A newspaper article about the danger of global warming from the accumulation of greenhouse gases such as carbon dioxide states that "reducing driving your car by 20 miles a week would prevent release of over 1000 pounds of CO2 per year into the atmosphere." Is this a reasonable statement? Assume that gasoline is octane (molecular formula is C8H18) and that it is burned completely to CO2 and H2O in the engine of your car. Facts (or reasonable guesses) about your car's gas mileage, the density of octane, and other factors will also be needed.

Answers

Answer 1

Answer:

The newspaper article's statement is correct since the mass of CO₂ reduced = 1071.85 pounds

Explanation:

Equation for the combustion of gasoline (octane) is given below:

2C₈H₁₈ + 25O₂ ---->  16CO₂ + 18H₂O

Density of C₈H₁₈ = 0.8 g/mL

Assuming mileage of the car is 20 miles/gallon; 1 gallon = 3.785 L

Since 20 miles is reduced in driving each week, thereby saving 1 gallon of gasoline, number of litres of gasoline reduced in a year is given by;

52 * 3.785 L = 196.82 L = 196820 mL

density = mass/volume; mass = density * volume

mass of gasoline saved = 0.8 g/mL * 196820 mL = 157456 g

number of moles = mass/molar mass

Molar mass of C₈H₁₈ = 114  g/mol

number of moles of C₈H₁₈ in 157456 g = 157456 g / 114 g/mol = 1381.2 moles

From the equation of reaction, 2 moles of C₈H₁₈ produces 16 moles of CO₂

1381.2 moles of C₈H₁₈ will produce 1381.2 * 16/2 moles of CO₂ = 11049.6 moles of CO₂

mass = number of moles * molar mass

molar mass of CO₂ = 44 g/mol

mass of CO₂ = 11049.6 moles * 44 g/mol = 486182.4 g

1 g = 0.00220462 pounds

Therefore mass of CO₂ reduced = 486182.4 g * 0.00220462 lb/g

mass of CO₂ reduced = 1071.85 pounds

Therefore, the newspaper article's statement is correct


Related Questions

Please help me It would mean everything!!

Answers

1. high

You are correct.

Cold region have more air pressure because air is denser.

(02.01 LC)
Which landform represents a large area of thick ice that moves slowly?

Answers

Answer:

Glacier

Explanation:

A glacier because glaciers contain thick layers of ice.

Match the term (exothermic) with the correct definition.

energy goes into the chemical and cool downs the surrounding area.

energy leaves the chemical and cools down the surrounding area

energy leaves the chemical and heats up the surrounding area

Answers

Answer:

energy leaves the chemical and heats up the surrounding area

Explanation:

BRAINIEST IF ANSWERED which of the following is a molecule ( A.HCl B.HK C.MgCl2 D.Kl)

Answers

Answer: A.HCI

Explanation:

1. How many times will a mole of paperclips (think giant paperclip chain) stretch around the equator of the
earth? (1 paperclip = 0.030 m, Earth's circumference = 4.00 x 10m)

Answers

Yea, it’s either earth (1 paperclip=0.030 m earths circumference = 4x10m)

1. H2SO4, sulfuric acid, contains three different types of atoms: hydrogen (H), sulfur (S), and oxygen (O). Each of these atoms represents a different . Since the three types are combined in a fixed ratio, this means that H2SO4 is a(n) molecule. 2. The smallest unit of matter that retain all of the physical properties of that type of matter is a(n) atom. 3. is anything that occupies space and/or has any substance. 4. If two or more atoms are bonded together, they form a(n) . 5. The scientific study of matter is called . 6. Within a plant, water (H2O) and carbon dioxide (CO2) can be combined (using the energy of sunlight) to produce glucose (C6H12O6) and oxygen (O2). If you were to write out this chemical reaction, water and carbon dioxide are each an example of a(n) while glucose and

Answers

Answer:

The blanks can be completed with words in the following sequence

1) elements

compound

2) atom

3) matter

4) compound

5) chemistry

6) reactants

product

Explanation:

In H2SO4, atoms of hydrogen, sulphur and oxygen represent different elements that are combined to form the compound.

