Assume a gallon of gasoline contains 2370. 0 grams of octane. How many grams of carbon dioxide would be


produced by the complete combustion of the octane in this gallon of gasoline?


In 2017, people in the US used about 143 billion gallons of gasoline. How many grams of carbon dioxide


were generated by the combustion of this gasoline, assuming the value you calculated in the first question


was accurate?

Answer:

CH2: (1×12g/mol)+(2×1g/mol)=14 g/mol.

Answer:

bf v

Explanation:

bgf

The average mass of the copper atoms in the sample is 63.4622232 amu.

The average mass of the copper atoms in the sample can be calculated by multiplying the mass of each isotope by its percentage abundance and summing the results.

Copper-63: 69.2% x 62.92960 amu = 43.480832 amu
Copper-65: 30.8% x 64.92779 amu = 19.9813912 amu

Adding these values together:

43.480832 amu + 19.9813912 amu = 63.4622232 amu

Therefore, the average mass of the copper atoms in the sample is 63.4622232 amu.

Learn more about isotope here:

https://brainly.com/question/27475737

#SPJ11

The high-density brine drains into the water beneath the ice and in the process, the sea ice freshens while the salinity of the underlying water decreases, becoming less dense (Option C).

Sea ice is usually less salty than the ocean water it freezes from. During the process of ice formation, salt in the ocean water is expelled from the ice as it grows; most of the salt is ejected into the ocean but some remain trapped inside pockets of brine within the ice. When the air temperature falls below the freezing point of seawater (usually around -1.8 °C), water molecules start to form ice crystals, which grow and aggregate into a solid sheet of ice.

During this process, the salt rejected by the growing ice also accumulates, causing the salinity of the remaining brine to increase. Some of the brine is encapsulated within ice crystals, but most are trapped in the spaces between neighboring crystals.

Thus, the correct option is C.

Learn more about brine: https://brainly.com/question/14667236

#SPJ11

Answer:

Electrons accelerated to high velocities travel in straight lines through an empty cathode ray tube and strike the glass wall of the tube, causing excited atoms to fluoresce or glow.

Explanation:

Combustion of fossil fuels, particularly in vehicles and industrial processes.

The primary contributors to the formation of photochemical smog in cities like Los Angeles and Tehran are nitrogen oxides (NOx) and volatile organic compounds (VOCs).

NOx is primarily released during the combustion of fossil fuels, particularly in vehicles and industrial processes. The main source of NOx emissions is the burning of gasoline and diesel in vehicles, power plants, and industrial facilities. Vehicle exhaust is a significant contributor, especially in densely populated areas with high traffic volumes.

VOCs are a diverse group of organic compounds that can evaporate at room temperature and contribute to smog formation. They are released from various sources, including industrial processes, gasoline evaporation, solvents, and chemical products.

In urban areas, the main sources of VOC emissions are and industrial emissions, as well as consumer products such as paints, cleaning agents, and personal care products.

When NOx and VOCs are released into the atmosphere, they undergo complex chemical reactions under sunlight and high temperatures. These reactions produce ground-level ozone (O3) and other secondary pollutants, leading to the formation of photochemical smog.

Sunlight plays a crucial role in driving these reactions, which is why photochemical smog is more prevalent in areas with abundant sunlight and high levels of NOx and VOC emissions.

It's important to note that efforts have been made to reduce NOx and VOC emissions through the implementation of stricter regulations and the development of cleaner technologies. However, these pollutants still remain significant contributors to photochemical smog in many urban areas.

Learn more about Photochemical smog

brainly.com/question/27960448

#SPJ11

Answer:

As a substance changes from a solid to a liquid to a gas, its molecules first the molecules are moving fast enough, they are able to "escape." They leave the surface of the liquid as gas molecules. Evaporation is not the only process that can change a substance from a liquid to a gas. The same change can occur through boiling.

Explanation:

hopfully this helps!

A scientific law is different from a scientific theory because it describes something in nature without attempting to explain it, this statement is true.

A scientific law foretells the outcomes of particular beginning circumstances. It may tell you what color hair your unborn kid would have or how far a baseball will go when fired at a specific angle.In contrast, a theory seeks to offer the best plausible justification for why events take place the way they do.

A scientific law often describes an observable phenomena. It doesn't explain the phenomenon's existence or its origins. A scientific theory is the explanation for a phenomena. It is untrue that with enough study, hypotheses become laws.

