How can the driver of a car change the rate of accelera- tion? List as many ways as you can.

As per the given reaction, one mole or 136 g of turpentine produce 10 moles or 120 g of carbon. Then to produce 569 g of carbon 644.8 g of turpentine is required.

The theoretical yield of a product in a reaction is determined using the balanced equation of the chemical reaction. Actual yield of the product might vary from the theoretical yield.

Given the balanced reaction of turpentine with chlorine gas producing carbon and HCl. Here, one mole of turpentine produces 10 moles of carbon.

molar mass turpentine  = 136 g/mol

atomic mass of carbon = 12 g/mol

mass of 10 moles = 120 g

136 g of turpentine produces 120 g of carbon. Then, mass of turpentine required to produce 569 g of carbon is :

(136 × 569) /120 = 644.8 g

Therefore, the mass of turpentine consumed in the reaction is 644.8 g.

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Answer 1

The average atomic mass in a.m.u of Element X given this information is 122.358.

Answer 2

Rutherford's experiment change the way scientists had previously viewed atomic structure as it provided insight into atomic structure.

Rutherford's experiment paved the way for subsequent changes up to and including the currently accepted quantum mechanical atomic model as his  model of the atom, the structure of the nucleus became more well-defined following the discovery of protons (1919) and neutrons (1932) as the particle constituents of the nucleus.

Answer 3

The percent abundance is related to the number fraction as fi = Pi/100  and used as in the formula written above in order to find average mass

Atomic structure refers to the structure of an atom comprising a nucleus (centre) in which the protons (positively charged) and neutrons (neutral) are present.

The average atomic mass in a.m.u of Element X given this information is ((121 * 43.2) + (123 * 53.1) + (129 * 3.70)) / 100

=5227.2 + 6531.3 + 477.3

=12235.8 / 100

122.358

Rutherford's experiment change the way scientists had previously viewed atomic structure as it provided insight into atomic structure, and Rutherford's model of the atom was proposed as a small, positive, massive nucleus contains the very vast majority of the mass of the entire atom with negatively charged electrons surrounding it at relatively large distances.

Rutherford's experiment paved the way for subsequent changes up to and including the currently accepted quantum mechanical atomic model as his  model of the atom, the structure of the nucleus became more well-defined following the discovery of protons in 1919 and neutrons in 1932 as the particle constituents of the nucleus.

It was during the 1920s that a "wave mechanical model" came along through the work of several physicists most importantly de Broglie, Heisenberg, and Schrodinger) and Bohr's concept of electrons "orbiting" the nucleus was abandoned in favor of "orbitals" which are more abstract probabilistic representations of electronic structure within an atom.

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Around 3600 degrees Celsius is the temperature at which graphite melts, but it sublimes rather than melting. Tetrahedrally organised carbon atoms are found in diamond, whereas there are an infinite number of carbon atoms in graphite.

The temperature at which a substance transforms from a solid into a liquid is known as its melting point. The temperature at which a substance transforms from a solid into a liquid is known as its melting point. The balance between the solid and liquid phases is reached at the melting point. Pressure affects a substance's melting point, which is often reported at a standard pressure of 1 atmosphere, or 100 kPa. The melting point is the fixed temperature at which a solid transforms into a liquid. For instance, at 0°C, ice cubes begin to melt and turn from a solid to a liquid.

By placing a small amount of an organic solid in a tiny capillary tube, affixing it to the stem of a thermometer centred in a heating bath, and gradually heating the bath, one may calculate the temperature at which melting begins and finishes. Melting points are frequently used to describe and rate the purity of organic and inorganic crystalline substances. Pure compounds melt at a fairly narrow temperature range of 0.5 to 1 °C, whereas contaminated, impure chemicals frequently show a huge melting gap.

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The correct answer is 2.03×1/10² mol

500 cm³ = 0.5 L,760 mm of Hg=1 atm.

Now apply the ideal gas law, n= PV/RT

​n= 1×0.5/ 0.0821×300

⟹n=2.03×10 ^−2 mol

What is the ideal gas law?

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Valence bond theory, Lewis theory and the molecular orbital theory are the three bonding theories in chemistry. Molecular geometry is the three dimensional arrangement of atoms in the molecule.

