BH3 has trigonal planer geometry with zero net dipole moment, hence it is non-polar.
Each B-H bond in BH3 is polar / forms a dipole because the B and H atoms have different electronegativities.
On the other hand, CH2O is having a similar structure but possesses dipole moment because of the presence of polar C=O group, thus the entire molecule is polar.
That is why despite the fact that both BH3 and CH2O have similar structure, but one is polar whereas other is non-polar.
The hydrogen side of the molecule will end up slightly positive. So that is why these two. That is why the first one is non polar because of the symmetry. And the second one is polar because it is a symmetrical it does not have that symmetry that we see in the first molecule.
To learn more about Dipole Moment visit:
https://brainly.com/question/14140953
#SPJ4
a form of energy caused by the movement of molecules from warmer substances or objects to cooler ones.
Heat is the energy that is transferred from a warmer to a cooler object.
Is there a type of thermal energy that moves from one thing to another and that movement is caused by the temperature differential between the two objects?Thermal energy that is in motion from one location to another is called heat. Warmer items transfer their heat to cooler ones. Heat is measured in Joules or occasionally in calories because it is a type of energy.
What kind of energy causes the atoms and molecules in substances to vibrate and move?The vibration and movement of the atoms and molecules within a substance provide thermal energy, often known as heat. Atoms move more quickly when a substance has higher thermal energy.
To know more about Thermal energy visit:-
https://brainly.com/question/14506133
#SPJ4
The Lewis diagram for NOBr is: Br The electron-T pair geometry around the N atom in NOBr is There is/are lone pair(s) around the central atom_ So the geometry of NOBr is The Lewis diagram for NOzF is: 6-N=& The electron-pair geometry around the atom in NOzF is There is/are lone pair(s) around the central atom, so the geometry of 'NOzF is Submit Answer Retry Entire Group more group attempt remaining
The molecular geometry of NOBr is bent, and the electron geometry is trigonal planar.
In other words, two atoms are joined together. On the nitrogen, there is only one isolated pair.
What does the term NOBr mean?The chemical compound with the chemical formula NOBr is nitrosyl bromide. It is a red gas that condenses at a temperature that is just below ambient.
N's number of bonds in NOBr is how many.The connection between N and O in nitrosyl bromide contains one sp2 hybrid orbital and one p atomic orbital. Between N-Br and N-O, N in NOBr contains a total of two single bonds.
To know more about NOBr visit:-
https://brainly.com/question/14469519
#SPJ4
Why is stoichiometry important?
Stoichiometry is a key concept in chemistry that allows us to calculate reactant and product amounts using balanced chemical equations. We employ the ratios from the balanced equation in this situation.
It aids in predicting the amount of a reactant that will be involved in a chemical reaction, the amount of product you'll get, and the amount of reactant that may be left over. The manufacture of many items you use on a daily basis is based on stoichiometry. Some of the products you use that are chemically manufactured or created through chemical reactions include soap, tires, fertilizer, fuel, deodorant, and chocolate bars. We may utilise stoichiometry to forecast and plan the results of numerous chemical processes, from planning for s'mores to simplifying manufacturing and generating environmental data.
To learn more about stoichiometry click here https://brainly.com/question/9743981
#SPJ4
When you see Red Cat and An Ox what does that tell you? a. Dr. Song uses the red cat and an ox to refer to her two kids: b. It is short for "Reduction occurs at the Cathode and Oxidation occurs at the Anode' c.Dr. Song has red cat and an ox in her nouse; d.Red cat?? There no such thing: Dr. Song made it Up. She is too bored during quarantine_
At the anode, oxidation takes place whereas at the cathode, reduction takes place.
A non-spontaneous redox reaction is sparked by the application of electrical energy in electrolytic cells, a kind of electrochemical cell. Here, chemical energy is created by converting electrical energy. These are made up of two half cells: a positively charged cathode for reduction and a negatively charged anode for oxidation. The same container that contains the molten electrolyte also houses the two electrodes.