Thus, a scientific law is different from a scientific theory because it describes something in nature without attempting to explain it, this statement is true.

To learn more about difference between scientific theory and scientific  law follow the link;

https://brainly.com/question/1308851

#SPJ1

The first person to use heating processes to preserve foods was Nicholas Appert. He discovered that food can be kept from spoiling by heating it and sealing it in airtight containers.

Nicholas Appert, a French confectioner, invented the method of canning food in 1809. He conducted a series of experiments to find a way to preserve food for long periods without it spoiling. Appert discovered that food can be kept from spoiling by heating it and sealing it in airtight containers.

He used glass jars with cork stoppers, which he sealed with wax and then boiled. Appert's invention was later improved by others, such as Louis Pasteur, who showed that the process of heating kills microorganisms that cause food to spoil. Today, canning is a common method used to preserve food, and it is used to produce a variety of food products, including fruits, vegetables, meats, and fish.

Learn more about microorganisms here:

https://brainly.com/question/11115878

#SPJ11

The shear stress τ is 48,750 ksi.

Shear stress is a type of stress that occurs when two parallel forces act on a material in opposite directions. It causes a deformation of the material parallel to the direction of the forces. Generally, shear stress is caused by friction or a torsional force.

The torque applied to an aluminium rod of length 10 ft and diameter 1 inch will cause a shear stress on the rod. To calculate the stress, we need to use the formula τ = G*θ*d/2, where G is the shear modulus, θ is the angle the rod is rotated, and d is the diameter of the rod.

In this case, the shear modulus (G) is 3,900 ksi, the angle the rod is rotated (θ) is 25°, and the diameter (d) is 1 inch.

Therefore, the shear stress τ = 3,900 ksi * 25° * 1 inch/2 = 48,750 ksi.

To know more about Shear stress  click on below link:

https://brainly.com/question/12910262#

#SPJ11

Answer:

6

Explanation:

the sig figs are 850320

Answer:

0.468 m

Explanation:

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

Mass of napthalalene (C₁₀H₈) = 30 g

Mass of toulene = 500 g

Molality =?

Next, we shall determine the number of mole in 30 g of C₁₀H₈. This can be obtained as follow:

Mass of C₁₀H₈ = 30 g

Molar mass of C₁₀H₈ = (12×10) + (8×1)

= 120 + 8

= 128 g/mol

Mole of C₁₀H₈ =?

Mole = mass / molar mass

Mole of C₁₀H₈ = 30 / 128

Mole of C₁₀H₈ = 0.234 mole

Next, we shall convert 500.0 g of toulene to Kg. This can be obtained as follow:

1000 g = 1 Kg

Therefore,

500 g = 500 g × 1 Kg / 1000 g

500 g = 0.5 Kg

Finally, we shall determine the molality of the solution. This can be obtained as follow:

Mole of solute (C₁₀H₈) = 0.234 mole

Mass of solvent (toulene) = 0.5 Kg

Molality =?

Molality = mole of solute / Kg of solvent

Molality = 0.234 / 0.5

Molality = 0.468 m

Answer:6.7103x10^5 km

Explanation:

The planet is at a distance of about 6.71030 ×10⁵ km. Therefore, option (c) is correct.

Scientific notation is a way of representing a quantity as a number having significant digits that are necessary for a specified degree and multiplied by ten to the power.

The general form of scientific notation can be written as \(N \times 10^{a}\).

A significant digit is that digit in a number which adds to its precision. A significant includes all nonzero numbers, zeros between significant digits, and zeros represent to be significant while leading and trailing zeros are not significant digits as they exist only to represent the scale of number.

Given, using the scientific notation method we can write the scientific notation of the distance of 671,030 km.

The number 671,030 km can also be written as 6.71030 ×10⁵ km.

Therefore, the correct way to write this distance in the scientific notation of  671,030 km is 6.71030 ×10⁵ km.

Learn more about scientific notation, here:

https://brainly.com/question/18073768

#SPJ5

The concentration of acetic acid in the vinegar sample is 3.30 M.

In this titration problem, we can use the balanced chemical equation for the reaction between acetic acid and sodium hydroxide:

CH3COOH (acetic acid) + NaOH (sodium hydroxide) → CH3COONa (sodium acetate) + H2O (water)

From the equation, we can see that the stoichiometric ratio of acetic acid to sodium hydroxide is 1:1. This means that the number of moles of sodium hydroxide used in the titration is equal to the number of moles of acetic acid in the vinegar sample.