Bonding theories are the vital postulates in chemistry that provide the basic information regarding the bonds present in a particular molecule. Three bonding theories are Lewis theory, valence bond theory, and molecular orbital theory. In Lewis theory, the electrons and lone pairs are symbolized as dots surrounding the atom. In valence bond theory, electrons are shared among orbitals of atoms, that forms bonds.  In molecular orbital theory, two atomic orbitals combine to make a molecular orbital. Bonding theories are very significant as they maintain the orientation in a bond. They provide information on the sort of bond present in the molecule, the sort of bonding taking place to form a simple or complex compound.

Molecular geometry is also known as the molecular structure. It is the three-dimensional structure or arrangement of atoms in a molecule. Helps to understand the molecular structure of a compound. It helps to determine the polarity, reactivity, phase of matter, color, magnetism, as well as the biological activity.

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The complete question is,

Explain bonding Theories and molecular geometry.

Answer:

536.79608

Explanation:

Answer:

1232 g of carbon dioxide are formed

Explanation:

As octane is being burned it would be combustion reaction.

writing the balanced equation:

C8H18 + 25/2 O2 →  9 H2O + 8 CO2

now stepping up mole ratio from the balanced equation:

                   moles of octane    :      moles of carbon dioxide

                               1                  :                    8

                                3.5             :                    X

X = 3.5 x 8 = 28

therefore when 3.5 moles of octane are burned in air 28 moles of carbon dioxide are evolved.

now in order to calculate the mass of CO2 formed

molar mass of CO2 = 12 + (16 x 2) = 44g

now calculating the mass of 28 moles:

                          moles : mass

                              1      : 44 g

                              28  :   X

X = 28 x 44 = 1232 g

1232 g of CO2 are formed

If the weight in gm of the sample is 0.040 moles of salt (NaCl) then Molar mass of NaCl = 58.44 g/mol.

The ratio between the weight and the amount of substance in any sample of a chemical compound is known as the molar mass of that compound. The molar mass of a compound is a bulk property instead of a molecular one.

By using formula: n=m / M m=n×M

m=(0.040)x(58.5) m=2.34g

So,

It means that if we prepare a 100cm3 solution using 2.34g of NaCl, the solution's concentration will be 0.500 mol/dm3.

Molar mass of Nacl = 58.44 g/mol

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The result of DNA replication identical is two DNA molecules consisting of one new nucleotide chain and one old chain.

DNA replication is a process of doubling the DNA chain assisted by DNA polymerase enzymes in the interphase before mitosis. Prokaryotes carry out continuous DNA replication and eukaryotes carry out DNA replication in the S phase of the cell cycle before mitosis. DNA replication aims to produce new DNA that is identical to the parent cell's DNA so that DNA replication is described as semi-conservative.

The semi-conservative theory resulted in two DNA strands consisting of one old strand and one new double helix with exactly the same information as the old DNA. The result of DNA replication is two DNA molecules consisting of one new nucleotide chain and one old chain. That is why the results of DNA replication have the same or identical properties.

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The number of nitrogen molecules that reacted with excess hydrogen to make 2 × 10¹⁰  molecules of ammonia is 1 × 10¹⁰ molecules.

Given that :

The molecules of the Ammonia = 2 × 10¹⁰ molecules

The reaction is given as :

3H₂  +  N₂  ⇄ 2NH₃

1 mol = 6.022 × 10²³ molecules

from the reaction it is clear that :

1 mole of the  N₂ will produces the 2 mol of the ammonia.

therefore, 1 molecule of the nitrogen produces 2 mol of the ammonia

molecules of the nitrogen, N₂ = 2 × 10¹⁰ / 2

                                                  = 1 × 10¹⁰ molecules.

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There are 9.6 * 10^22 formula units in 4.43 grams of the nitrogen molecule.

We know that the number of the formula units that we have can easily be obtained from the use of the Avogadro's hypothesis. Let us note that we can see that there are 4.43 g of the nitrogen molecules.

We have the number of moles of the nitrogen molecules as;

Number of moles = mass/molar mass

= 4.43/28 g/mol

= 0.16 moles

If 1 mole of the molecule contains 6.02 * 10^23 formula units

0.16 moles would contain 0.16 * 6.02 * 10^23/ 1

= 9.6 * 10^22 formula units

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The given chemical reaction can be balanced as written below:

[tex]\rm 4 Fe + 3O_{2} \rightarrow 2 Fe_{2}O_{3}[/tex].

The balanced equation of a chemical reaction represents the perfect stoichiometry of all the reactants and products. Thus, the total mass in the reactant side must be equal to the total mass in the product side.

The number of each element in the reactant side must be equal with their number in the product side. In the given reaction, there are 2 Fe and 3 O in the product side.