For instance, an electrolytic cell is used to break down salt (NaCl). The general response is:
At cathode: Diminishment
Rightleftharpoons Na + + e-
Oxidation at the anode
Rightleftharpoons, 2Cl-+, and 2e-
To learn more about oxidation please click on below link
https://brainly.com/question/376562
#SPJ4
Rank the crystal lattice structures in order of decreasing efficiency of space in the structure. Rank from most to least efficient use of space. To rank Items as equivalent, overlap them. View Available Hint(s) Reset Help body-centered cubic hexagonal close packing face-centered cubic simple cubic Most efficient use of space Least officient use of space The correct ranking cannot be determined
Crystal lattice structures in order of decreasing efficiency of space in the structure are hexagonal close packing, face-centered cubic, body-centered cubic, and simple cubic.
The crystal lattice refers to the symmetrical three-dimensional structural arrangements of atoms, ions, or molecules within a crystalline solid as points. It is the geometrical arrangement of the atoms, ions, or molecules of the crystalline solid as points in space. In crystallography, the packing efficiency of crystals is calculated by atomic packing factor which is the fraction of volume or space occupied by atom in a unit cell and is given by:
APF = Volume of atoms in unit cell/Volume of unit cell
The known values of the atomic packing factor are:
The atomic packing factor for simple cubic (SC) is 52%.The atomic packing factor for body-centered cubic (BCC) is 68%.The atomic packing factor for face-centered cubic (FCC) is 74%.The atomic packing factor for hexagonal close packing (HCP) is74%.Hence,
The fraction of free space or volume = 100% - Atomic packing factor
For simple cubic (SC) = 100% - 52% = 48%.For body-centered cubic (BCC) = 100% - 68% = 32%.For face-centered cubic (FCC) = 100% - 74% = 26%.For hexagonal close packing (HCP) = 100% - 74% = 26%.Hence in the decreasing order of efficiency of space is HCP, FCC, BCC, and SC.
Learn more about Crystal lattice:
https://brainly.com/question/28301556
#SPJ4
predict the major product for the reaction. the starting material is a five carbon ring with a double bond between carbons 1 and 2. there is a methyl substituent on carbon 1. this reacts with h b r and peroxide. draw the major product.
The major product for the reaction. the starting material is a five carbon ring with a double bond between carbons 1 and 2. there is a methyl substituent on carbon 1.reacts with HBr and peroxide form 1-bromo2-methy cyclopentane.
The a five carbon ring with a double bond between carbons 1 and 2 , the methyl is substituted on carbon one the compound in 1-methyl cyclopentane. the reaction with HBr proceeds with the free radical mechanism because peroxide form hydroxide radical.
H₂O₂ -----> OH° + OH°
OH° + H - Br ----> Br° + H₂O
the product form in the reaction is the 1 - bromo-2- methyl cyclopentane.
To learn more about carbon here
https://brainly.com/question/29758115
#SPJ4
Why is FeCl3 a Lewis acid?
FeCl3 is a Lewis acid because it has an empty d orbital that can accept electrons from a Lewis base. The empty d orbital allows FeCl3 to form a coordinate covalent bond with a Lewis base, forming a Lewis acid-base complex. This empty d orbital is not filled by the three chloride ions, making it an excellent Lewis acid.
In the Lewis theory of acid-base reactions, bases donate electron pairs and acids gain electron pairs. Therefore, a Lewis acid is any substance that: B. H+ ions that can accept unbonded electron pairs. In other words, Lewis acids are electron pair acceptors. A Lewis base is a substance that: OH ions that can donate unbonded electron pairs. Therefore, Lewis bases are electron pair donors.
An advantage of Lewis theory is how it complements models of redox reactions. Redox reactions involve the transfer of electrons from one atom to another with a net change in the oxidation number of one or more atoms.
Learn more about Lewis Acid:
https://brainly.com/question/15570523
#SPJ4
9) A Full Verbatim file contains: a) Speech errors b) Stutters c) False starts 10) The correct form(s) of affirmation for Full Verbatim is (are): a) Mm-hmm Mm; Uh-huh b) Mh-mm; Uh-um; ah-am; uh-Uh c) Mm-hmm; uh-uh; uh-huh
The correct form(s) of affirmation for Full Verbatim is (are): Mm-hmm; Uh-uh; Uh-huh. Full Verbatim is a form of transcription that records exactly what is said in a conversation or meeting.