We can start by calculating the number of moles of sodium hydroxide used:

n(NaOH) = M(NaOH) x V(NaOH)

n(NaOH) = 0.596 mol/L x 25.5 mL / 1000 mL/L

n(NaOH) = 0.0152 mol

Since the stoichiometric ratio of acetic acid to sodium hydroxide is 1:1, the number of moles of acetic acid in the vinegar sample is also 0.0152 mol.

Now we can calculate the concentration of acetic acid in the vinegar sample:

M(CH3COOH) = n(CH3COOH) / V(CH3COOH)

We have the number of moles of acetic acid, but we need to calculate the volume of the vinegar sample used in the titration. Since we know the initial volume of the vinegar sample (30.1 mL), we can use the volume of sodium hydroxide used (25.5 mL) to calculate the volume of acetic acid in the vinegar sample:

V(CH3COOH) = V(titrant) - V(NaOH)

V(CH3COOH) = 30.1 mL - 25.5 mL

V(CH3COOH) = 4.6 mL

Now we can calculate the concentration of acetic acid in the vinegar sample:

M(CH3COOH) = 0.0152 mol / 4.6 mL / 1000 mL/L

M(CH3COOH) = 3.30 mol/L

Therefore, the concentration of acetic acid in the vinegar sample is 3.30 M.

Learn more about stoichiometry

brainly.com/question/30215297

#SPJ11

Answer:

I'm pretty sure it's The second one

Explanation:

That one is the only one that looks like it started on a positive 5

Answer:

B

Explanation:

Answer: The statement that describes a chain reaction brought about by a nuclear reaction is "neutrons released during a fission reaction cause other nuclei to split." This is applicable to fission reactions only wherein atoms split and produce neutrons that also cause further atoms to split, thus creating a chain or series of reactions.

plz mark brainliest

Therefore, the pH of a 7.00×10^-6 M solution of HCNHCN is approximately 7.73, ignoring the effects of the autoprotolysis of water.

To calculate the pH of a solution of HCNHCN, we need to consider the dissociation of the acid and its equilibrium constant (Ka).

The equation for the dissociation of HCNHCN can be written as:

HCNHCN ⇌ H+ + CN-

Given that HCNHCN is a monoprotic weak acid with a Ka value of 4.90×10^-10, we can set up an equilibrium expression:

Ka = [H+][CN-] / [HCNHCN]

Since we are given the concentration of the acid as 7.00×10^-6 M, we can assume that the initial concentration of [HCNHCN] is equal to the given concentration.

Let x be the concentration of [H+] and [CN-]. Since the acid is monoprotic, the concentrations of [H+] and [CN-] will be equal to each other.

Using the equilibrium expression, we have:

4.90×10^-10 = (x)(x) / (7.00×10^-6)

Solving for x, we find:

x = √(4.90×10^-10 * 7.00×10^-6) ≈ 1.86×10^-8

Now, we can calculate the pH using the formula:

pH = -log[H+]

pH = -log(1.86×10^-8) ≈ 7.73

Therefore, the pH of a 7.00×10^-6 M solution of HCNHCN is approximately 7.73, ignoring the effects of the autoprotolysis of water.

Learn more about acid here: brainly.com/question/29796621

#SPJ11.

Total heat generated by 2 mole of TiO2(s) is 4.963kJ.

The amount of heat released in the reaction of 2.89 mol of TiO2(s) can be calculated using the following equation: q = nCΔT, where n is the number of moles, C is the specific heat capacity of TiO2, and ΔT is the change in temperature.

The specific heat capacity of TiO2 is 683. 697. J/kgK. and the change in temperature is is 25k. By plugging in the values and converting J to kJ,

q = 2.89 * 25 * 683.697

=> 4963.35

In brief, the amount of heat released by 2.89 mol of TiO2(s) is 4.963kJ.

To know more about specific heat capacity click on below link:

https://brainly.com/question/16952828#

#SPJ11

Complete question :

determine how much heat (in kj) of 2.89 mol of tio2(s) with a temperature difference of 25k

When a 0. 1 m aqueous solution of hydrocyanic acid, HCN, reaches equilibrium, the ka for hydrocyanic acid is  3.969 x 10⁻¹⁰.