To balance the number of oxygen, multiply by 3 in the reactant side and by 2 in the product side. Then we get 6 oxygens in both side. Now there are 4 Fe in the product side. Then put 4 to the Fe in the reactant side as written in the reaction above.

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The number of moles of fluorine atoms are in 5.50 moles of Freon is 11 moles.

The mole is the amount of a substance that contains exactly as many molecules, atoms, radicals, ions, or electrons as there are in 12 grams of 12C.

The moles of atoms of an element present in a compound is obtained from the formula of the compound.
The moles of fluorine atoms present in 5.50 moles of Freon (CCl₂F₂) is obtained as follows:

From the formula of Freon, there are 2 moles of fluorine atoms in 1 mole of Freon.

In 5.50 moles of Freon, there will be 5.5 * 2 moles of fluorine = 11 moles of fluorine atoms.

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Low temperatures cause the reaction to move in the direction of the product that will produce the Compound 2 is more stable at the high temperature since it is the more substituted alkene.

A substance made up of two or more components is called a compound. Table salt, water, and carbon dioxide are a few examples of compounds. The two fundamental categories of compounds are. The way the atoms in the molecule bond to one another defines who we are. Salt compounds and molecular compounds are two examples of these categories. a material created by chemically joining two or more distinct components. Examples of compounds are table salt (NaCl), which is generated from the elements sodium and chloride, and water (H2O), which is created from the components hydrogen and oxygen.

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Answer:

The third planet from the sun is the one you happen to be living on right at this very moment. Yes, that is planet Earth.

Explanation:

It tells us how far the planet we are currently living on is towards our star (aka the sun) which is why that information/statement/claim is important.

Formula

[tex]\ell=\frac{n h}{2 \pi}[/tex]

[tex]\ell = angular \: momentum[/tex]

[tex]n = principal quantum number \\ h = Planck's constant \\ \pi = pi[/tex]

Answer:

Dog

Zebra

Sing

Yoga

Gaming

Cooking

The percentage yield of the reaction from the given parameters would be 30.99%. Option B.

The percent yield of a reaction is the actual amount of product formed relative to the theoretical amount of product that is supposed to be formed from the same reaction.

This is mathematically expressed as:

Percent yield = actual yield/theoretical yield x 100%

In this case: the actual yield = 16.81 g, the theoretical yield = 54.25 g

Thus, the percent yield of the reaction can be calculated as:

16.81/54.25 x 100% = 30.99%

In other words, the percent yield of the reaction would be 30.99%.

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Answer: B. 30.99%

Explanation:

The student's error is that she is assuming that the number of atoms in a sample is directly proportional to the mass of the sample. Avogadro's number (6.022 x 10²³) represents the number of atoms or molecules in one mole of a substance. However, the number of atoms in a given mass of a substance depends on the molar mass (mass per mole) of the substance, not the Avogadro's number.

The correct way to determine the number of atoms in a sample is to use the formula:

number of atoms = mass of the sample / molar mass

In this case, the molar mass of the substance is 30 g/mol, so the number of atoms in 150 g of the substance is:

number of atoms = 150 g / 30 g/mol = 5 mol

The correct answer is 5 moles of atoms, which is not equal to 5 times Avogadro's number. Therefore, the student's answer is incorrect.The student's error is that she is assuming that the number of atoms in a sample is directly proportional to the mass of the sample. Avogadro's number (6.022 x 10²³) represents the number of atoms or molecules in one mole of a substance. However, the number of atoms in a given mass of a substance depends on the molar mass (mass per mole) of the substance, not the Avogadro's number.

The correct way to determine the number of atoms in a sample is to use the formula:

number of atoms = mass of the sample / molar mass

In this case, the molar mass of the substance is 30 g/mol, so the number of atoms in 150 g of the substance is:

number of atoms = 150 g / 30 g/mol = 5 mol

The correct answer is 5 moles of atoms, which is not equal to 5 times Avogadro's number. Therefore, the student's answer is incorrect.

The molarity of the solution produced when the 145 g of sodium chloride (NaCI) is dissolved in the sufficient water to prepare the 2.75 L of solution is 0.90 M.

Given that :

Mass of the sodium chloride NaCl = 145 g

Volume of the NaCl = 2.75 L

The molar mass of the NaCl = 58.4 g/mol

The moles is given as :

Moles = mass / molar mass

Moles = 145 / 58.4

Moles = 2.48 mol

The molarity expression is given as :

Molarity = moles / volume in L

Molarity = 2.48 / 2.75

Molarity = 0.90 M

Thus, the molarity of KCl is 0.90 M.

