Suppose you have 6 miles of ethanol(C2H6O)to combust.How many moles of oxygen will the combustion use?

Answers

Answer 1

Answer: 18 moles of oxygen will be used.

Explanation:

Combustion is a chemical reaction in which a hydrocarbon is oxidized in the presence of oxygen to give carbon dioxide and water.

The balanced chemical reaction for combustion of ethanol is:

[tex]C_2H_6O+3O_2\rightarrow 2CO_2+3H_2O[/tex]

According to stoichiometry :

1 mole of ethanol require  = 3 moles of [tex]O_2[/tex]

Thus 6 moles of ethanol will require=[tex]\frac{3}{1}\times 6=18moles[/tex]  of [tex]O_2[/tex]

Thus 18 moles of oxygen will be used.


Related Questions

How many grams of NaCl is needed to make 750mL of a 2.4 M NaCl solution?

Answers

Answer:

Molarity of the solution = 3.000 M

Volume of the solution = 250.0 mL = 0.25 L

moles in 250.0 mL = molarity x volume of the solution

                             = 3.000 M x 0.25 L

                             = 0.75 mol

Hence, 0.75 mol of NaCl is needed to prepare 250.0 mL of 3.000 M NaCl solution.

Moles (mol) = mass (g) / molar mass (g/mol)

Moles of NaCl in 250.0 mL = 0.75 mol

Molar mass of NaCl           = 58.44 g/mol

Mass of NaCl in 250.0 mL = Moles x Molar mass

                                         = 0.75 mol x 58.44 g/mol

                                         = 43.83 g

Hence, 43.83 g of NaCl is needed to prepare 250.0 mL of 3.000 M solution.

Explanation:

extremely hot.When a student went to open the car doo , he burned his finger. What two forms of energy were responsible for the student burning his fingers

Answers

Answer:

radiation and conduction

Explanation:

During a warm summer day, a car became extremely hot. When a student went to open the car door, he burned his fingers. What two forms of energy were responsible for the student burning his fingers?

Solution:

Heat is the transfer of energy from a warmer object to a cooler object. For heat transfer to occur, there have to be a difference in temperature between two objects.  

Heat can be transferred in three ways: by conduction, by convection, and by radiation.

Conduction is the transfer of thermal energy between bodies through direct contact. Convection is the transfer of thermal energy through the movement of heat in a liquid or gas. Radiation is the transfer of thermal energy through thermal emission by electromagnetic waves.

During a warm summer day, The sun makes the car to become hot through energy transfer from the sun to the car. When the student touch the car, there is heat transfer as a result of conduction.

¿Cuántos gramos de dicloruro de manganeso se obtienen cuando reaccionan 7,5 g de ácido clorhídrico? MnO2 + 4 HCl = Mn Cl2 + Cl2 + 2 H2O *

Answers

Answer:

6.6 g

Explanation:

La ecuación de la reacción es;

MnO2 + 4 HCl -------> MnCl2 + Cl2 + 2H2O

Número de moles de HCl que reaccionan = 7.5g / 36.5 g / mol = 0.21 moles

Dado que;

4 moles de HCl producen 1 mol de MnCl2

0,21 moles de HCl producen 0,21 * 1/4 = 0,0525 moles de MnCl2.

Masa de MnCl2 = 125,844 g / mol * 0,0525 moles = 6.6 g

UGRENT! Please help showing all work

Answers

Answer:

a. Oxygen

b. 20.39g of Al₂O₃

c. 87%

Explanation:

In order to produce 2moles of Al₂O₃, we need to make react 4 moles of Al, to 3 moles of O₂.

We determine the limiting reactant with the moles of each:

12.98g / 26.98g/mol = 0.481 moles of Al

9.6g / 32g/mol = 0.300 moles of oxygen

4 moles of Al react to 3 moles of O₂

Then, 0.481 mol may react to (0.481 . 3)/4 = 0.361 moles

We only have 0.300 moles of O₂ and we need 0.361. Oxygen is the limiting reactant.