The smallest indivisible unit of matter that still retains all the properties of matter is an atom. Matter is anything that has weight and occupy space.

Atoms combine in fixed ratios to form compounds. Chemistry studies matter scientifically and pays specific attention to the changes that matter undergoes.

Considering the reaction of photosynthesis, water and carbon dioxide combine to give glucose so the water and carbon dioxide  are reactants while the glucose is the product of the reaction.

collectiveness leads to a good society? how​

Answers

Answer:

A good society has a transparent talk, they share all matters related to the society, hence everyone knows what's going on. This is why collectiveness leads to a good society.

If my answer helped, kindly mark me as the brainliest!!

Thank You!!

Given the balanced equation representing a reaction:

4Al(s) + 3O2(g) → 2Al2O3(s)

Which type of chemical reaction is represented by this equation?

Answers

Answer:

The equation is already balanced.

The type of chemical reaction is oxidation

Explanation:

Oxidation is the addition of oxygen to a substance

Answer:

This type of reaction is a synthesis reaction

Explanation:

Why are ocean currents important to coastal regions?​

Answers

Answer:

Warm and cold ocean currents can affect the climate of an area along the coast if the winds blow in from the ocean. Warm ocean currents heat the air above the water and carry the warm air to the land, increasing the temperature of the coastal region.

Explanation:

Ocean currents are important to coastal regions for a number of reasons.

What are the importance?

Distribute heat. Ocean currents distribute heat around the globe, which helps to moderate the climate in coastal regions. For example, the Gulf Stream brings warm water from the Gulf of Mexico to the coasts of Europe, which helps to keep Europe's climate warmer than it would be otherwise.

Transport nutrients. Ocean currents transport nutrients from the ocean's depths to the surface, which supports marine life. For example, the California Current brings nutrients from the deep ocean to the surface, which supports a rich marine ecosystem off the coast of California.

Diversify marine life. Ocean currents help to diversify marine life by transporting different species to different parts of the ocean. For example, the Kuroshio Current brings warm water from the western Pacific Ocean to the eastern Pacific Ocean, which has helped to diversify the marine life in this region.

Find out more on coastal regions here: https://brainly.com/question/26796424

#SPJ6

I'll give brainliest

Answers

Answer: Nitrogen

Explanation:

How do i caculate speed

Answers

Answer:

Speed uses the same units as velocity, which is meters divided by seconds (m/s)

(It doesn't need to be m/s, but it's the most common unit. It's basically any unit of length divided by any unit of time)

hope this helps and good luck

Answer/Explanation:

Speed is a force and is solved by using acceleration.

You can use the problem to solve for force:

F= MA or Force equals mass times acceleration.

If the pressure of a 2.00 L sample of gas is 50.0 kPa, what pressure does the gas exert if its volume is decreased to 20.0 mL?

Which equation should you use?
use B.

✔ 5000
kPa

Answers

Answer:

P₂ = 5000 KPa

Explanation:

Given data:

Initial volume = 2.00 L

Initial pressure = 50.0 KPa

Final volume = 20.0 mL (20/1000=0.02 L)

Final pressure = ?

Solution:

The given problem will be solved through the Boly's law,

"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"

Mathematical expression:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = initial volume

P₂ = final pressure

V₂ = final volume  

Now we will put the values in formula,

P₁V₁ = P₂V₂

50.0 KPa × 2.00L = P₂ × 0.02 L

P₂ = 100 KPa. L/0.02 L

P₂ = 5000 KPa

im not sure for this one please help me​

Answers

Answer:

Fairly certain it is the tension of the string

Answer:It would be C

6. Write the full symbol for an atom with 1 proton, 2 neutrons, and 0 electrons.

Answers

Answer:

The element hydrogen has the simplest atoms, each with just one proton and one electron. The proton forms the nucleus, while the electron orbits around it.