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The carbon atom forms a 4 sigma bond and is SP 3 with tetrahedral geometry. It is also SP 2 hybridized with tetragonal planner geometry with a 3 sigma & 1 bond. an oxygen atom with two loan electrons

A live organism's body, coal, a carbon dioxide particle, and other kinds of existence are only a few examples of the many various ways that carbon can exist. Carbon atoms can change their forms as a result of several processes. Carbon can appear in a variety of things, such as carbon dioxide, anthracite, a cow, sugar, and diamond.

It is a non-metal, denoted by the symbol C. There are 6 protons, 6 neutrons, and, of course, 6 electrons in it. Because of its almost infinite capacity for bonding with other carbon atoms, a carbon atom is regarded as distinctive and unique.

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Every time a magnet was placed close to cathode rays, the same kind of bend occurred.

Describe cathode rays.

cathode ray, a stream of electrons exiting the cathode of a discharge tube that contains a gas at reduced pressure, or electrons released by a filament in some electron tubes.

What makes it a cathode?

Positively charged ions called cations give rise to cathodes, while anions give rise to anodes (negatively charged ions). The cathode is indeed the negative charges electrode in an electrically powered device.

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A conjugated diene and an alkene (dienophile) react to generate unsaturated six-membered rings in the Diels-Alder reaction. The reaction is also known as a "cycloaddition" because it results in the production of a cyclic product via a cyclic transition state.

Bicyclic structures with substituents in the endo position are more likely to arise during Diels-Alder reactions involving cyclic dienes. Diels-Alder reactions can only occur in conjugated dienes with the s-cis structure. A diene cannot conduct a Diels-Alder reaction if it is not conjugated or cannot be in the s-cis configuration. Ring-bound dienes are unable to spin and are thus locked in either an s-cis or an s-trans conformation.

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Temperature. The desert reaches an average daily temperature of 38°C (just over 100°F). Desert nighttime temperatures typically drop below -3.9°C (approximately 25°F).

What is the desert's highest temperature?

The world's hottest air temperature was recorded at Death Valley: A scorching 56.7°C (134.1°F) was recorded on July 10, 1913, in the California desert's aptly called Furnace Creek location. Meanwhile, the average summer temperature frequently exceeds 45°C (113°F).

What is the desert's lowest temperature?

Desert surfaces lose nearly twice the same or more heat at night as humid ones do and receive slightly more than twice as much solar energy. Many average annual temperatures fall between 20 and 25 °C. The extreme maximum temperature is between 43.5 and 49 degrees Celsius. At times, the minimum temperature falls below -18 degrees Celsius.

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The lewis structure of the CH₃OH₂⁺ :

     H

      |     ..+

H - C - O - H

      |     |

     H    H

The given molecule is :

CH₃OH₂⁺

The number of the valence electrons of the carbon  = 4

The number of the valence electrons of the hydrogen = 1

The number of the valence electrons of  the oxygen = 6

The lewis structure for the molecule is given as :

   H

      |     ..+

H - C - O - H

      |     |

     H    H

     H

      :     ..+

H : C : O : H

      :     :

     H    H

The compound given has the formal charge of +1.

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The object with fixed volume and shape is a solid. When it converts to liquid, it miss the shape but still have a definite volume. Thus, the given phase transition is solid to liquid.

The transition of one state of matter to the other is called phase transition. For example the transition from liquid to solid or solid to gas etc. are phase transitions. Phase transitions are physical changes.

In solid state, the particles are closely packed with strong intermolecular forces. Thus, they have a definite shape and size. In liquid phase, the molecules have some space to move and they lack a perfect shape and assume the shape of the container.

The molecules in gas phase, are far apart and they don't have a shape and volume. Therefore, the given transition is from solid to liquid. Hence, option c is correct.

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Using Drink Mix mode:

a. To find the molarity when 772 moles of a solute are dissolved in 500 liters of water, you can use the formula:

Molarity (M) = number of moles of the solute present in the solution / liters of solvent

Molarity (M) = 772 moles / 500 liters

                    = 1.544 M

b. To find the molarity when 453 moles of a solute are dissolved in 450 liters of water, you can use the formula:

Molarity (M) = number of moles of the solute present in the solution / liters of solvent

Molarity (M) = 453 moles / 450 liters

                    = 1.01 M

It's worth noting that molarity is a unit of concentration and is often used to describe the concentration of a solute in a solution. It is calculated as the number of moles of solute per liter of solvent.

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