The given for the problem:
100 cm^3 butane
Get first the molecular formula of butane and it is C4H10
To solution for the problem is:
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
n = V/22.4
n (C4H10) = 0.1/22.4 = 0.0047 mol
n (CO2) = 4 · n (C4H10) = 4 · 0.0047 = 0.018 mol
Burning 100 cm³ of butane in excess oxygen at STP produces 0.4 liters of carbon dioxide, as calculated through the stoichiometry of the balanced combustion reaction of butane.
When butane (C₄H₁₀) is burned in excess oxygen, the combustion reaction can be represented by the balanced equation:
2 C₄H₁₀(g) + 13 O₂(g) → 8 CO₂(g) + 10 H₂O(g)
The balanced equation shows that 2 moles of butane produce 8 moles of carbon dioxide (CO₂). At standard temperature and pressure (STP), 1 mole of any gas occupies 22.4 L. Therefore, for every 2 moles (2 × 22.4 L) of butane, 8 moles (8 × 22.4 L) of CO₂ are produced. If we burn 100 cm³ (which is equivalent to 0.1 L) of butane, we need to determine how many moles this quantity represents and then calculate the corresponding volume of CO₂ produced.
First, we calculate the moles of butane:
0.1 L butane × (1 mole butane / 22.4 L) = 0.00446 moles butane
Using the stoichiometry of the reaction, the moles of CO₂ produced are 4 times the moles of butane:
0.00446 moles butane × (4 moles CO₂ / 1 mole butane) = 0.01784 moles CO₂
Now, we convert the moles of CO₂ to volume at STP:
0.01784 moles CO₂ × (22.4 L / 1 mole CO₂) = 0.4 L CO₂
Therefore, 100 cm³ of butane will produce 0.4 liters of carbon dioxide at STP when burned in excess oxygen.
what is the theoretical yield of hydrogen gas if 5.00 mol of zinc are added to an excess of hydrochloric acid?
Answer:
Theoretical yield of H2 = 10.0 g
Explanation:
Given:
Moles of Zn added = 5.00
To determine:
The theoretical yield of H2 gas
Calculation:
The balanced reaction between Zn and HCl is as shown below:
[tex]Zn + 2HCl \rightarrow ZnCl2 + H2[/tex]
Based on the reaction stoichiometry:
Since HCl is in excess, the limiting reagent is Zn. Thus,
1 mole of Zn will produce 1 mole of H2
Accordingly, 5 moles of Zn will produce 5 moles of H2
Molar mass of H2 = 2 g/mol
Mass of H2 produced = [tex]Moles * Molar\ mass = 5.00 mol*2 g/mol = 10.0 g[/tex]
If 50.75 g of a gas occupies 10.0 l at stp, 129.3 g of the gas will occupy __________ l at stp.
Answer: 25.5 L
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 Liters at STP and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.
We are given:
50.75 g of a gas occupies = 10.0 L at STP
Thus 129.3 g of a gas occupies =[tex]\frac{10}{50.75}\times 129.3=25.5L[/tex] at STP
Thus 129.3 g of gas will occupy 25.5 L at STP.
Why is it important to know the properties of baking ingredients?
As the block slides down the ramp, what type of energy conversion is occurring?
What is the mass of 1.50 mol of sodium, na?
To get the answer, you must know first the formula:
We know that moles = mass divided by molecular weight
So to get the mass, we need to alter the original formula, so
mass of sodium = 1.5 moles x atomic weight of Na
so what is the atomic weight of Sodium? It is 22.989769 u.
so the mass of sodium = 1.5 moles x 22.989769 u = 34.4846535
what is the resulting formula unit when magnesium and nitrogen bond
Magnesium (Mg) belongs to group II A in the periodic table with atomic number = 12
Mg Electron configuration = 1s²2S²2p⁶3s²
Nitrogen (N) belongs to group V A in the periodic table with atomic number = 7
N electron configuration= 1s²2s²2p³
Valence electrons for Mg = 2
Valence electrons for N = 5
Mg loses 2 electrons and N gains 3 electrons to complete its octet
Thus, the Formula unit when Mg and N bond is Mg₃N₂
Is it possible to have carbon atoms with different numbers of protons?
Choose three scientists that were involved in developing atomic theory
PLEASE HELP!!!!!!! :C :C :C
The mixture you separated was a mixture of iron filings, sand, and salt. Based on your understanding of matter, is this mixture a homogenous mixture or heterogenous mixture? How do you know?