So 3 moles of O₂ can produce 2 moles of Al₂O₃

Our 0.300 moles may produce (0.300 . 2) / 3 = 0.200 mol

Our theoretical yield is: 0.2 mol . 101.96g/ mol = 20.39 g

To determine the percent yield we calculate:

(Produced yield/ Thoeretical yield) . 100 → (17.74 /20.39) . 100 = 87%

What is the correct order for the development of the atomic model

Answers

Answer: I think it's A. C-A-D-B

Explanation:

John Dalton's theory was publicized in 1803

J.J Thomson's theory was publicized in 1904

Ernest Rutherford's theory was publicized in 1911

And Neil Bohr's was publicized in 1926

Think of a real-life situation in which measuring work and power would be important

Answers

Answer:

Being a CEO holds a lot of power and work but, you would need to be able to manage thus power to be able to keep your company running in good hands. work comes in because as a ceo you'll obviously have lots of work but you'll also have employees all of which assist you with managing work

Which of the following would cause entropy to decrease?
A. CO2(g) → C02()
B. CO2(s) + CO2()
C. CO2() + CO2(9)
D. CO2(s) → C02(9)

Answers

The change that would cause entropy to decrease is CO2 gas changing to solid:

CO2(g) → C02(s)

What is entropy?

Entropy refers to the degree of randomness of a substance.

The higher the degree of randomness the higher the entropy value of that substance.

Entropy increases with increase in temperature as particles of substances gain more kinetic energy.

However, lowering temperature decreases entropy values.

The change from gas to liquid or solid involves lowering of temperature.

Therefore, the change that would cause entropy to decrease is CO2 gas changing to solid.

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A tank consists of a gaseous mixture of 3.83 g of triselenium diiodide, 2.62 g of ammonium telluride, and 1.82 g of iridium (i) sulfate. What is the partial pressure in atm of ammonium telluride if the total pressure in the tank is 2.795 atm?

Answers

Answer: The partial pressure in atm of ammonium telluride is 1.48 atm

Explanation:

According to Raoult's law, the partail pressure of a component at a given temperature is equal to the mole fraction of that component multiplied by the total pressure

[tex]p_A=x\times p_{total}[/tex]  

where, x = mole fraction

[tex]p_A[/tex] = partial pressure of A

[tex]p_{total}[/tex] = total pressure  

[tex]x_{\text {ammonium telluride}}=\frac{\text {moles of ammonium telluride}}{\text {total moles}}[/tex],  

[tex]x_{\text {ammonium telluride}}=\frac{\frac{2.62g}{164g/mol}}{\frac{2.62g}{164g/mol}+\frac{3.83g}{333g/mol}+\frac{1.82g}{673g/mol}}=0.53[/tex]

[tex]p_{\text {ammonium telluride}}=0.53\times 2.795atm=1.481atm[/tex]

Thus the partial pressure in atm of ammonium telluride is 1.48 atm

The job of the ______ is to hold all of the parts of a cell together

Answers

Answer:

cell membrane

Explanation:

it holds everything together

How do ethnics affect scientific research ?

Answers

Answer:

A

Explanation:

scientists should not be allowed to conduct research that is harmful to others.

I thinks it B because it makes more sense.

How do collisions between molecules transfer energy from a system of
reacting substances to its surroundings?
A. They cause heat to flow from the system to the surroundings.
O B. They cause molecules to flow into the system from the
surroundings
C. They cause the potential energy of the system to increase
D. They cause the thermal energy of the surroundings to decrease.

Answers

Answer:

A. They cause heat to flow from the system to the surroundings.

Explanation:

Answer:

A. They cause heat to flow from the system to the surroundings.

Explanation:

a p e x , just took the quiz

What do YOU think? Is the movement to 100% renewable energy possible? Why, or why not?

Answers

Answer:

i dont know

Explanation:

ask your science teacher

3. You believe that water boils at 212 degrees Fahrenheit (100 degrees Celsius). Write the numberon the scale from best to worst.

1. Your cousin said that he tested the temperature of water boiling and found that it was 100°C.
2. Most people you know believe that water boils at 100°C.
3. You used a thermometer to measure the temperature at which water boiled. You repeated the experiment 3 times. Each time the thermometer read 100°C.
4. You read an article in a science journal from 50 different labs around the world that have tested the temperature of water and found that it boils at 100°C in every location.