Explanation:

Earth's atmosphere blocks short wavelengths of the electromagnetic spectrum. Which telescopes must be places in orbit around Earth in order to observe short-wavelength radiation?

Answers

Answer: gamma-ray telescopes

Explanation:

this is the answer because the question is asking what telescope must be

placed to observe SHORT-WAVELENGTH radiation. Gamma-rays have very short wave-lengths so therefore it would be gamma-ray telescopes. visible, infrared, and radio all have long wave-lengths, so we can instantly eliminate them.

The Earth's atmosphere is known to be able to blocks all X-rays from space.  telescopes must be places in orbit around Earth in order to observe short-wavelength radiation is gamma-ray telescope.

X-rays is known to have high energy that are in reflecting telescope. Gamma rays from space is commonly blocked by the Earth's atmosphere as the radiation is lethal.

Gamma-ray telescope is known to be an instrument that is created to detect and resolve gamma rays from space. that is beyond Earth's atmosphere.

This rays are able too be detected by the optical flashes that they emit when interacting with the material in a particular defined instrument.

Learn more about Gamma-ray telescope from

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If an ion gains one or more electrons, it becomes a

Answers

The answer is anion hope that helps

Answer:a negative charge

Explanation:

while an atom that gains electrons and becomes negatively charged is known as an anion.

The density of red wine is 1.01g/cm3 and the density of olive oil is 0.92g/cm3.A salad dressing that consisted of these two ingredients was left sitting too long.The ingredients separated in the bottle ,which ingredient is which layer? Explain.

Answers

Answer:

The olive oil will be on top of the vinegar, this is because the density is more

Explanation:

since vinegar has a higher density than oil it will sink to the bottom of the bottle. subsequently oil will raise up. thus oil higher layer vinegar lower layer! :) . concentration in g/L....what u are given is 5.4g and 50ml

so first change the ml into L

50ml = 0.050L

now... 5.4g/0.050L = 108g/L

resolve in significant figures is 1.1 x 10^2 g/L

b. molarity = mol/L

L = 0.050 (calculated from above)

now we only have to convert the grams (5.4g) into mols

there are three elements in sucrose ( C = carbon, H = hydrogen

and O = oxygen)

look at the periodic table and find their molar mass (atomic weight)

Carbon = 12.0g/mol

Hydrogen = 1.00g/mol

Oxygen = 16.0g/mol

Sucrose contains 12 carbons, 22 hydrogens, and 11 oxygens

So the total molar mass of sucrose =

Carbon - 12 x 12.0 = 144

Hydrogen - 22 x 1.00 = 22

Oxygen - 11 x 16.0 = 176

Total = 144 + 22 + 176 = 342g/mol

Now u have 5.4grams of sucrose to change to mols u:

5.4 grams x 1 mol/ 342grams

in other words 5.4 grams / 342 grams leaving u with mols

= 0.0158 mols

now your concentration in molarity will be:

0.0158 mols / 0.050L = 0.32M (two significant figures)

and the unit is M which stands for mol/L

c. you are given 7M (aka mol/L)

you are given 100ml which equals 0.1L

7 mol/L x 0.1L = 0.7mol

all u have left to do is change the 0.7 mol back into grams

to do that we do the opposite of what we did in part b

in part b u took grams and changed it into mols

here we are taking mols and changing it back into grams

from part b we calculated the total molar mass = 342g/mol

so:

0.7 mol x 342 g/mol = 239.4grams

resolve into significant figures = 2 x 10^2 grams

perform the following operation and express the answer in scientific notation

Answers

Answer:

2×10⁻⁴

Explanation:

Given data:

2.8 ×10⁻⁶ + 1.4×10⁻²

Solution:

2.8 ×10⁻⁶ + 1.4×10⁻²

2×10⁻⁶⁺²

2×10⁻⁴

Scientific notation is the way to express the large value in short form.

The number in scientific notation have two parts.

