. Which conversion factor should you use first to calculate the number of grams of CO2 produced by the reaction of 50.6 g of CH4 with O2? The complete combustion of methane is described by this equation: CH4(g) + 2O2(g) → CO2(g) + 2H2O(l) 44.0 g CO2 / 2 mol CO2 16.0 g CH4 / 1 mol CO4 1 mol CH4 / 16.0 g CH4 2 mol O2 / 1 mol CO2

Answers

Answer 1
Final answer:

To calculate the number of grams of CO2 produced by the reaction of 50.6 g of CH4 with O2, we need to use the correct conversion factors. The first conversion factor to use is 1 mol CH4 / 16.0 g CH4, followed by 1 mol CO2 / 1 mol CH4, and finally 44.0 g CO2 / 1 mol CO2.

Explanation:

In order to calculate the number of grams of CO2 produced by the reaction of 50.6 g of CH4 with O2, we need to use the appropriate conversion factor. Based on the balanced chemical equation, we can see that the ratio between CH4 and CO2 is 1:1. Therefore, the correct conversion factor to use first is:

1 mol CH4 / 16.0 g CH4

This conversion factor allows us to convert the given mass of CH4 to moles of CH4.

Next, we can use the mole ratio from the balanced chemical equation to convert moles of CH4 to moles of CO2:

1 mol CO2 / 1 mol CH4

Finally, we can use the molar mass of CO2 to convert moles of CO2 to grams of CO2:

44.0 g CO2 / 1 mol CO2

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Related Questions

The compound FeCl3 is made of

Answers

Answer:

iron n chlorine

Explanation:

Answer:

The compound FeCl3 is made of IRON AND AND CHLORINE

Which of the following represents a compound?

Answers

Answer:

B) H2O

Explanation:

Compound is a pure substance composed of two or more different atoms chemically bonded to one another. Among all choices only H₂O is composed of two atoms, and other choices are composed of only one atom.  H₂O is the pure substance composed of chemically bonded two atoms (hydrogen atoms and oxygen atom).

Answer:

H₂O

Explanation:

Compound consists of combinations of elements. H (Hydrogen) is an element. O-16 and H-3 are stable isotopes of O (Oxygen) and H (Hydrogen), which are elements. H₂O is compound formed by two elements: Hydrogen and Oxygen.

Which of these will change if the air in a
closed bottle is heated?
A
B
C
D
the mass of the air
the composition of the air
the air pressure in the bottle
the number of air molecules in the bottle​

Answers

Answer:

The air pressure in the bottle will change.

Explanation:

According to Gay-Lussac's Law, one of the main gas laws, the pressure of gas is directly proportional to the temperature of the gas. This means that as the temperature of the gas increases, the pressure of the gas will increase as well. Therefore, if you heat a closed bottle, the air pressure inside the bottle will change (increase).

Consider the nuclear equation below.

239 pu------------>x + 4 He
94 2

What is X?
1.235 Cm
96

2.243 U
92

3.235 U
92

4.243 Cm
96

Answers

Answer:

²³⁵₉₂U

Explanation:

Properly writing the equation we have:

       ²³⁹₉₄Pu → ᵃₙX + ⁴₂He

The unknown atom here is X with mass number "a'' and atomic number ''n''

In balancing chemical equations, the mass number and atomic number must be conserved. This implies that the sum of atomic numbers i.e subscript on the left hand side must be equal to that on the right hand side. Also, the sum of the mass numbers i.e superscript on the left hand side must be equal to that on the right hand side.

For the mass numbers:

       239 = a + 4

      a = 239 - 4 = 235

For atomic numbers:

     94 = n + 2

      n = 94 -2 = 92

The atom X, has a mass number of 235 and an atomic number of 92.

This is can be written as ²³⁵₉₂X

This is option 3

Diamond, graphite, and fullerenes share what property? A. They are all made of carbon (C) bonded to a metal. B. Their shape. C. They are all made of carbon (C). D. They are all good conductors.

Answers

Answer:

They are all made of carbon

Explanation:

Diamond, graphite, and fullerenes are all made of carbon.

Hope this helps!

Diamond, graphite, and fullerenes "Are all made of carbon".

What is a Diamond?

The crystal structure known as diamond cubic would be used to describe the solid form of something like the element carbon known as diamond.

What are fullerenes?

Due to its resemblance to the appearance of a soccer ball, fullerenes with a spherical shape are frequently described as "buckyballs" or Buckminster fullerenes.

