which binds the particles together.at melting point the solid and liquid states exist in equilibrium.What is melting point?The melting point is the temperature at which a given substance change its physical state from solid to liquid. At this point solids and liquids exist at equilibrium. Melting point of a substance depends on pressure. The melting point of ice increases when pressure decreases. Melting point of a substance decreases by the presence of impurities in it. so you increase or decrease the melting point on any substance by adding more impurities. Ionic bonds, shape and size of molecules are some other factors that affect the melting point.
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Consider the tetrahedral intermediate and the two leaving groups, methoxide and amide anion. does this reaction favor reactants or products?
The reaction of tetrahedral intermediate and the two leaving groups, methoxide and amide anion favour product.
What is leaving group?A leaving group is a group of atoms or an atom which is able to break away from a molecule as a stable species or with a lone pair, breaking the bond between the molecule and itself.
What is intermediate?A stage is come before forming product. This stage is termed as transition stage and the reactant at this stage is termed as intermediate.
According to Le Châtelier's Principle, a reactions always tend towards the equilibrium, the reaction produces more products from the excess reactant, that's why it causing the system to shift to the left which allows the system to reach equilibrium.
Due to this reason, this reaction shift towards product.
Thus, we concluded that the reaction of tetrahedral intermediate and the two leaving groups, methoxide and amide anion favour product.
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What can the presence of suffixes such as -ite,-ate,or -de in a chemical name indicate?
Answer: Most polyatomic ions are -ate, related ions that have 1 fewer oxygen atom are -ite (must have at least 1 oxygen tho) and nonmetals are ide.
Explanation:
There are TWO isotopes of chlorine. Under normal conditions, chlorine exists as diatomic molecule, Cl₂. The mass of the Cl₂ molecule is the sum of masses of the two atoms in the molecule. The mass spectrum of Cl₂ has three peaks, as shown below. From this data, what is the mass of the heavier isotope of chlorine (in amu)?
Peak 1- 69.938 amu
Peak 2- 71.935 amu
Peak 3- 73.932 amu
The the mass of the heavier isotope of chlorine (in amu) is 73.932 amu.
What are isotopes?The term isotopes refers atoms that have the same atomic number but different mass number. We must know that all these atoms belong to the same element an differ only in the number of neutrons present in the atom of the element. Hence isotopes are different atoms of the same element hence they have the same chemical properties or reactivity. The mass spectrum is able to show the masses of each of the isotopes according to their order of relative abundance in nature.
Looking at the peaks, we know that the heaviest isotope is the one whose mass will have the highest peak as shown in the mass spectrum of the element as shown. Thus, the the mass of the heavier isotope of chlorine (in amu) is 73.932 amu. The mass spectrum of element also shows this fact.
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