Answers

You come across an article in a scientific journal from 50 different laboratories around the globe that measured the boiling point of water and discovered that it is 100°C everywhere.

What transpires when water is heated to 100 C (This is 212 F)?

Water turns into gas around 212°F (100°C), which is the temperature at which it begins to boil (water vapor). Pressure affects the melting/freezing and boiling points. Water's boiling point changes when air pressure changes. The boiling point decreases with increasing altitude or decreasing pressure.

At 212 degrees Fahrenheit, does water boil, or at 100 degrees?

Water has a freezing point of 32 degrees Fahrenheit and a boiling point of 212 degrees Fahrenheit on the Fahrenheit scale.

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The physical state of CaBr2 at room temperature? Predict the two other properties of CaBr2 Deduce the charge of ion Ca in the compound CaBr2

Answers

Answer:

CaBr2 is a colorless solid and the charge on Calcium is +2

Explanation:

CaBr2 is a colorless solid at room temperature.

Other properties include -

a) It is a crystalline solid

b) Melting point of 765°C.

c) It is deliquescent

d) Soluble in water and absolute alcohol.

The charge of Br is -1. Here two atoms of Br attaches with one atom of calcium. Hence the charge of calcium is +2

25 grams of methane (CH4) is placed inside a constant volume colorimeter. After the fuel is burned, the temperature rises by 45 degrees Celsius. If the heat capacity of the calorimeter is 5.57 kJ/C, what is the heat released?

Answers

An s w e r:

Explanation:

1.Which type of text structure describes events in sequential order? A.sequence B.Cause and Effect. C. Problem And Solution. D. Compare and Contrast



2.This type of writing considers similarities and differences
A.Discripsion B.Compare and Contrast C. Sequence. D.Cause and Effect


3.in this type of writing,the reader will see words/phrases such as cause,as a result of,and due to.
A.Cause and Effect
B.Promlem and Solution
C.Order And Sequence
D.Compare And Contrast​

Answers

Answer:

1 would be a. sequence

2 would be b. compare and contrast

3 would be a. cause and effect

What is the molecular formula for Hydrochloric acid​

Answers

Answer:

HCI

Explanation:

Hope this helps. :))))

Which type of galaxy contains mostly new stars because it has lots
of dust and gas

Answers

Spiral galaxies .........

Pls help match the following

Answers

Answer:

citric acid = orange

I know the answer for this only..

If we want to store the energy produced from a wind turbine, where do we store the energy?
Please help
I will give you Brainliest

Answers

answer:

it is usually stored in large above-ground tanks or in underground caverns

good luck :)

hopefully, this helps

have a great day !!

**next time you should try goo-gling it, it'll save you the points :)**

How many moles are in 3.0g of A1203?

Answers

Answer:

0.065 moles

Explanation:

Maya made this picture to represent a chemical reaction:

Which of the following statements best explains the type of chemical reaction represented by Maya's picture?

It is neither a synthesis reaction nor a decomposition reaction because two reactants form two products.

It represents a decomposition reaction because two reactants break apart and form two products.

It is neither a synthesis reaction nor a decomposition reaction because the total mass of the products is less than the total mass of the reactants.

It represents a synthesis reaction because the same atoms are present in the reactants and products.

Answers

Answer:

It is neither a synthesis reaction nor a decomposition reaction because two reactants form two products.

Explanation:

This reaction would be considered a single replacement reaction.

The chemical reaction involves the products and the reactants. The image is neither synthesis nor decomposition as the two products are formed from two reactants. Thus, option A is correct.

What is a chemical reaction?

A chemical reaction includes the chemical interaction between the reactants to yield the products. In a synthesis reaction, two reactants interact to produce a different molecule or compound.

In a decomposition reaction, a reactant undergoes splitting to produce products and energy. But in the image two reactants produces two products that neither of the reaction shows.

This type of reaction is seen as the single replacement reaction where the more reactive element displaces the less reactive from the compound to form the new molecule.

Therefore, option a. Maya's picture represents a single replacement reaction but not a synthesis or decomposition reaction.

Learn more about the chemical reactions here:

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URGENT
What is the total volume of a lead can if it has a mass of 800g.

