Which will have higher boiling point 0.1 m NaCl or 0.1 m bacl2 solution in water?

Among the given compounds the 5th compound is chiral and having   the  central carbon is attached to different groups. All other compounds are achiral.

A compound become chiral if it contains at least one chiral center that is., a carbon atom with four different valences. For example CFClBrI is chiral since the carbon atom is joined with four different groups.

Chiral compounds are optically active and have stereoisomers. The first given compound is achiral , where all carbon atoms are attached to same groups in either side.

The second compound is also achiral where the carbon with the Cl group has no four different valencies. The third one is also achiral with a carbon atom having similar groups bonded to it . The fifth compound is achiral where, the carbon atom bearing Cl group and the carbon bearing Br group are chiral centers.

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The compounds below in image categorized as chiral or achiral.  There are 6 compounds.

If a combination of translations and rotations cannot superimpose the molecule's image on its mirror image, the molecule is said to be chiral.

If a molecule or ion cannot be superimposed on its mirror counterpart, it is said to be chiral. The term "chirality" refers to a molecule's geometric feature. A plane of symmetry or a centre of symmetry are absent from chiral compounds.

An achiral item and its mirror image are identical and can be superimposed. Golf clubs, scissors, shoes, and corkscrews are examples of chiral objects that have a "handedness." So, it's possible to purchase scissors and golf clubs with either hand. A right and a left pair of gloves and shoes are also available.

Thus,  The compounds below in image categorized as chiral or achiral.

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Unbalanced and Oxygen are the blank values which completes the statement regarding the given reaction.

[tex]2NaOH + H_2SO_4 - > Na_2SO_4 + H_2O[/tex]  the equation is unbalanced because the number of hydrogen atoms and oxygen atoms is unequal in the reactant and in product side.

in order to fill the blank values we have to calculate the number of each atoms involved in the reaction on both side of the reaction.

i) [tex]Na[/tex] atom

  LHS = total number of [tex]Na[/tex] atoms on the left side of the reaction

  LHS = 2*1

  RHS = total number of [tex]Na[/tex] atoms on the right side of the reaction

  RHS = 1*2

  LHS = RHS so [tex]Na[/tex] atoms are balanced on both side.

ii) [tex]H[/tex]  atom

   LHS = total number of [tex]H[/tex] atoms on the left side of the reaction

   LHS = 2* 1+ 1 *2 =4

   RHS = total number of [tex]H[/tex] atoms on the right side of the reaction

   RHS = 1 *2 = 2

   LHS ≠ RHS so [tex]H[/tex]  atoms are unbalanced on both side.

iii) [tex]O[/tex]  atom

   LHS = total number of [tex]O[/tex] atoms on the left side of the reaction

   LHS = 2*1+ 4 =6

   RHS = total number of [tex]O[/tex] atoms on the right side of the reaction

   RHS =  1*4 + 1 =5

   LHS ≠ RHS so [tex]O[/tex]  atoms are unbalanced on both side.

iv) [tex]S[/tex] atom

  LHS = total number of [tex]S[/tex] atoms on the left side of the reaction

  LHS = 1

  RHS = total number of [tex]S[/tex] atoms on the right side of the reaction

  RHS = 1

  LHS = RHS so [tex]S[/tex] atoms are balanced on both side.

from the above comparisons we can observe than the complete reaction is unbalanced and  [tex]H[/tex] and [tex]O[/tex] have different count in reactant and product side.

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Answer:

where are the reactions.................

Explanation:

The chemical reaction between AB and CD is a double displacement reaction with products as AD and BC and chemical equation as AB +CD[tex]\rightarrow[/tex]AD+BC.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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The valence electrons of Neon is 8. Neon has the atomicnumber 10. It is a stable noble gas.