Therefore, the correct answer is an option (A)

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Which of the following isotopes has the same number of neutrons as phosphorus-31?

Answers

Answer: 32/16S which is sulfur

The isotopes that carry the exact same number of neutrons as they are in phosphorous-31 would be:

32/16S

The isotopes are described as the formations of element(two or more) that contains exact same proton numbers yet a distinction in the number of neutrons inside the nuclei.This leads the atomic isotopes to possess similar atomic numbers yet a varied mass number.The isotopes that carry the exact same number of neutrons as they are in phosphorous-31(16 neutrons) would be Sulphur(16 electrons).

Thus, 32/16S is the correct answer.

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not sure how to write this question so I will add an image

Answers

Answer:

2H3PO4 + 3Ca(OH)2 = Ca3(PO4)2 + 6H2O

3CaO + P2O5 = Ca3(PO4)2

Explanation:

1) When phosphoric acid reacts with calcium hydroxide neutralization reaction takes place in which calcium phosphate is formed along with formation of water.

The balanced chemical equation is give as:

[tex]2H_3PO_4+3Ca(OH)_2\rightarrow Ca_3(PO_4)_2+6H_2O[/tex]

2) When calcium oxide acid reacts with phosphorus pentoxide addition reaction takes place in which calcium phosphate is formed.

The balanced chemical equation is give as:

[tex]3CaO+P_2O_5\rightarrow Ca_3(PO_4)_2[/tex]

What area of study in chemistry is concerned with the heat transfers that occur during chemical reactions?

Answers

Answer:

Thermochemistry

Explanation:

Thermochemistry is the area of study in chemistry that is concerned with the heat transfers that occur during chemical reactions.

Thermochemistry is an area of study that's concerned with heat transfer during chemical reactions.

What kind of chemical reaction does the chemical equation sodium + chlorine → sodium chloride represent? A. combustion B. decomposition C. single replacement D. synthesis

Answers

Answer:

d. synthesis

Explanation:

it uses the formula a+b=ab.

Answer:

synthesis

Explanation:

A + B → AB

A simple example of a synthesis reaction is the formation of water from its elements, hydrogen, and oxygen:

2 H2(g) + O2(g) → 2 H2O(g)

What is the formula of titanium(IV) bromide?

Answers

Answer:

[tex]\boxed{\text{SnBr}_{4}}[/tex]

Explanation:

The name tells you that this is a binary compound (contains two elements).

It contains a metal and a nonmetal, so it is a binary ionic compound. The general rule is:

Name of compound = name of metal  name of ion (two words)

Name of metal = tin(IV), so the tin ion has a charge of 4+

Name of ion = bromide. Br is in Group 17, so bromide ion has charge of 1-.

[tex]\rm Sn$^{4+}$ + 4Br$^{-} \longrightarrow \,$ SnBr$_{4}$\\\\\text{The formula is} \boxed{\textbf{SnBr}_{4}}[/tex]

What statement correctly describes protons?

Answers

Answer:

A positively charged subatomic particle

What is the chemical formula for zinc phosphate?
ZnZP2
Zn(PO)
Zn3(PO.),
Zn(NO3)2

Answers

Zn₃(PO₄)₂ is the chemical formula for zinc phosphate.

What is a chemical formula?

The chemical formula of a compound means the symbolic representation of the composition of a compound.

Zn₃(PO₄)₂ is the chemical formula for zinc phosphate.

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Which of the following pressures is equal to 760 mm Hg? 2.0 atm 101.3 Pa 101,300 kPa 101,300 Pa

Answers

Answer:

101,300 kPa.

Explanation:

It is known that:

760 mm Hg = 101,300 kPa.

760 mm Hg = 1.0 atm.

So, the right choice is: 101,300 kPa.

3. How many kJ of heat are required to raise the temperature of 100.0 g of water from 25.0 c to 75.0 c? The specific heat of water is 4.184 J/g-c.

Answers

Answer:

20.9 kJ.

Explanation:

We can calculate the amount of heat (Q) released to water using the relation:

Q = m.c.ΔT,

where, Q is the amount of heat released to water (Q = ??? J).

m is the mass of water (m = 100.0 g).

c is the specific heat capacity of solution (c = 4.18 J/g.°C).

ΔT is the difference in T (ΔT = final temperature - initial temperature = 75.0°C - 25.0°C = 50.0°C).

∴ Q = m.c.ΔT = (100.0 g)(4.18 J/g.°C)(50.0°C) = 20900 J = 20.9 kJ.