. The digits (decimal point will place after first digit)

× 10 ( the power which put the decimal point where it should be)

for example the number 6324.4 in scientific notation will be written as = 6.3244 × 10³

explain how you would obtain pure water from tap water.Your answer must include reference to the principles involved under the topic separating mixture​

Answers

Answer:

Simple distillation

Which of the following best describes a vacuum?
Hot
Cold
Shiny
Empty

Answers

Answer:

hot

Explanation:

Answer:

The Answer is (Empty)

Record the mass of the object based on the reading from the triple-beam balance. The mass of the object is ____ grams.

Answers

Hello!

[tex]\large\boxed{167g}[/tex]

Looking at the balance, we see that:

The middle beam reads 100g.

The top beam reads 60g.

The bottom beam reads 7g.

Add all of the numbers together to get the total mass:

100 + 60 + 7 = 167g.

The mass of the object is 167 grams.

Explanation:

A triple beam balance is a mass measuring instrument used in labs to measure the mass of a substance. It unit in which it measures is grams. It consists of three beams which are: The middle beam has  Increments of 100 grams  The front beam has  Increments from 0 grams  to 10 grams  The farther beam has  Increments of 10 grams

Given :

Readings of all the scales of three beams of the triple beam balance of an object.

To find :

The mass of object whose reading on triple beam balance is given.

Solution:

Middle beam reader at 100 grams

Front beam reader at 7 grams

Farther beam reader at 60 grams

The mass of object:

[tex]100 grams + 7 garms + 60 grams = 167 grams[/tex]

The mass of the object is 167 grams.

Learn more about triple beam balance here:

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HELP PLEASE!!!!!!!!

Answers

P, since they both have an input force of 100 J, the one with the higher output by is more efficient.

Screwdriver P

What are the common characteristics among acidic compounds? Basic?

Answers

Answer:

turns blue litmus red

reacts with metal

increase hydrogen concentration

What is the name of the group that contains potassium?
O Noble Gases
O Halogens
O Alkaline Earth Metals
O Alkali Metals
Transition Metals

Answers

Answer:

Alkali Metals

Explanation:

helpppppppp meeeeeee

Answers

Answer:

Synthesis

General Formulas and Concepts:

Chemistry - Reactions

Synthesis Reactions: A + B → AB Decomposition Reactions: AB → A + B Single-Replacement Reactions: A + BC → AB + C Double-Replacement Reactions: AB + CD → AD + BC

Explanation:

Step 1: Define RxN

RxN:   NH₃ + H₂SO₄ → (NH₄)₂SO₄

Step 2: Identify

Combining 2 compounds to form 1.

NH₃ + H₂SO₄ → (NH₄)₂SO₄

A + B → AB

It is a Synthesis Reaction.

Click the picture please

Answers

Answer:

A chemical change can be indicated by a change in color, change in temperature (exothermic or endothermic), change in smell, formation of a precipitate, or the formation of gas bubbles.

Explanation:

this should work

We breathe it out and it takes it in. Your next clue is where photosynthesis begins.

Answers

Answer:

Carbon Dioxide?

Explanation:

When we take a breath, we pull air into our lungs that contains mostly nitrogen and oxygen. When we exhale, we breathe out mostly carbon dioxide.

______elements that have a longer half-life are more _______ than those that have a shorter half-life.

Answers

Answer:

Radioactive elements

Stable

Explanation:

Radioactive elements that have a longer half-life are more stable than those that a shorter half-life.

Half-life is the time taken for half of a radioactive element to decay by half of its original composition.

Now, if a substance have a long half-life, it is more stable and takes time to break down. For atoms with a short life, they are highly unstable and breaks down readily and easily.

formula equation is more informative than a word equation why​

Answers

Answer:

yes

Explanation:

this is because the formula equation shows the details on how they solved the equation

When a 0.4500 g sample of impure potassium chloride was dissolved in water and treated with an excess ofsilver nitrate, 0.8402 g of silver chloride was precipitated. Calculate the percentage KCl in the original sample.