Valence electrons are the total number of electrons present in the outermost shell of an atom. The valence electron for neutral atom is always definite. Neon has eight valence electrons, a full octet that makes neon quite stable Noble gas. This can be confirmed via it's electronic configuration by looking at the highest energy level which is 2 in this case

The electronic configuration of Neon is,

              1s2 2s2 2p6 or [He] 2s2 2p6

Here, the 2s orbital holds two valence electrons while the 2p orbital holds the other six valence electrons. so there are 8 valence electrons that is a full octet.

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Draw each isomer and take into account all potential isomerisms. [Cr(NH3)5(NO2)]Cl2, the original compound; [Cr(NH3)5(ONO)] Cl2 (linkage isomerism via NO2), [Cr(NH3)5Cl)Cl(NO2) (ionization isomerism).

The two basic types of isomerism are stereoisomerism and spatial isomerism, in which the bonds between the atoms are the same but their relative positions are different, and structural as well as constitutional isomerism, in which the bonds between the atoms differ.

Their bonding patterns and the way they occupy three-dimensional space allow you to distinguish between them. By examining the bonding patterns, distinguish structural (constitutional) isomers. While the atoms in the compounds are identical, their connections create various functional groups.

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Scientists determine a nucleus' location within an atom by A. measuring half the distance between the nuclei of two bonded atoms.

The Covalent radius is a value used to understand the covalent bonded atoms, while the atomic number refers to the number of protons and neutrons that are present in a given atomic nucleus, which allows us to obtain the relative distance between one atom and other atoms.

This value (the atomic number) is useful in chemistry in order to determine different elements since they are composed of a variable number of positively charged protons and neutrons in the nucleus, as well as the number of negatively charged electrons in the orbitals of the atom.

Therefore, with this data, we can see that the Covalent radius and atomic number are fundamental in order to determine the number of protons and neutrons and this info is associated with the relative distance observed between two bonded atoms.

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The pressure of the gas in the bulb, given that height in the right arm is 100 mm and the left arm is 120 mm, is 740 mmHg (Option C)

From the question given above, the following data were obtained:

The pressure of the gas in the bulb can be obtained as shown below:

Pressure of gas = Atmospheric presure - Pressure due to difference in height

Pressure of gas = 760 - 20

Pressure of gas = 740 mmHg

Thus, we can conclude from the calculation made above that the pressure of the gas is 740 mmHg (Option C)

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Answer:

0.9cm³

Explanation:

Density(D)= 5.0g/mL

gravity(g) = 10.0m/s²

mass(m) = ?

weight(w) = 45.0g

volume = ?

soln

knowing that

weight = mass × gravity

W = m × g

45 = m × 10

45 = 10m

[tex]m = \frac{45}{10} = 4.5[/tex]

m = 4.5g

[tex]density = \frac{mass}{volume} [/tex]

[tex]5 = \frac{4.5}{v} [/tex]

cross multiply

[tex]5v = 4.5[/tex]

[tex]v = \frac{4.5}{5} [/tex]

v = 0.9cm³

i hope this helps

Answer:

half of the genetic makeup from the mother and half from the father

Explanation:

Their mother passes one copy on to them through the egg, while their father passes the other one along (via the sperm). Each egg and sperm have a single set of 23 chromosomes. Two copies of each chromosome and two copies of each gene are present when the sperm fertilizes the egg, resulting in the formation of an embryo.

Enthalpy Changes the overall energy change in the substance portrayed in the graph at  48°C.

Mass (m) = 0.3 Kg

Initial temperature (T1) = 20°C

Heat (Q) added = 35 KJ

Specific heat capacity (C) = 4.18 KJ/Kg°C

Final temperature (T2)

The final temperature of water can be obtained as follow:

Q = MC(T2 – T1)

35 = 0.3 x 4.18 (T2 – 20)

35 = 1.254 (T2 – 20)

Clear the bracket

35 = 1.254T2 – 25.08

Collect like terms

1254T2 = 35 + 25.08

1.254T2 = 60.08

Divide both side by the coefficient of T2 i.e 1.254

T2 = 60.08/1.254

T2 = 47.9 ≈ 48°C

Therefore, the final temperature of the water is 48°C.