Which of the following correctly describes the importance of the nitrogen cycle?

Answers

Are there any answer choices? If not, here are some possible responses you may see (that are correct, of course):

*It is used in the process of decomposition.

*It is used to release ammonia from dead animals that ultimately gets turned into nitrogen-based substances.

*It involves the formation of nitrates into nitrogen to complete the nitrogen cycle.

I hope I helped!

If you find the answer choices, just comment them down below and I will gladly tell you which one is correct. :)

What would be the original temperature of a gas that has a volume of 2.0 L and a pressure of 2.0 ATM and an unknown temperature that the volume increased to 3.5 L in its pressure decreased to 1.0 ATM if the final temperature is measured to be 11°C

Answers

Answer:

= 51.57 °C

Explanation:

The combined gas equation shows that P₁V₁/T₁=P₂V₂/T₂ where P represents pressure, V represents volume and T absolute temperature

From the information provided in the question,

Since we are finding the initial or original temperature, we can make T₁ the subject of the formula.

T₁=P₁V₁T₂/P₂V₂

P₁=2.0 ATM

P₂= 1.0 ATM

V₁=2.0 L

V₂= 3.5 L

T₁=?

T₂= (11+273) K=284 K

Using these values in the formula:

T₁= (2.0 ATM × 2.0 L× 284 K)/(1.0 ATM × 3.5 L)

=324.57 K

324.57-273= 51.57 °C

A compound contains C, H, and O atoms. When 1.130 g of the compound is burned in oxygen, 1.064 g CO2 and 0.3631 g H2O are produced. What is the empirical formula of this compound?

Answers

Answer:the empirical formula is C3H8O2

Explanation:

You need to determine the relative number of moles of hydrogen and carbon. So you first calculate the molar mass of CO2 and H20 Atomic weight of carbon = 12.0107 Atomic weight of hydrogen = 1.00794 Atomic weight of oxygen = 15.999 Molar mass CO2 = 12.0107 + 2 * 15.999 = 44.0087 Molar mass H2O = 2 * 1.00794 + 15.999 = 18.01488 Now calculate the number of moles of CO2 and H2O you have Moles CO2 = 2.086 g / 44.0087 g/mole = 0.0474 mole Moles H2O = 1.134 g / 18.01488 g/mole = 0.062948 mole Calculate the number of moles of carbon and hydrogen you have. Since there's 1 carbon atom per CO2 molecule, the number of moles of carbon is the same as the number of moles of CO2. But since there's 2 hydrogen atoms per molecule of H2O, The number of moles of hydrogen is double the number of moles of H2O Moles Carbon = 0.0474 Moles Hydrogen = 0.062948 * 2 = 0.125896 Now we need to determine how much oxygen is in the compound. Just take the mass of the compound and subtract the mass of carbon and hydrogen. What's left will be the mass of oxygen. Then divide that mass by the atomic weight of oxygen to get the number of moles of oxygen we have. 1.200 - 0.0474 * 12.0107 - 0.125896 * 1.00794 = 0.503797 Moles oxygen = 0.503797 / 15.999 = 0.031489 So now we have a ratio of carbon:hydrogen:oxygen of 0.0474 : 0.125896 : 0.031489 We need to find a ratio of small integers that's close to that ratio. Start by dividing everything by 0.031489 (selected because it's the smallest value) getting 1.505288 : 3.998095 : 1 The 1 for oxygen and the 3.998095 for hydrogen look close enough. But the 1.505288 for carbon doesn't work. But it looks like if we double all the numbers, we'll get something close to an integer for everything. So do so. 3.010575 : 7.996189 : 2 Now this looks good. Rounding everything to an integer gives us 3 : 8 : 2 So the empirical formula is C3H8O2

. 8750 J of heat are applied to a piece of aluminum, causing a 66.0 oC increase in its temperature. The specific heat of aluminum is 0.9025 J/g oC. What is the mass of the aluminum?

Answers

146.8983 grams


EXPLANATION:


You can use the heat formula to find the mass

q=mc ΔT


The q stands for heat, which is given; 8750 Joules

The m stands for mass, which is our UNKNOWN

The c stands for specific heat, which is given; 0.9025 J/gC

The ΔT stabs for temperature change, which is
given; 66 C


So plug in all of your information into the formula.


8750= (m) (0.9025) (66)

8750= (m) (59.565)

146.8983= mass


Let me know if you have any questions.