It's the value of equilibrium constant for the dissociation of ions into a solution. The more the Ka value the more will be dissociation.

Ka = [H₃O⁺]² / [HCN] [H₃O⁺]

The pH is 5.20

-log [H₃O⁺] = 5.20

Putting antitlog both side.

The value will be 6.30 x 10⁻⁶

Ka = (6.30 x 10⁻⁶)²  / 0.1 - 6.30 x 10⁻⁶

0.1 - 6.30 x 10⁻⁶ = 0.1

Ka = 3.969 x 10⁻¹⁰

Thus, the Ka value for hydrocyanic acid is 3.969 x 10⁻¹⁰.

To learn more about ka value, refer to the link:

https://brainly.com/question/2796803

#SPJ4

Answer:

Explanation:For an atom to be stable the outmost shell most be filled with electron i.e it most obey the octet rule which state that for an atom to be stable it most be fully filled with electron in there outermost shell.

folic Acid

Folic acid, often known as folate, is a water-soluble B vitamin that is necessary for the generation of healthy red blood cells and the regular functioning of the brain system. Folate is present in numerous foods, including leafy green vegetables, legumes, nuts, and grains. Numerous processed goods, including breakfast cereals, breads, and rice, contain it as well. Folic acid is essential for pregnant women because it prevents birth abnormalities. It is also crucial for people of all ages since it helps maintain the health and normal operation of the body's cells. Folic acid is also essential for the production and repair of DNA, as well as the breakdown of specific proteins. Without appropriate folic acid, the body cannot produce red blood cells effectively, which can result in anemia. It is essential to consume adequate amounts of folic acid through diet or supplementation.

Please read more on

brainly.com/question/29704143

#SPJ4

Answer: here is the answer, I tried. lol, remember to re-write it!

The first stage is where it rains into grass, water, anything. Then it goes into the air and into more clouds, and produce more rainfall, which is evaporation. After that, it goes into precipitation, where it can cause hair, mist, rain, or snow. Then condensation, where water collects droplets when there is humid air, into the clouds. Then runoff, where the water is transported to a new location to produce rainfall.

Answer:

P2 = 2.25 atm

Explanation:

Given:

V1 = 1.5 L. V2 = 2.0 L

P1 = 3.0 atm. P2 = ?

Use Boyle's law and solve for P2:

P1V1 = P2V2

or

P2 = (V1/V2)P1

= (1.5 L/2.0L)(3.0 atm)

= 2.25 atm

The chemical equation that describes a precipitation reaction is option B:

BaBr₂(aq) + H₂SO₄(aq) → BaSO₄(s) + 2HBr(aq)

In this equation, when barium bromide (BaBr₂) reacts with sulfuric acid (H₂SO₄), it forms barium sulfate (BaSO₄) as a solid precipitate, which is indicated by the "(s)" state symbol. The other product formed is hydrobromic acid (HBr) in the aqueous state, as indicated by the "(aq)" state symbol.

Precipitation reactions occur when two aqueous solutions react to form an insoluble solid product, known as a precipitate. In this case, the barium sulfate precipitates out of the solution as a solid, indicating a precipitation reaction.

To know more about Precipitation reaction:

https://brainly.com/question/30696406

#SPJ4

From the balanced chemical equation, we can see that the mole-to-mole ratio of water (H2O) to oxygen gas (O2) is 2:1.

The mole-to-mole ratio of water (H2O) to oxygen gas (O2) can be determined from the balanced chemical equation for the combustion of hydrogen gas (H2) in the presence of oxygen gas (O2) to produce water (H2O). The balanced chemical equation for this reaction is:

2 H2 + O2 -> 2 H2O

This means that for every 2 moles of water (H2O) produced in the combustion of hydrogen gas (H2), 1 mole of oxygen gas (O2) is consumed. Similarly, for every 1 mole of oxygen gas (O2) consumed, 2 moles of water (H2O) are produced.

Learn more about moles at:

https://brainly.com/question/29367909

#SPJ1

Answer: yes

Explanation: Light receptors within the eye transmit messages to the brain, which produces the familiar sensations of color. Newton observed that color is not inherent in objects. Rather, the surface of an object reflects some colors and absorbs all the others. We perceive only the reflected colors.