If you had a solution containing a mixture of magnesium, strontium, and barium, then we could separate these three elements using hydrogen sulphide, chromic acid and sulphuric acid.
To separate three elements from the solution, first we need to remove the magnesium element by adding hydrogen sulphide(H₂S) in the solution. It forms magnesium sulphide(MgS) as a precipitate and remaining ions are used for further separation.
To separate the barium element, we need to add chromic acid in the solution, which precipitate the barium chromate(BaCrO₄) from the solution.
In the remaining solution of strontium, we need to add sulphuric acid, which precipitates out the strontium sulphate(SrSO₄) as a product.
Therefore, to separate magnesium, strontium, and barium, we need to use hydrogen sulphide, chromic acid and sulphuric acid.
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chemcollective what is the mass of agno3 that is present in 'solution 3'? (please use three significant figures for your answer)
The molar mass of silver nitrate is 169.9.
What is molar mass?
The molar mass of a chemical compound is determined by dividing its mass by the quantity of that compound, expressed as the number of moles in the sample, measured in moles. The molar mass of a substance is a bulk attribute rather than a molecular one. The compound's molar mass is an average over numerous samples, which frequently have different masses because of isotopes. A terrestrial average and a function of the relative abundance of the isotopes of the constituent atoms on Earth, the molar mass is most frequently calculated using the standard atomic weights. It is appropriate to convert between a substance's mass and an amount using the molar mass.Particularly for molecular compounds, the terms molecular mass and formula mass are frequently used as synonyms for molar mass; however, the definitions given by the most reliable sources differ.To know more about molar mass, click the link given below:
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what atomic or hybrid orbital on the central n atom makes up the sigma bond between this n and an outer h atom in ammonia, nh3 ?
A N sp3 hybrid orbital and a H 1s orbital combine to generate each N-H - sigma bonding orbital, which has two electrons.
What is a sigma bond?Atomic orbitals and/or hybrid orbitals overlapping along the bond axis to produce a covalent bond known as a sigma bond.Sigma bonds can form when two overlapping s atomic orbitals, one s orbital and one p orbital, or two p orbitals overlap. This is illustrated in the diagram above. Sigma bonding can also result from the overlap of two hybridized atomic orbitals, such as sp-sp.The overlapping of atomic orbitals distinguishes sigma and pi bonds from other varieties of covalent connections. Atomic orbitals colliding together create covalent bonds.In contrast to pi bonds, which are created by the lateral overlapping of two atomic orbitals, sigma bonds are created when atomic orbitals overlap head-to-head.To learn more about sigma bond refer to :
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the formal charge of an atom reflects the electron count of the particular atom within the molecule, and can be determined using the following formula:
Formal charge = valence electrons - Number of non bonding electrons - number of shared electrons ÷ 2
A formal charge (F.C.) is the charge assigned to an atom in a molecule in the covalent view of bonding, assuming that electrons in all chemical bonds are shared equally between the atoms, regardless of their relative electronegativity.
The formal charge is generally the difference between an atom's number of valence electrons in its neutral free state and the number allocated to that atom in a Lewis dot structure.
When choosing the optimum Lewis structure or also called as the predominant resonance structure for a molecule, it is important to keep the formal charge on each of the atoms as low as feasible.
The following equation can be used to compute the formal charge of an atom in a molecule:
Formal charge = valence electrons - Number of non bonding electrons - number of shared electrons ÷ 2
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What does hydrogen need to have a full outer shell?.
Hydrogen outer shell full with only two electrons, to have completely filled electronic configuration.
Hydrogen has atomic number of 2 i.e., it has total of 2 electrons. As per the rule maximum of 2 electrons can be filled in first energy shell.
In case of Hydrogen both the electrons are present in n = 1 shell, here n is principle quantum number. It has completely filled electronic configuration and also the most stable electronic configuration.
Valence electrons can be defined as the number of electrons present in the outermost shell of the atom of a chemical element.
Therefore, hydrogen would require just a single valence electron to have full outer shell and it has only one proton and one electron in its nucleus.
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which of the following elements would have the greatest difference between the first and the second ionization energy?
By losing a sixth electron, the noble gas electronic configuration is produced. Therefore, the first and second ionization energies do not differ significantly.