Answers

Answer:

750

Explanation:

10. Which one of the following is not true about covalent bonds?
Most covalent substances do not dissolve well in water
Covalent bond can form polar and non polar bonds and shape
Covalent bond is one of the strongest bonds
Most of covalent substance does not conduct heat and electricity
Most covalent bonds have moderate to love melting and boiling point

Answers

Answer:

Most covalent bonds have moderate to love melting and boiling point

Explanation:

Most covalent compounds have relatively low melting points and boiling points.

Why do cations and anions form?

Answers

Because an element can gain or lose and electrons so they take them away to become stable like a noble gas

What is the total number of orbitals that can be found on third electron shell (n=3)? Answer with explanation​

Answers

Answer:

nine orbitals

Explanation:

There are nine orbitals in the n = 3 shell. There is one orbital in the 3s subshell and three orbitals in the 3p subshell. The n = 3 shell, however, also includes 3d orbitals.

PLEASE HELP DUE IN 1 hour PLS Moving from left to right across the periodic table, the shielding effect remains constant
within a period. Please explain why the shielding effect is constant. Limit your response
to one sentence. Use your own words to answer.

Answers

Answer:

Shielding effect is the decrease in the attractive force of the nucleus on tge valence electrons due to inner shell electrons. ... Shielding effect remains same across a period, that is because the number of shells are same for each element in a period. hope this helps!

how would a map of a galaxy be different from a map of a city?

Answers

Answer:

A map of the galaxy would be a lot bigger and have a lot more names such as planets, stars, etc. While a city would be more basic than a whole galaxy.

what are the formulas for the products of the reaction:
calcium chloride+ silver nitrate

Answers

Answer:

CaCl2 + 2AgNO3 = Ca(NO3)2 + 2AgCl

Explanation:

Calcium chloride react with silver nitrate to produce calcium nitrate and silver(1) chloride

UGRENT! Please help showing all work

Answers

Answer:

a. The limiting reactant is Ca(OH)₂

b. The theoretical yield of CaCl₂ is approximately 621.488 grams

c. The percentage yield of CaCl₂ is approximately 47.06%

Explanation:

a. The given chemical reaction is presented as follows;

Ca(OH)₂ + 2HCl → CaCl₂ + 2H₂O

Therefore;

One mole of Ca(OH)₂ reacts with two moles of HCl to produce one mole of CaCl₂ and two moles of water H₂O

The mass of HCl in an experiment, m₁ = 229.70 g

The mass of Ca(OH)₂ in an experiment, m₂ = 207.48 g

The molar mass of HCl, MM₁ = 36.458 g/mol

The molar mass of Ca(OH)₂, MM₂ =74.093 g/mol

The number of moles of HCl, present, n₁ = m₁/MM₁

∴ n₁ = m₁/MM₁ = 229.70 g/(36.458 g/mol) ≈ 6.3 moles

The number of moles of Ca(OH)₂, present, n₂ = m₂/MM₂

∴ n₂ = m₂/MM₂ = 207.48 g/(74.093 g/mol) ≈ 2.8 moles

The number of moles of Ca(OH)₂, present, n₂ = 2.8 moles

According the chemical reaction equation the number of moles of HCl the 2.8 moles of Ca(OH)₂ will react with, = 2.8 × 2 moles = 5.6 moles of HCl

Therefore, there is an excess HCl in the reaction and Ca(OH)₂ is the limiting reactant

b. According the chemical reaction equation the number of moles of CaCl₂ produced in he reaction by the 2.8 moles of Ca(OH)₂ = 2.8 × 2 moles = 5.6 moles of CaCl₂

The molar mass of CaCl₂ = 110.98 g/mol

The mass of the 5.6 moles of CaCl₂ = 5.6 moles × 110.98 g/mol ≈ 621.488 grams

The theoretical yield of CaCl₂ ≈ 621.488 grams

c. Given that the actual mass of CaCl₂ produced = 292.5 grams, we have;

The percentage yield of CaCl₂ = The actual yield/(The theoretical yield) × 100

∴ The percentage yield of CaCl₂ = (292.5 g)/(621.488 g) × 100 ≈ 47.0644646397%

The percentage yield of CaCl₂ ≈ 47.06%.

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