Answers

Answer:

97.78% KCl in the original sample

Explanation:

The % of KCl in the original sample would be as follows:

[tex]97.78[/tex]%

Given that,

Amount of sample of impure Potassium Chloride [tex]= 0.4500 g[/tex]

Amount of Silver Nitrate precipitated [tex]= 0.8402g[/tex]

Now,

Molarity of KCl = [tex]74.5 g/mol[/tex]

Minimum moles required for reaction [tex]= 0.0059 mol[/tex]

Final number of moles  [tex]= 0.0059 mol[/tex]

So,

Concentration = Number of moles * Molarity

[tex]= 0.0059 mol * 0.74.5 g/mol\\= 0.440g[/tex]

Therefore,

% of KCl in the original Sample = Weight of Pure KCl/Weight of Impure KCl

[tex]= 0.440/0.450[/tex] × [tex]100[/tex]

[tex]= 97.78[/tex]%

Thus, [tex]97.78[/tex]% is the correct answer.

Learn more about "Potassium Chloride" here:

brainly.com/question/19613085

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and located just outside the town of Bartlesville, was Oklahoma's first commercial oil rig, known as producing oil by 1898. A. Glenn Pool B. Nellie Johnstone No. 1 C. Red Fork D. Grand Saline What good technique is the writer using in paragraph 3?Introduction: Almost all sports, whether Indoor or outdoor, require stamina and physical fitness.Paragraph 1 (thesis):Perhaps the most demanding sport requiring the most heart and lung actionIs marathon running.Body. Although many sports provide very strenuous exercise, they do not utilize all the majormuscles in the way that marathon running does...Paragraph 2:... muscles used in running ...Paragraph 3: Although a runner may die from a heart attack, most deaths among runners arecaused by incautious running, lack of proper training, or not receiving a thorough physicalexamination...Paragraph 4: Another important factor in marathon running is the variety of terrain that addseven more challenge to the runner's stamina. ..Paragraph 5: Most important of all are the statistics of longevity (long life) of marathon runners.Conclusiondiscouraging runnersusing opposing or different views Which health-related component should start your warm-up? A. FlexibilityB. Muscular strength and enduranceC. Reaction timeD. Cardiorespiratory y-3= 5(x - 2)NEED HELP What part of a scientific research report is most likely to explain the report's key findings?a) the abstractb) the graphs and tables He stared at the words that he had painstakingly crafted to tell the story of how his parents had immigrated to the United States from India.What does the word painstakingly mean?with great carewith unique qualitieswith intense reliefwith little attention What happened between the American (patriot) and the redcoat soldiers, John Goldfinch and Hugh White? What causes the wavelength of a particular beam of light change? A random sample of size 1,000 is taken from a population where p = .20. Find P( < .18). A. .9429 B. .0571 C. .2643 D. .0793 Answer this question (dont answer if you dont know) i will give brainliest he was upset because junior is his best friend and rowdy don t want junior to get transfer to other school.first he think he was kidding but he was for real. 10 2.5 16 4 ? 7.5 48 12 Which statement explains how to find the number of minutes it takes to bike 7.5 miles? Find the ratio of minutes to miles, 4:1. Divide 7.5 by 4. Find the ratio of minutes to miles, 4:1. Multiply 7.5 by 4. Find the difference between 16 and 10. Add the difference to 16. Find the difference between 16 and 10. Add the difference to 7.5. 3(x + 1) = 2(x 1) 4 Suppose A and B are points on the number line. If AB = 8 and B lies at 7, where could A be located?Select ALL that apply.111515 Please help asap and i will give you brainliest We can change the substance chemically byfreezing it. True or false Directions: Think of an adjective that matches the description. Write theadjective in your notebook,1. a car that has just been bought from a factorycar2. countries in Asia like the Philippines and Singaporecountries3. an anniversary being celebrated on the 50th yearanniversary4. a chair made of woodchair5. a building with ten floorsbuilding can someone please please help me? with a reasoning? :( Alannah has a puppy, she buys a leash for $3.99, a dog toy for $5.47, and one bag of dog food for $8.99. What is the minimum amt of money (x) Alannah has to have to purchase supplies for her puppy whats the value of x?