The mass of aluminum supplied to given quantity of heat in order to increase its temperature is 146.9 g.

The given parameters;

heat applied to the aluminum, Q = 8750 Jincrease in temperature of the aluminum Δt = 66 ⁰Cspecific heat of aluminum, c = 0.9025 J/g⁰C

The mass of aluminum is calculated as follows;

Q = mcΔt

where;

m is the mass of the aluminum

[tex]m = \frac{Q}{c \Delta t} \\\\m = \frac{8750}{0.9025 \times 66} \\\\m = 146.9 \ g[/tex]

Thus, the mass of aluminum supplied to given quantity of heat in order to increase its temperature is 146.9 g.

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what is co2 compound made of

Answers

Answer:

two oxygen atoms covalently bonded to a single carbon atom.

Explanation:

Please mark brainliest and have a great day!

Answer:

Carbon, and two Oxygen atoms

Explanation:

CO2, or Carbon Dioxide is made up of one Carbon (C) atom, and two Oxygen (O) atoms.

Hamad stated that Nitrogen gas is noncombustible so is water vapour. If Both nitrogen and water are in gaseous state then why the term gas and vapour were used by Hamad?

Answers

Answer:

Unlike clouds, fog, or mist which are simply suspended particles of liquid water in the air, water vapour itself cannot be seen because it is in gaseous form. Water vapour in the atmosphere is often below its boiling point. When water is boiled the water evaporates much faster and makes steam.

Both vapor and gas contains the gaseous molecules. But vapor state contains a second phase too along with gas whereas, gaseous state only contain one component.

What is vapor?

Vapor is a state of matter consists of two component. Solid and gas  or liquid and gas. Thus vapor is formed when a gas comes in contact with liquid or solid.

There forms an equilibrium between gaseous state and liquid or solid state. For example water forms water vapor when the liquid water boils to form gases, similarly other liquids such as acids forms their vapor.

Gases such as oxygen, hydrogen, nitrogen etc.  forms only gases and thus have only one component. Thus we used to say nitrogen gas, hydrogen gas etc.

Therefore, vapor is a combination of two states and gas in a single state. Water forms vapor and can be called water vapor but nitrogen is called gas only.

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Ice floats on water,but an iron nail sinks.

Answers

Answer:

True

Explanation:

Ice floats on water, for water is more dense than ice, allowing water to "support" the ice on top.

Iron nail, on the other hand, is more dense than water, allowing the nail to sink.

Answer: True an iron nail is more dense than the water and Ice the ice is less dense than the water making it float. Hopes this helps :)

What is the chemical formula for iron(II) hydroxide?
Fe, OH
Fe(OH)
FeOH
0 FeOH

Answers

None of the above, it is Fe(OH)2

Answer:  None of the given options .

Explanation:  The chemical formula of Iron (II) hydroxide can be written as

Fe (OH)2

As iron is present in its +2 state and hyrdoxide ion has charge of one negative unit .

Thus iron hydroxide can be written as the above and none of the given options is correct.

In carbon monoxide, there is always 1.33 g of oxygen for every
1g of carbon. How many grams of carbon are in a 16.03 g
sample of carbon monoxide? ______g carbon​

Answers

Call O the mass of oxygen and C the mass of carbon in the sample. Now use two equations, two unknowns to solve.

From the first sentence we know that:
O = 1.33C

From be second sentence we know that:
C + O = 16.03

Sub the first into the second:
C + 1.33C = 16.03
2.33C = 16.03
C = 6.88

The mass of carbon in the sample is 6.88g.

There are 6.88 g of carbon in 16.03 g sample of carbon monoxide.

Carbon monoxide has formula as CO.

C => carbon

O => oxygen

From the question given above, we were told that there is always 1.33 g of oxygen for every 1 g of carbon. Thus,

O = 1.33C ............. (1)

We were also told that the mass of CO is 16.03 g i.e

C + O = 16.03 ........... (2)

Summary:

O = 1.33C ............. (1)

C + O = 16.03 ........... (2)

From the equation above, we can obtained the mass of Carbon (C) as follow:

C + O = 16.03

O = 1.33C

C + 1.33C = 16.03

2.33C = 16.03

Divide both side by 2.33

C = 16.03 / 2.33

C = 6.88 g

Therefore, 16.03 g of the sample of carbon monoxide contains 6.88 g of carbon.

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How many joules of heat are absorbed to raise the temperature of 435 grams of water at 1 atm from 25°C to its boiling point, 100.°C?