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Companies become carbon neutral when when they calculate their carbon emission and compensate for what they have produced through carbon offsetting projects.

The term Carbon neutrality means having a balance between emitting carbon and absorbing carbon from the atmosphere in carbon sinks. Removing carbon oxide from the atmosphere and then storing it is known as carbon sequestration. Companies use their carbon footprint as a basis for setting long-term reduction targets and deciding what action to take. for example, the switch to green electricity. In many cases, the potential for reductions in carbon emissions is restricted. It is not possible for a haulage company. Official proof of credible carbon neutrality is important to consumers. Carbon neutrality must be verified by means of a recognized label.

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There are two kinds of motion that earth possess, one is rotation and other is revolution. Therefore,  the correct option is option C that is "this is due to rotation of earth on its axis".

The motion of the earth around its axis is known as rotation. Revolution refers to the motion of the earth about the sun in a fixed route or orbit. The earth's axis, which is an invisible line, forms a 6612° angle with its planet's orbit.

The earth does not remain stationary throughout the year. The Earth revolves around the sun. The earth revolves and spins around the sun. The Earth is situated between Venus and Mars, therefore it is neither too hot nor too cold. Because of rotation of earth on its axis, earth is hotter in summer than in winter.

Therefore,  the correct option is option C that is "this is due to rotation of earth on its axis".

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0.2 dm³ volume of 3.0 mol dm⁻³ solution of NaOH  is required to prepare 3.0dm³ of 0.2mol dm⁻³ solution of NaOH.

The concentration  and volume of the concentrated or diluted solution can be determined from the equation mentioned below:

M₁V₁ = M₂V₂

where M₁, V₁ are the concentration and volume of the stock solution respectively, and M₂, V₂ are the concentration and volume of the diluted solution.

Given, a NaOH stock solution of concentration, M₁ =  3.0 mol dm⁻³

The concentration of the diluted solution, M₂ =  0.2 mol dm⁻³

The volume of diluted NaOH solution, V₂  = 3.0 dm³

Substitute the value of the concentration and volume in equation (1):

(3.0)× (V₁) = (0.2) × (3.0)

V₁ = 0.2 dm³

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This phenomenon of difference in precipitation on earth and ocean surface is  due to a variety of factors.

First of all, gravity allows any water from the Earth's surface to flow into the ocean. In the ocean, there are glaciers as well that can melt.

The ocean, the atmosphere, and the land all continuously exchange moisture as part of the water cycle.

Over the ocean, weather patterns develop and dissolve more slowly than over land, hence there is greater atmospheric circulation there. As a result, additional clouds are forming.

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The RMS or the root mean square velocity of a gas particle is calculated because the net velocity of a gas sample is always zero.

The velocity of a given sample of gas is calculated because the temperature is directly related to the velocity of the gas particles. The reason we use RMS velocity instead of average velocity is that any gas sample always has its net velocity be zero. This is because the particles of the gas sample are always moving in all directions. So if we take the average velocity of the gas sample which becomes zero, the temperature will also be affected which is not the case in reality. Therefore, RMS velocity is always used instead of average velocity.

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This observation indicates that water molecules have spaces between them into which sugar particles can fit.

What is meant by volume of solution?

Since a solution contains both a solute and a solvent, the volume of the solution as a whole equals the sum of the volumes of the solute and the solvent that it contains.

Hence, this observation indicates that water molecules have spaces between them into which sugar particles can fit.

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When a channel opens, H+ ions will flow out of the mitochondrion if the concentration of  H+ ions inside the mitochondrion is higher than the concentration outside the mitochondrion.

The inner mitochondrial membrane is where H+ ions and electrons from NADH and FADH2 are released. The energy released during the transfer of electrons is used to pump H+ ions into the intermembrane gap as electrons join the electron transport chain. Since H+ ions cannot penetrate the inner mitochondrial membrane and return to the matrix because it is impermeable to protons, there is a larger concentration of H+ ions in the intermembrane space, which creates and maintains a proton gradient across the inner mitochondrial membrane.