Which element's initial and second ionization energies would differ most from one another?Alkali metals achieve stable noble gas configuration after first ionization, which results in a high difference between the first and second ionization energies. The energy needed to remove an electron from a neutral atom when it is in the gaseous form is known as the first ionization energy.This attraction is further diminished in potassium because the electron is more susceptible to shielding due to the presence of additional shells. As a result, the ionization energy is reduced since less energy is required to remove the outermost electron.There is a significant difference between the first and second ionization energy because after removing one electron, the second electron must be removed from a different shell with an octet configuration.To learn more about ionization refer to
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2. Describe at least three properties of elements in groups 1, 17, and 18.
Group 1 in periodic table is called alkali metals which are metals containing sodium, potassium, lithium etc. Elements of 17th group are halogens and elements of 18th group are noble gases.
What are group in periodic table?
Groups in periodic table are vertical columns containing elements of same number of valence electrons and similar chemical and physical properties.
Group 1 is alkali metals with one valence electron containing the elements sodium, potassium, lithium and cesium and francium. They are metals with high thermal and electrical conductivity.
Group 17 are halogens containing highly electronegative elements chlorine, fluorine, bromine, iodine and acetatin. They are non-metals with high reactivity. Halogens have high ionization energy.
Group 18 is noble gases, helium, argon, neon, krypton, xenon and radon all are non metals with highly stable electronic configuration. They are inert at normal conditions and thus they are called inert gases. They rarely form compounds.
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Atoms of different element can not have same atomic number because only same type of atoms combine to form element. Atoms belonging to different element can have different atomic number.
What is element?Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same. Two or more than two atoms with different physical or chemical properties can not combine together to form an element.
Elements that belongs to group 1 are metals. Group 1 elements have valency 1. Elements that belong to group 17 are called halogens and has high electronegativity. Elements belonging to group 18 are noble gases, they are not at all reactive.
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When balancing a redox reaction, begin by separating thereaction into _______________ (reactants and products, halfreactions, or elements). Balance each of these in terms of______________ (stoichiometry, number of moles, or atoms and charge). Multiply by some factor if necessary so that the number of_______________ (elements, electrons, or moles) appearing in both is the same. Add these together, canceling out any terms that appear on both sides of the final equation.
To solve such this we must know the concept of redox chemical reaction and their balancing in acidic, neutral and basic medium. The blanks should be filled with half reactions, atom and charge and electrons.
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.
When balancing a redox reaction, begin by separating the reaction into half reactions (reactants and products, half reactions, or elements). Balance each of these in terms of atom and charge (stoichiometry, number of moles, or atoms and charge). Multiply by some factor if necessary so that the number of electrons (elements, electrons, or moles) appearing in both is the same. Add these together, canceling out any terms that appear on both sides of the final equation.
Therefore, the blanks should be filled with half reactions, atom and charge and electrons.
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(nh4)2s is a strong electrolyte. determine the concentration of each of the individual ions in a 0.450 m (nh4)2s solution.
There are 2 NH4 in the equation therefore just multiply the molarity of the total solution by 2. since there is only 1S in the equation then you just keep the same molarity.
Hydrofluoric acid is a weak acid and does not completely dissociate in water. For this reason, only a few moles of ions are available in aqueous solutions, making them weak electrolytes. Since water has a lower pKa than ammonia, it is a stronger acid than ammonia and donates protons to ammonia bases.
Ammonium hydroxide can be represented by its chemical formula NH4OH. In water, ammonium hydroxide partially dissociates into ammonium and hydroxide ions. As we saw with acetic acid, ammonium hydroxide is a weak electrolyte because its ions can move freely and it conducts electricity to some extent.
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a calorimeter is used to measure the enthalpy of a reaction. label the system and the surroundings. please note that you can leave a label blank if it does not fit either definition.
When the calorimeter is used to measure the enthalpy of a reaction, the system = contents and surroundings = calorimeter + air.
What is a calorimeter?A calorimeter is a device used to measure the heat of chemical reactions or physical changes, as well as heat capacity. Among the most common types are differential scanning calorimeters, isothermal micro calorimeters, titration calorimeters, and accelerated rate calorimeters.
The system is the contents, and the calorimeter and air are the surroundings. Because heat can be absorbed or evolved when contents react. If heat is produced, the temperature of the calorimeter rises. Using this temperature change and the calorimeter's heat capacity, we can calculate the enthalpy of the reaction.
If the reaction absorbs heat, the temperature of the calorimeter falls, and we can calculate the enthalphy of the reaction. As a result, the system exchanges heat with the calorimeter and the surrounding air.
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Can electromagnetic waves transfer energy without an electric field?.