Answers

136568.25 J


Let me know if you have any questions
Final answer:

To calculate the heat absorbed by the water, we use the formula Q = mcΔT, where Q represents the heat energy absorbed, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature. Substituting the given values, we find that approximately 136,872 joules of heat are absorbed to raise the water's temperature from 25°C to 100°C.

Explanation:

This question is asking how much heat energy, in joules, is required to heat 435 grams of water from 25°C to 100°C at atmospheric pressure. The formula used to calculate this is Q = mcΔT, where Q represents the heat energy absorbed, m is the mass of the substance (water), c is the specific heat capacity, and ΔT is the change in temperature.

For water, the specific heat capacity (c) is 4.184 J/g°C. The mass (m) of the water is given as 435 g. The change in temperature (ΔT) is the final temperature minus the initial temperature, which is 100°C - 25°C = 75°C.

Substituting these values into the equation gives us, Q = (435 g) × (4.184 J/g°C) × (75°C), which equals approximately 136,872 joules. This is amount of heat absorbed by the water to raise its temperature from 25°C to 100°C at 1 atm.

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HELP PLEASE NEED URGENT HELP!!!!!!!

Answers

C) It goes up by one

Which of the following is NOT a characteristic of liquids?
A. no significant attraction between particles
B. less fluid than gases
C. more dense than gases
D. exhibits viscosity

Answers

Answer:

a.

Explanation:

20 grams of water. She poured out 15 grams. Which of the following physical properties of the water changes?

A .Boiling point
B. Density
C .Electrical conductivity
D .Volume

Answers

Answer:

Volume  only intrinsic

Explanation:

Which statement best describes the function of enzymes?

Answers

Enzymes are biological molecules (typically proteins) that significantly speed up the rate of virtually all of the chemical reactions that take place within cells. They are vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism.

Enzymes lower the activation energy level of a chemical reaction, thus making it so the reaction will proceed.

What are enzymes?

Enzymes are proteins that help speed up chemical reactions in our bodies.

Enzymes are proteins that speed up the rate of a chemical reaction without being used up during the reaction.

They are biological catalysts. Catalysts, as we know lower the activation energy for reactions and speed them up.

The lower the activation energy for a reaction, the faster the rate.

Thus enzymes speed up reactions by lowering the activation energy.

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An object was measured by a worker as
17.4cm long, however, the manufacturer
specifications list the length of the object at
17.9cm. What is the percent error in the
workers measurement?

Answers

Answer:

[tex]\boxed{2.8 \, \%}[/tex]

Explanation:

[tex]\text{Percent error} = \dfrac{\lvert \text{Measured - Actual}\lvert}{ \text{Actual}} \times100 \, \%[/tex]

Data:

Predicted = 17.4 cm

     Actual = 17.9 cm

Calculation:

[tex]\text{Percent error} = \dfrac{\lvert 17.4 - 17.9\lvert}{17.9} \times 100 \, \% \\\\= \dfrac{\lvert-0.5\lvert}{17.9} \times 100 \, \% = \dfrac{0.5}{17.9} \times 100 \, \% \\\\= 0.028 \times 100 \, \% = \textbf{2.8 \%}\\\\\text{The percent error in the measurement is } \boxed{\textbf{2.8 \%}}[/tex]

Why is the melting of ice a physical change ?

Answers

Answer:

Because No New Substance if Formed!

Explanation:

When ice melts, it is still considered to be water, it's just no longer a solid. The molecules of water do not become something else and simply just change phases. A chemical reaction requires that a new substance be formed, for example when you burn paper, a new substance is formed. Also melting ice is reversible, you can just freeze it again, while chemical reactions cannot be reversed!

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For beet sugar showed that in order to create that perfect sweetness you did not need slaves, you did not need plantations, in fact you did not even need cane. Beet sugar was a foreshadowing of what we have today: the Age of Science, in which sweetness is a product of chemistry, not whips. In 1854 only 11 percent of world sugar production came from beets. By 1899 the percentage had risen to about 65 percent. And beet sugar was just the first challenge to cane. By 1879 chemists discovered saccharinea laboratory-created substance that is several hundred times sweeter than natural sugar. Today the sweeteners used in the foods you eat may come from corn (high-fructose corn syrup), from fruit (fructose), or directly from the lab (for example, aspartame, invented in 1965, or sucraloseSplendacreated in 1976). Brazil is the land that imported more Africans than any other to work on sugar plantations, and in Brazil the soil is still perfect for sugar. 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