Hence, open channel freely passes proton to inner membrane space.

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The given organic compound can be named based on the IUPAC rules. The name of the compound is 3-hydroxy-2,4,4-trimethyl pentane.

IUPAC rules are certain rules regarding the naming of organic compounds. The compounds are numbered based on the longest chain of carbon atoms in it. The numbering starts from the position of double bond or triple bond if present or the functional groups is noted.

The name is given in the alphabetical order of the prefix of the functional groups and the numbering is put in a manner that the carbons bearing the functional groups have the small numbers.

The given compound contains 5 carbons in the longest chain. The OH group is attached to the 3rd carbon and there are 3 methyl branches one in 2nd carbon and 2 in 4th one. Hence, the name of the compound is 3-hydroxy-2,4,4-trimethyl pentane.

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When 20.0 ml of 0.10 m Ba(NO₃)₂ (aq) and 50.0 ml of 0.10 m Na₂CO₃ (aq) are mixed together, a precipitate of BaCO₃ will be formed.

In aqueous solution, precipitation is defined as the process of turning a soluble substance into an insoluble solid from a supersaturated solution.

Precipitation of a compound generally occur when its concentration exceeds its solubility. This may happen due to temperature changes, solvent evaporation, or mixing of solvents. Precipitation always occurs faster from a highly oversaturated solution.

When the barium chloride solution reacts with sulfuric acid, a white precipitate of barium sulfate is formed in the product side.

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Answer: True

Explanation:

I remember learning this in AP Chemistry class. Protons and neutrons are in the nucleus of an atom when electrons are outside the core.

The volume that 4.95 moles of hydrogen gas will occupy at STP is 110.95L.

The volume occupied by a gas can be calculated using the ideal gas equation as follows:

PV = nRT

Where;

According to this question, a gas at standard temperature and pressure will have the following characteristics:

1 × V = 4.95 × 0.0821 × 273

V = 110.95L

Therefore, 110.95L is the volume occupied by the ideal gas.

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Answer:

Explanation:

When two hydrogen atoms come close enough to each other, their electrons are attracted to the proton of the other atom.

By filtration technique using funnel filter out of salt NaCl. By rotary evaporation technique, evaporate the organic solvent and the sucrose will be left.

All plants, including fruits, vegetables, and even nuts, naturally produce sugar, the familiar and beloved simple carbohydrate, which is known by its chemical name, sucrose. Natural sugars such as sucrose can be found in varying concentrations in plants such as fruits, vegetables, and nuts. From sugar cane and sugar beets, sucrose is also economically produced. Your body needs energy to carry out both physical and mental tasks, and sucrose, a carbohydrate, gives you that energy. Foods like sucrose and starch are broken down by your body into fructose and glucose during digestion. To provide energy to your cells, your body breaks down the fructose and glucose.

a study found that taking the more "natural type of sugar" could be just as harmful to your health as ingesting high fructose corn syrup.

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The correct statement about emission line spectrum of the hydrogen atom is i)the lines converge at lower energies.So,correct option is i.

The hydrogen spectrum is a significant piece of proof to show the quantized electronic construction of a molecule. The hydrogen atoms of the particle separate when an electric release is gone through a vaporous hydrogen particle. It brings about the emanation of electromagnetic radiation started by the enthusiastically energized hydrogen iotas. The hydrogen discharge range involves radiation of discrete frequencies. These series of radiation are named after the researchers who found them.

Hydrogen atom lines converge at lower energies since electrons of emission lines are stable in nature when energy is lower. Every object in this universe want to remain stable, similar nature with electron also when they have less energy then they are able to converge more easily as compared to any other state.

Hence, correct option is a.