No, the electromagnetic waves transfer energy without an electric field since the transfer of energy by electromagnetic waves is called electromagnetic radiation.
What do you mean by Electromagnetic waves?The oscillations here between electrostatic potential and a magnetic field produce waves known as electromagnetic waves, or EM waves. In other words, magnetism fields oscillate to form electromagnetic (EM) waves.
Electromagnetic waves, where are they?In contrast to wave propagation, electromagnetism waves can travel without a medium. This implies that microwaves can pass not only through stationary surfaces like air and rock but also through empty space.
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You are working on a science experiment. The protocol for recording science experiments is to use passive voice in the records. With that in mind, which of these choices works best as an opening sentence?.
A good opening statement in passive voice would be 3 ounces of potassium cyanide were added to 1/2 cup of skim milk.
The passive voice is used in scientific writing to emphasize the object or the experiment being studied, rather than the subject performing the experiment. This allows the reader to focus on the experiment itself, rather than the person performing the experiment.
In writing experiments, passive voice statements are used to describe the process that was followed to conduct the experiment, the results that were obtained, and the conclusions that were drawn.
For example, a passive voice statement might read: "The experiment was conducted using a specific methodology," rather than "I conducted the experiment using a specific methodology."
The use of the passive voice in scientific writing also allows the writer to remain unbiased and objective. By not referring to the subject performing the experiment, the writer is able to focus on the experiment itself.
This can help to ensure that the results and conclusions are based solely on the data that was collected, rather than any preconceived notions or biases that the writer might have.
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Was Teddy Roosevelt a Progressive reformer?.
Teddy Roosevelt is a Progressive reformer.
The teddy Roosevelt is a progressive reformer and earned the reputation such as the trust buster. teddy Roosevelt was an American known as the trust buster. the teddy Roosevelt when the president William mckinley was the assassinated in 1901. between the 1901 and 1919, the presidents teddy roosvelt , william howard taft and the woodrow wison launched the series of the progressive reforms from the white house that affected the entire nation. he wanted the Americans to have the square deal that is used to describe the progressive reforms.
Thus, Teddy Roosevelt is a Progressive reformer.
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decomposition of ni3 produces nitrogen gas and iodine. how many grams of the reactant would be required to react completely to give 2.29 g of the iodine?
Decomposition of ni3 produces nitrogen gas and iodine. The mass of the reactant would be required to react completely to give 2.29 g of the iodine is 2.37g.
To find out the mass of reactant, first write balanced reaction. The balanced reaction for decomposition of NI₃ is
2NI₃→2N+3I₂
The atomic mass of iodine is 254 g/mol. Hence, the moles of iodine(I₂) is
moles of I₂=2.29 g×(1 mol/254 g)
moles of I₂=0.009016 mol
The mol to mol ratio between I₂ and NI₃ is 3:2. Hence, moles of NI₃ reacted is
0.009016 mol I₂×(2 mol NI₃/3 mol I₂)
=(0.009016×2 mol NI₃/3)
=0.018032 mol NI₃/3
=0.006011 mol NI₃
The molar mass of NI₃ is 395 g/mol. Hence mass of NI₃ reacted is
0.006011 mol NI₃×(395 g NI₃/1 mol NI₃)
=2.3743 g NI₃=2.37g NI₃
Therefore, the mass of NI₃ reacted completely is 2.37g.
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it is common to represent an element using its atomic symbol, which is an abbreviation based on its name. the number, given the symbol z, is written as a left subscript while the number, given the symbol a, is written as a left superscript next to the atomic symbol.
The atomic number given the symbol z is written as a left subscript while the mass number given the symbol a is written as a left superscript next to the atomic symbol.
The atomic number or atomic number of a chemical element is the number of electric charges in the nucleus. For normal atomic nuclei, this equals the number of protons or the number of protons found in the nucleus of each atom of that element. Chemical symbols are abbreviations used to denote elements or atoms of elements.
Element symbols are abbreviations of chemical names. For example, the symbol for hydrogen is H and magnesium is Mg. A chemical symbol is an abbreviation or short representation of the name of a chemical element, commonly assigned in relation to its Latin name. All natural elements have one or two-letter symbols. Some man-made elements have temporary three-letter symbols.
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What allylic alcohol and det isomer are needed to make the following chiral epoxide using a sharpless asymmetric epoxidation reaction? be sure to answer all parts. Draw the allylic alcohol using a skeletal structure.
Propenal and propanone allylic alcohol are the two constitutional isomers that contain carbon-oxygen double bonds.