It captures all aspects of the conversation including speech errors, stutters, false starts and any other utterance. These affirmations are used to indicate that the speaker is aware of the other person’s comments and to show agreement. These affirmations are important for transcribing conversations as they provide context to the conversation and help to fill in gaps in the conversation.
It is important to note that Full Verbatim is not a perfect form of transcription. There are some cases where the conversation may not be completely captured. For example, if the participants are speaking over each other, it may be difficult to capture all the details of the conversation. In addition, there are certain nuances and non-verbal cues that are not recorded in Full Verbatim and may be missed.
Although Full Verbatim is not perfect, it is still a valuable form of transcription as it captures what is said in the conversation in great detail. It allows for accurate recordings of the conversation and can be used to refer back to at a later date. This form of transcription should be used with caution, however, as any mistakes or omissions may lead to inaccurate records.
Learn more about Full Verbatim at :https://brainly.com/question/20375995
#SPJ4
a decrease of ph by 3 implies
Therefore, the pH of water would change from 7 to 8 if the amount of hydroxide ions in it were to rise by a factor of 10.
An acid solution's pH will often decrease as it becomes more concentrated. For bases, more highly concentrated solutions will result in higher pH values. b) The task requires calculating the change in [H 3 _3 3 O + + +] when pH is reduced (by 3 units). Write a 3 on the left side of the equation if the pH value is lowered. As a result, as can be seen from the computation, the [H 3 _3 3 O + + +] value will be raised by 10 3 3 3.
The pH drops as a solution becomes more acidic (as [H+] rises).
To learn more about hydroxide ions please click on below link
https://brainly.com/question/25883474
#SPJ4
a student was synthesizing aspirin in the laboratory. using the amount of limiting reactant, she calculated the mass of aspirin that should form as 10.34 g. when she weighed her aspirin product on the balance, its mass was 3.10 g. calculate the percent yield for this synthesis. %
Filtration can be used to separate the water-soluble acetic acid from the aspirin. The limiting reagent will be salicyclic acid.
How can we determine the limiting reagent?
By dividing the volume of each solution by its molarity, you can determine how many moles of each reactant there are. By subtracting the number of moles of each reactant from its stoichiometric coefficient in the balanced chemical equation, you may determine which reactant is the limiting one.
How many grams of aspirin were created during the process of making it?
This resulted in an estimated value of 3.029 grams for crude synthesized aspirin. The final aspirin product's calculated mass after purification was 2.169 grams. A theoretical yield of 2.520 grams was computed.
To know more about synthesizing aspirin visit;
https://brainly.com/question/29577431
#SPJ4
a breath of air has a volume of 1.05 l at a pressure of 740. torr and body temperature, 37oc. calculate the number of molecules in the breath
The number of molecules in the breath: 2.71 × 10²² molecules
What is ideal gas equation?PV = nRT denotes the ideal gas equation. In this equation. P stands for the ideal gas's pressure, V for its volume, n for the total amount of ideal gas expressed in moles, R for the universal gas constant, and T for temperature in this equation.
Given that:
Pressure (P) = 740.0 torr
= (740.0/760) atm
= 0.9737 atm
Volume (V) = 1.05 L
Temperature (T) = 3.7°C
= (3.7+273) K
= 276.7 K
find the number of moles using:
P×V = n×R×T
0.9737 atm × 1.05 L = n × 0.08206 atm.L/mol.K × 276.7 K
or, n = 4.5 × 10⁻² mol
Thus, the number of molecules = number of mol × Avogadro’s number
= 4.5 × 10⁻² mol × (6.023 × 10²³) molecules/mol
= 2.71 × 10²² molecules
Answer: 2.71 × 10²² molecules.
To know more about molecules refer to:
https://brainly.com/question/26044300
#SPJ1
br2 is a liquid with a density of 3.03 g/ml. determine the pressure in atm exerted by a column containing br2 at a height of 1000 mm. the density of mercury is 13.6 g/ml.