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(Complete question) is:

Which statement is correct for the emission spectrum of the hydrogen atom?

i.The lines converge at lower energies

ii.The lines are produced when electrons move from lower to higherenergy levels .

iiiThe lines in the visible region involve electron transitions into theenergy level closest to the nucleus.

ivThe line corresponding to the greatest emission of energy is in theultraviolet region.

The lewis structure of I₃⁻ is attached as a picture.

The geometry of the I₃⁻ molecule is linear. Although there are three atoms of iodine, only one of them has a negative charge. This results in three lone pairs of electrons and two bond pairs being created as a result. It is going to have a steric number of 5. The three lone pairs will avoid contact with one another and go to equatorial locations. The lewis structure represents that, by accepting an extra electron, the core I atom has increased the size of its octet. This electron is responsible for giving it a -ve charge.

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As a result, will be 2.29 degrees Celsius. Thus, this represents the needed solution's freezing point.

When a non-volatile solute is dissolved in an organic solvent, a phenomena known as freezing point depression takes place.

The freezing point of the solvent is lowered below its usual freezing point by the addition of the solute. This is a result of the solute's presence, which causes the solvent's vapour pressure to fall.

This phenomena is crucial to the study of colligative characteristics, which deal with how the presence of solutes lowers a solution's freezing point, boiling temperature, and vapour pressure.

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As a result, will be 2.29 degrees Celsius. Thus, this represents the needed solution's freezing temprature.

When a non-volatile solute is dissolved in an organic solvent, a phenomena known as freezing point depression takes place.

The freezing point of the solvent is lowered below its usual freezing point by the addition of the solute. This is a result of the solute's presence, which causes the solvent's vapour pressure to fall.

This phenomena is crucial to the study of colligative characteristics, which deal with how the presence of solutes lowers a solution's freezing point, boiling temperature, and vapour pressure.

Molar mass of sucrose is equal to 342.297 g/mol (12 x 12.011 + 22 x 1.008 + 11 x 15.999).

1000 g = 1 Kg

As a starting point, let's determine how many moles of sucrose there are: (mass of sucrose/molar mass of sucrose) = (115.0 g/342.297 g/mol) = 0.3360 mol

Next, determine the molality of the sucrose solution: (moles of sucrose per kilogramme of solvent) = (0.3360 mol per 0.35 kilogramme) = 0.96 mol/kg or 0.96 m

Water does not allow the glucose molecules to associate or dissociate, hence the Van't Hoff factor I is equal to 1.

T f = I x Kf x m) = (1 x 1.853 deg C/m x 0.96 m) = 1.78 deg C is the depression in the freezing point of sucrose solution.

Pure water has a freezing point of 0 degrees Celsius.

So, the freezing point of a solution of sucrose is equal to (0 - 1.78), or - 1.78 degrees Celsius.

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Answer:

to produce silicon tetrachloride and water

Explanation:

Business travel is categorized into scope 3 emissions. In addition to exposing groups to weather transition risks, Scope 3 emissions can doubtlessly enhance prices.

Scope 3 emissions are among the finest quantity of emissions that groups produce indirectly, so it is going to be vital for manufacturers to attain their sustainability goals, with the blessings to wider society of a greener enterprise environment. These also are oblique emissions – which means the ones now no longer produced with the aid of using the organization itself – however they fluctuate from Scope 2 as they cowl the ones produced with the aid of using clients the use of the organization's merchandise or the ones produced with the aid of using providers making merchandise that the organization uses.

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The  dichloromethane (DCM) a good organic solvent to solubilize benzoic acid and acetanilide because of the polarity of dichloromethane.

The DCM is a good organic solvent because it is volatile and have the ability to dissolve a wide range of the organic compound. the solubility of the benzoic acid and the acetanilide  in the dichloromethane is due the polarity. the like dissolves like. the DCM is less polar solvent.

The DCM dissolves the non ionic compounds and the slightly polar compounds. the water is the polar compound and it dissolves the ionic compound and the polar compounds. this is the reason dichloromethane (DCM) a good organic solvent to solubilize benzoic acid and acetanilide.

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