What exactly are isomers?
Isomers have chemical structures that are nearly identical but have different spatial arrangements.
A double bond connects the carbon and oxygen atoms in this isomer. Because both molecules contain allylic alcohol three carbon atoms, they can be referred to as prop. Propenal and propanone are names derived from the presence of an aldehyde and a ketone functional group.
Propenal and propanone are the two constitutional isomers with carbon-oxygen double bonds.
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activity of 19.8 ci when it's manufactured and contain isotopes with a half-life of 12.0 y, what will its activity in ci be 5.4 y later?
The activity in ci of the elements with 12 years half-life is 14.49 ci.
We need to know about the half-life of the radioactive elements to solve this problem. The radioactive element will decay over time and follow the equation
N = No( 1 / 2 )^( t / t'' )
where N is the final quantity, No is the initial quantity, λ is the decaying constant, t is time and t'' is the half-life of a radioactive element.
From the question above, we know that
t'' = 12 years
No = 19.8 ci
t = 5.4 years
Calculate the remaining mass
N = No . ( 1 / 2 )^( t / t'' )
N = 19.8 . ( 1 / 2 )^( 5 / 12 )
N = 19.8 . 0.73
N = 14.49 ci
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which of the following solid substance(s) is a covalent network solid?select an answer and submit. for keyboard navigation, use the up/down arrow keys to select an answer.asio 2bh 2ockbryour answerdk
C is the choice that is a crystalline solid with a covalent network (diamond).
SOLID—does it imply good?Solid may seem like a straightforward term at first appearance, but it actually has a variety of meanings. A reliable buddy is trustworthy. It was pretty excellent, but not amazing, if you deliver a strong performance. Likewise, if you succeed in winning convincingly, you do it by a sizable but not overwhelming margin.
A SOLID object is what?A solid is distinguished by its reinforcing and resilience to external forces. A solid substance, unlike a liquid, somehow doesn't flow to conform to the form of its container or, like a gas, expand to cover the entire space.
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the half-lives of different radioisotopes are given in the table. radioisotope half-life (min) argon-44 12 lead-196 37 potassium-44 22 indium-117 43 how long would it take, in minutes, for the amount of argon-44 to decrease from 72.0 mg to 9.00
Radioisotope Half-life.
A radionuclide is a nuclide that has excess nuclear electricity, making it unstable. This extra strength can be used in one of 3 methods: emitted from the nucleus as gamma radiation; transferred to one in every one of its electrons to launch it as a conversion electron, or used to create and emit a brand new particle from the nucleus.
Radioisotopes in remedy. Nuclear medicine uses small amounts of radiation to offer statistics about a person's frame and the functioning of specific organs, ongoing biological procedures, or the disordered country of a particular contamination. In maximum instances, statistics is utilized by physicians to make an accurate prognosis.
Radioactive decay is the technique wherein a radioactive atom spontaneously offers off radiation within the shape of energy or debris to reach a more strong state. it's far more important to differentiate between radioactive cloth and the radiation it offers.
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how many kilojoules of heat will be released when exactly 1 mole of manganese, mn, is burned to form mn3o4(s) at standard state conditions?
The amount of heat released is 462.3 kJ
The chemical equation for the reaction of manganese and oxygen to produce manganese (II,III) oxide follows:
We need to calculate the amount heat released for 1 mole of manganese.
To calculate the amount of heat released, we use unitary method:
When 3 moles of manganese is burnt, the amount of heat released is 1387 kJ
So, when 1 mole of manganese is burnt, the amount of heat released will be = (1387 * 1) / 3
= 462.3 kj
Hence, the amount of heat released is 462.3 kJ
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. Two beakers in a laboratory are full of white crystals. One beaker contains sodium chloride, and the
other beaker contains sucrose. The labels have come off the beakers, however, so you are not sure
which is which. A chemistry handbook lists the solubility of sodium chloride in water as 36 g/100 mL at 25°C and the solubility of sucrose in water as 200 g/100 mL at 25°C. Write a procedure that describe how you could safely identify the two chemicals.
Conduction, which means electricity is transmitted through a solution to see if it can carry an electrical current.