A.)homogenous mixture-the parts are uniformly mixed
B.)homogenous mixture-the parts are not uniformly mixed
C.)heterogenous mixture-the parts are uniformly mixed
D.)heterogenous mixture-the parts are not uniformly mixed
Hey Friend, I think the answer is C give me Brainlist If correct thanks
What can be removed from an atom if ionization energy is supplied?
an electron
a proton
an ion
a neutron
Study this equation carefully. What classification should this reaction have?
Cu + 2AgNO 3 Cu(NO 3 ) 2 + 2Ag
synthesis
decomposition
single replacement
double displacement
neutralization
At which stage(s) in meiosis is DNA condensed into chromosomes? prophase I only, prophase I and II, metaphase I and II, metaphase II only
What will the ratio of ions be in any compound formed from a group 1a and a group 7a nonmetals?
According to the electronic configuration and valency, ratio of ions in compound formed of group 1 and group 17 is 1:1 as they both have charges +1 and-1 respectively.
What is electronic configuration?Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.
Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.
Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.
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A population expert makes a graph to show the future rates of population growth in various countries. Which is necessary a source of error for him?
Final answer:
The unpredictability of various factors impacting population changes poses challenges in accurate projections made by population experts.
Explanation:
One necessary source of error for a population expert making future population growth graphs is the unpredictability of factors affecting population changes. These factors include birth rates, death rates, migration, and resource limits impacting population growth. Additionally, mitigation measures undertaken by countries or unforeseen events altering societal dynamics can lead to inaccuracies in long-range population projections essential for planning purposes. Population forecasts attempt to estimate growth rates, but unpredictable changes in fertility, mortality, and migration rates can pose challenges in accurate projections.
What element on the periodic table has a mass number of 50.9?
Sodium and chlorine react to form sodium chloride: 2na(s)+cl2(g)→2nacl(s)part awhat is the theoretical yield of sodium chloride for the reaction of 55.0 g na with 67.2 g cl2?
Answer:
The answer is 108 if you are coming from Mastering Chem
Explanation:
List 5 special properties that may help identify certain minerals
The greater the resistance, the less current there is for a given voltage. True or False
What happen once intercellular signals reach the inside of the cell using some type of receptor
A. The signal stops
B. The signal produces a protein
C. The signal is transferred to the cytoplasm
D. Intercellular communication takes over
Correct option is B.
B. The signal produces a protein
Explanation:There are many kinds of signals that reach the inside of cell. Every signal carry some important message regarding the functioning of cell or any other part of body. Normally signals that penetrate in the cell translate a protein to carry out their function. So, signals actually stimulate the machinery of the cell and make it to produce the protein of its own desire.
Once intercellular signals reaches inside of the cell by the receptor then it helps in the intercellular communication among each other.
Further Explanation:
The receptors are usually the proteinaceous structure that resides over the surface of the cell as well as present inside it. It receives signals in various forms. These signals may only interact with the receptor on the outer surface of the cell or it may reach inside the cell and interact with the receptor molecule. The interaction may result in the manipulation in the transcription process as some of the genes will be stimulated to transcribe into the protein or some may get inhibited.
There can by different types of signal molecule. They are:
1. Autocrine: These signals are produced by the cell type to which the signaling molecule get attached. Therefore they acts over self-cell. This kind of signaling happens in the early development of an organism.
2. Paracrine: These signals produced by the signaling cell acts locally on the cell that lies closer to them.They generally produces faster response.
3. Endocrine: These signals travels to the longer distance and acts over the cells residing over there. They generally produces slower response.
Learn more:
1. Learn more about receptor https://brainly.com/question/7178431
2. Learn more about cell https://brainly.com/question/5923583
3. Learn more about cell cycle https://brainly.com/question/1600165
Answer Details:
Grade: College Biology
Subject: Biology
Chapter: Signal transduction
Keywords:
Intercellular signals, receptor, intercellular communication, transcription, autocrine, cell, organism, paracrine, endocrine.
Which is not true about the liquid state of matter?
A. The liquid state has a definite volume and a definite shape.
B. The liquid state takes on the shape of its container.
C. The liquid state has a definite volume and an indefinite shape.
D. The particles in a liquid can easily move past each other.
Answer: Option (A) is the correct answer.
Explanation:
In liquids, the molecules are held by less strong intermolecular forces of attraction as compared to solids. Due to which they are able to slide past each other. As a result, they have some amount of kinetic energy which is greater than that present within molecules of a solid.