The mercury's density is 13.6 g/ml, hence the pressure exerted by a column of br2 at a height of 1000 mm is 0.2933 atm.
Density of liquid Br2 = 3.03 g/ml
Height of column = 1000mm =1m
Pressure exerted in N/[tex]m^{2}[/tex] = ρgh
pressure in atm = 2.972 × [tex]10^{4}[/tex]/101325 = 0.2933 atm
Temperature and pressure affect a substance's density. For solids and liquids, this difference is often negligible, but for gases, it can be very significant. A decrease in volume and subsequent increase in density result from applying more pressure to an object. (With a few exceptions) Increasing a substance's temperature causes its volume to increase, which reduces its density. As a result of the heated fluid's reduced density, which causes it to rise in relation to the denser unheated material, heating a fluid's bottom typically generates convection, or the transfer of heat from the bottom to the top.
The word "specific volume," which is sometimes used in thermodynamics, refers to a substance's reciprocal of density. The intensive quality of density.
Learn more about Density here:
https://brainly.com/question/10956343
#SPJ4
Where is blood under greatest pressure? A) arteries B) capillaries C) veins D) lymph vessels
The greatest blood pressure is found in
A) Arteries
Arteries are the blood vessels that take oxygenated blood from the heart to other parts of the body. Though these are the primary blood vessels that carry blood and have a considerable diameter they have the highest blood pressure due to the force with which the blood is pumped by the heart
Capillaries have a diameter of 8-10μm such that only RBC's and small proteins are able to pass through them while the white blood cells (WBC's ) move around as extracellular fluid.
Veins are primary blood vessel that carry the deoxygenated blood from various parts of the body to the heart. The blood pressure present in veins is comparatively lower in comparison to that of arteries as they transport blood against the force of gravity.
Lymph vessels are primary vessels that allow for the transport of Lymphatic fluid. Though being similar to arteries they do not have high pressure due to the lack of the force exerted by the heart.
Learn more about Blood vessels and Circulatory System at:
brainly.com/question/29773718
#SPJ4
suppose that daniel has a 2.50 l bottle that contains a mixture of o2 , n2 , and co2 under a total pressure of 4.80 atm. he knows that the mixture contains 0.230 mol n2 and that the partial pressure of co2 is 0.250 atm. if the temperature is 273 k, what is the partial pressure of o2 ?
If the mixture contains 0.230 mole N₂ and that the partial pressure of CO₂
is 0.250 atm and if the temperature is 273 k, the partial pressure of O₂ should 2.67 atm.
First we have to find the number of mole of CO₂ :
P = 0.25atm
V = 2.5L
T = 273K
So, find number of moles using:
PV = nRT
0.25 atm × 2.5 L = n × 0.08206 atm.L/ K × 273 K
n = 0.0279 mole
Now, the total mole of gas :
P = 4.8 atm
V = 2.5L
T = 273K
find number of moles using :
PV = nRT
4.8 atm × 2.5 L = n × 0.08206 atm.L/ K × 273 K
n = 0.5357 mole
Now, find mole of O₂ :
mole of O₂ = total mole - mole of CO₂ - mole of N₂
mole of O₂ = 0.5357 - 0.0279 - 0.21
Mole of O₂ = 0.2978 mole
finally, find pressure of O₂ :
V = 2.5 L
n = 0.2978 mole
T = 273K
PV = nRT
P × 2.5 L = 0.2978 × 0.08206 atm.L/ K × 273 K
P = 2.67 atm
So, the partial pressure of O₂ is 2.67 atm.
To learn more about Partial pressure, Here :
https://brainly.com/question/13868066?referrer=searchResults
#SPJ4
if the bond angle between two adjacent hybrid orbitals is 180°, which is the hybridization?
If The Bond Angle Between Two Adjacent Hybrid Orbitals Is 180 Hybridization is Sp2.
What is an orbital, exactly?A space object appears to follow an orbit as it moves around another space object. A satellite is a spacecraft that orbits the planet. A natural satellites that matches the Earth nor moon is one possibility. Moons are satellites in the orbits of numerous nations. A man-made satellite, such as the Space Stations, provides an additional choice.