What is conduction procedure ?This one focuses on conduction, which is the transmission of electricity through a substance to determine its electrical conductivity. You must understand a few things about how atoms join or bind before we can move on since this affects whether or not they can conduct an electrical current.A material known as an ionic compound is one that has atoms bound together by an ionic connection, in which electrons are transported from one atom to another. In contrast, a covalent bond occurs when two atoms share electrons. One more thing before we move on: when some substances are dissolved in water, electrolytes can be produced. This indicates that the substance has electrical conductivity.Learn more about Conduction refer to :
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3. We say elements cannot be broken down by chemical means. However, elements can be
broken down through nuclear reactions. This has been demonstrated through nuclear fission
and the hydrogen bomb (where the hydrogen atom was split). Consider how this affects the
properties of the element in a nuclear reaction versus a chemical process. How does a
nuclear process differ from a chemical process regarding the ability to "break down an element?
In a nuclear reaction, the composition of the atom is changed due to fission and fusion which results in generation of a new element.
What are nuclear reactions?
There are two types of nuclear reactions which are nuclear fusion and nuclear fission .They involve the combination and disintegration of the element's nucleus respectively.
In nuclear fission, the nucleus of the atom is bombarded with electrons of low energy which splits the nucleus in to two parts .Large amount of energy is released in the process.It is used in nuclear power reactors as it produces large amount of energy.
In nuclear fusion,on the other hand, is a reaction which occurs when two or more atoms combine to form a heavy nucleus.Large amount of energy is released in the process which is greater than that of the energy which is released in nuclear fission process.
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What can be used to identify a chemical reaction as a combustion reaction?.
The reactant oxygen is. What hints may be utilized to determine whether a chemical reaction is a replacement reaction? Two ions that seem to trade places in the reactants of the reaction are there.
Examples of chemical reactions and what they are.Reactants engage in a chemical reaction during a chemical reaction, which results in the transformation of reactants into products. As an illustration, when breathing, oxygen is inhaled, which causes glucose to react with it to create carbon dioxide, water, and energy.
In simple terms, what is a chemical reaction?chemical reaction: a process in which one or more substances—the reactants—are changed into one or more additional substances—the products. Chemical elements and compounds are both substances.
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Emphysema causes a loss of walls between individual alveoli, resulting in fewer, but larger, alveoli. Which part of gas diffusion would be most affected by emphysema?.
Surface area part of gas diffusion would be most affected by emphysema.
Molecular diffusion is the term for the thermal movement of gas molecules above the zero degree Celsius point. The viscosity of the gas, temperature, and particle size are all factors that affect how quickly this phenomenon moves. Gas diffusion describes the movement of matter when there is a difference in material concentration between the interior of the concrete and the surrounding environment, or between different areas within a concrete mass. As perfume diffuses into the air, it enters your nose and allows you to detect its scent, The air becomes diluted with cigarette smoke. Due to their kinetic energy, gaseous particles frequently go through diffusion. Higher temperatures cause diffusion to occur more quickly because the gas molecules' kinetic energy is higher.
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calculate the acid concentration of a sample of acid rain with a ph of 4.20. group of answer choices 1.6 x 104 m 1.0 x 10-4 m 7.7 x 10-9 m 6.3 x 10-5 m 4.2 x 10-1m
The pH can be expressed mathematically as log10[H+], which is the negative logarithm of the molar concentration of hydrogen ions in the solution.
How do you calculate pH of acid rain?See below for a pH scale for acid rain.Explained: The hydrogen ion concentration within a solution is expressed by pH.According to mathematics, pH is equal to log 10 [H + ], or the negative logarithm of the molar concentration of hydrogen ions in the solution.For any relevant solution in issue, we would need to perform this computation to establish its pH level.Since rainwater naturally has a modest acidity, the pH of the sampled solution will differ from that of the rainwater. Around 5 to 5.5 would be the typical pH range for rainwater.We can anticipate a lower pH level, about 4, in the case of acid rain.To Learn more About Ph refer to:
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for a chemical reaction to be only spontaneous at low temperatures, which of the following conditions must be met?
for a chemical reaction to be only spontaneous at low temperatures , ∆S°<0 and ∆H°<0 .
What is chemical reaction?In a chemical reaction, bonds between molecules of the reactant are broken and new bonds between molecules of the product are established to create a new substance.
When two or more molecules combine to create a new product, the process is known as a chemical reaction (s).
Reactants are substances that interact to make new substances, whereas products are those substances that result from the interaction.
Chemical reactions are crucial to many professions, traditions, and even aspects of daily life. They frequently occur in our everyday surroundings, such as the rusting of iron, the firing of pottery, the fermentation of wine, and so forth.
A chemical change that is typically seen with physical changes like precipitation, heat production, colour change, etc. must take place in a chemical reaction.