Due to this a liquid is able to occupy the shape of container in which it is placed. Hence, a liquid substance will always have a definite volume but not fixed shape.
Thus, we can conclude that the statement liquid state has a definite volume and a definite shape, is not true about the liquid state of matter.
The incorrect statement about the liquid state of matter is that it has a definite volume and a definite shape. In reality, liquids have a definite volume but take on the shape of their container, therefore they do not have a definite shape.
Explanation:The statement which is not true about the liquid state of matter is:
A. The liquid state has a definite volume and a definite shape.
This statement is incorrect because liquids do not have a definite shape; they take the shape of their container. In the liquid state, the particles have enough energy to partially overcome intermolecular interactions allowing them to move about while remaining in close contact, which gives the liquid a definite volume but an indefinite shape. Liquids are known for their characteristics of adapting to the shape of their container while retaining a fixed volume, similar to mercury, which is unique for being a metal that is liquid at room temperature and exhibiting high surface tension.
Which of these expressions are correct variations of the combined gas law?
Answer:
Both p2=p1(t2/t1)(v1/v2) and p1v1t2=p2v2t1
Explanation:
Without doing any calculations, list the elements in c2h4o2 in order of decreasing mass percent composition.
Write a net ionic equation to show that quinoline, c9h7n, behaves as a bronsted-lowry base in water.
Why do your feet feel cooler on a tile floor than on a warm rug?
The tile is a poor conductor.
The rug is a good conductor.
The tile is a better insulator than the rug.
The rug is a better insulator than the tile.
Answer:
Option d
Explanation:
The question is to find the reason why our feet feel cooler on a tile floor than on a warm rug.
The reason is
i) the tile is a better heat conductor and it moves our body heat faster away from our skin.
ii) The rug is a good insulator and hence it slows down the flow of heat from our skin of touch and hence we feel warmer
So out of the four options
option d is right.
The rug is a better insulator than the tile.
An atom’s chemical behavior is determined mostly by its _______. A. number of protons B. number of neutrons C. number of electrons D. number of valence electrons E. None of the Above
The chemical behaviour of an atom is primarily determined by the number of its valence electrons, which are the ones that participate in chemical reactions.
Explanation:An atom’s chemical behaviour is determined mostly by its number of valence electrons. Option D is correct. The valence electrons, which are the electrons in the outermost shell of an atom, are the ones primarily involved in chemical reactions.
These electrons can be shared, lost, or gained in a chemical reaction, thereby determining the atom’s chemical behaviour. For example, Hydrogen has one valence electron, and it forms bonds with other atoms by sharing or losing that electron.
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Macon is 50 miles from Atlanta. If the time of the trip increases, what happens to the speed? Question 8 options: A:It stays the same because the distance stays the same B: It decreases C: It averages out to the same speed. D: It increase
Given information:
Distance (d) = 50 miles
To determine:
The effect on speed as time increases
Explanation:
Speed can be defined as the ratio of the distance (d) traveled to the time (t) taken to cover that distance
Speed = distance/time -----(1)
In the given example since the distance is fixed an increase in the time of the trip will increase the denominator in equation(1) thereby decreasing the speed.
Ans (B) It decreases
How much water must be evaporated from 240 gallons of a 3 salt solution?
What is the name of PbO?
lead oxide
lead (I) oxide
lead (II) oxide
lead (IV) oxide
Answer:
The answer is lead (II) oxide.
Hope this helps you
How much of a 100.0 g sample of 198au is left after 8.10 days ifi its half life is 2.70 days?
Answer:
The answer is 12
Explanation:
Is dimethyl amine and triethylamine more soluble in water?
Final answer:
Dimethylamine is more water soluble than triethylamine due to its smaller size and ability to form hydrogen bonds more easily, making it dissolve better in water.
Explanation:
The question asks which compound, dimethylamine or triethylamine, is more soluble in water. Water solubility in amines is influenced by the length of the carbon chain and the molecule's ability to form hydrogen bonds. Smaller amines with fewer carbon atoms, such as dimethylamine, are typically more soluble in water compared to larger amines with more carbon atoms, like triethylamine. Molecules like dimethylamine that can form hydrogen bonds easily dissolve in water, whereas triethylamine, which is bulkier and less able to engage in hydrogen bonding, is less soluble. Therefore, dimethylamine would have a higher solubility in water than triethylamine. The basicity of amines also affects their water solubility as they can dissolve in dilute mineral acid solutions, which is useful for the separation of amines from non-polar solvents.