No atom is created or destroyed in a reaction between two atoms, ions, or molecules, but instead a new product is created from the reactants.
Pressure, temperature, and the concentration of the reactants all have an impact on and affect the rate of reaction.
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What activities decrease your carbon footprint?.
Activities like saving electricity, water, fuel, etc. decrease your carbon footprint.
Stop purchasing water in plastic bottles. Include some of your frequent short-trip destinations on a walking or bike route. When not in use, unplug electronics and turn off the lights. Eat less red meat and more locally produced foods. To save time and money, wash your items on the cold water cycle. Some of the things we can do to lessen our carbon impact include these.
Food, consumption, transportation, and household energy are the main sources of carbon footprints. The total amount of greenhouse gases (such as carbon dioxide and methane) produced by our actions is known as a carbon footprint. One of the highest rates in the world, the average carbon footprint of a person in the United States is 16 tons.
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What is the formula of the ion formed when phosphorus achieves a noble-gas electron configuration?.
It is simpler to understand and predict how atoms will interact to form chemical bonds when you know how phosphorus (atomic number 15) is configured: 1s2 2s2 2p6 3s2 3p3.
Charge for phosphorus:The periodic table, also known as a table of elements, reveals that the atomic number of phosphorus, denoted by the symbol P, is 15. As a result, an atom has 15 protons. The ion's mass number is 15 + 16 = 31. The ion has a net charge of 3 due to its composition of 15 protons and 18 electrons, which is three more electrons than protons.
Ion made from phosphorus:The phosphide ion, P3-, is the most stable monoatomic ion produced from phosphorus. Phosphorous already has 5 valence electrons, so adding 3 more will make it isoelectronic with the stable noble gas argon, resulting in the formation of the P3- ion.
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A mixture of nitrogen, oxygen, fluorine, and neon are in a container which has a tiny, tiny pinhole leak. Which element leaks the slowest from the container?.
The element leaks the slowest from the container is Fluorine.
As, rate of effusion of gas is = rate∝1/[tex]\sqrt{M}[/tex]
What is rate of effusion?
Rate of effusion is inversely proportional to the square root of molecular weight.
Here,
molecular weight of nitrogen = 14amu
molecular weight of oxygen = 16amu
molecular weight of fluorine = 10amu
The rate of effusion with incrase of meolecular weight.
Therefore, the elemnt leaks slowest from the container is Flurine.
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Suppose we connect two containers (container Aand container B) of a non-ideal gas. Both containers are kept at the same temperature and their volume is fixed.
The relation between two containers A and B is : 3mA = 2mB.
What is the relation between two containers?
Given that ,
At the same temperature and volume V, two identical containers A and B with frictionless pistons contain the ideal gas. The gas mass in A is mA, and the gas mass in B is mB.
The initial pressure in both containers is,
PA = (nART) / V
= mA(RT/MV)
PB = (nBRT) / V
= mB(RT/MV)
The pressure after isothermal expanssion is :
PA = (nART) /2V
= mA(RT/2MV)
PB = (nBRT) /2V
= mB(RT/2MV)
Therefore, -ΔPA = PA - PA
= mA(RT/2MV)
Similarly, -ΔPB = PB - PB
= mB(RT/2MV)
Here , ΔPA = ΔP and - ΔPB = 1.5ΔP
So, -ΔPA / -ΔPB = 1/1.5
= -ΔPA = -ΔPB / 1.5
= mA(RT/2MV) = mB / 1.5 (RT/2MV)
= mA = 10mB / 15
Therefore the relation is 3mA = 2mB.
The complete question is " Two identical containers A and B with frictionless pistons contain the ideal gas at the same temperature and the same volume V. The mass of gas in A is mA and in B is mB. The gas in each cylinder is now allowed to expand isothermally to the same final volume 2V. The changes in pressure in A and B are found to be Δp and 1.5ΔP respectively. Then:"
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which of the following statements about the molecular and empirical formulas of ionic and covalent compounds are true?
The molecular and empirical formulations of ionic and covalent compounds are correct because ionic bonds cause polarity in bonds.
Which of the following best sums up how the molecular formula and the empirical formula differ?The empirical formula of a compound gives the simplest ratio of the number of different atoms present, whereas the molecular formula gives the precise amount of each distinct element present in a molecule.
What connection exists between a simple covalent compound's molecular formula and empirical formula?Empirical formulas reveal the simplest or most reduced proportion of elements in a compound, while molecular formulas reveal the number of atoms of each element in a complex.
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