How are orbitals created?The positions of the electrons are dictated by the entire molecule when several atoms unite chemically to form a molecule, combining the atomic orbitals into molecular orbitals. The molecular orbitals are occupied by the electrons of the component atoms. There are two electrons in each orbital, and their spins vary. An atom's orbital is the area of space where an electron resides.
To know more about Orbitals visit:
brainly.com/question/18914648
#SPJ4
Complete the following for the compound cobalt(III) chromate formula Co2(CrO4} atom numberin formula cobalt chromium oxygen
In the compound cobalt(III) chromate, the number of cobalt atoms are 2,the number of chromium atoms are 3 and the number of oxygen atoms are 12.
A molecular formula is a manner of offering records approximately the chemical proportions of atoms that represent a specific chemical compound or molecule, the usage of chemical detail symbols, numbers, and from time to time additionally different symbols, which include parentheses, dashes, brackets, commas and plus and minus signs.. The molecular formula of Cobalt(III) chromate is Co_2(CrO_4)_3. Thus, the number of cobalt atoms are 2,the number of chromium atoms are 3 and the number of oxygen atoms are 12.
To learn more about molecular formula check the link below:
https://brainly.com/question/20442936
#SPJ4
which color in the rainbow has the longest wavelength? 1. orange 2. blue3. yellow4.green 5. red
In rainbow, the color that has the longest wavelength is red which means option 5 is the correct choice.
Dispersion is described to be the spreading of white mild into its complete spectrum of colors, in truth we also can say a complete spectrum of wavelengths. The white mild turns into from solar and includes seven colors. On one end of the spectrum is red with the longest wavelength. Blue or violet mild has the shortest wavelength. White mild is a aggregate of all hues withinside the color spectrum. The colors of the rainbow are: Red, orange, yellow, green, blue, indigo, violet.
Therefore, option 5 is the correct choice.
To learn more about rainbow check the link below:
https://brainly.com/question/12008276
#SPJ4
Name one substance in the diagram that would
have a net movement out of the cell. (The beaker has 5% ionide, 85% water, 10% protein, The cell has 90% water, 5% starch, and 5% glucose)
The substance in the diagram that would have a net movement out of the cell is Water.
What substance would move from the cell?The substance that will have to have a net movement out of the cell would need to first be in the cell. The only substances in the cell are water, starch, and glucose.
Water will be the most likely substance to have a net movement out of the cell thanks to the process of osmosis which allows water molecules to move from an area of high concentration to an area of low concentration across a semi - permeable membrane. This happens until the concentration gradient is the same across the semi - permeable membrane.
The water in the cell is 90 % which means it is 5 % more than the 85 % water in the beaker. Water would therefore move out of the cell in a net movement until the concentration is the same in the beaker and the cell.
Find out more on movement out of cells at https://brainly.com/question/6843437
#SPJ1
a 275.0 ml sample of o2 is collected over water at 60.0oc. the total pressure is 755. torr. what is the volume of the o2 at stp? (the vapor pressure of water at 60.0oc is 149. torr).\
a 275.0 ml sample of o2 is collected over water at 60.0oc. the total pressure is 755 torr is
Ptot = PH20+ P02
P02 = 766-149 torr= 606 torr
V2 = 180ml
What is torr?
A torr is a unit of pressure based on an absolute scale, defined as exactly 1/760 of standard atmospheric pressure. Therefore, 1 Torr corresponds exactly to 101325/760 Pascals. Historically, torr was thought to be the same as "millimeter of mercury", but later he was redefined by the two units to be slightly different.
Therefore, Ptot = PH20+ P02
P02 = 766-149 torr= 606 torr
V2 = 180ml,
A torr is a unit of pressure based on an absolute scale, defined as exactly 1/760 of standard atmospheric pressure.
To learn more about torr refer the given link:-
https://brainly.com/question/13893899
#SPJ4
The number of electron energy levels in a magnesium atom is________ a.1 b.2 c.3 d.4 e.5
The number of electron energy levels in a magnesium atom is: 3
What is electron energy level?The set distances from an atom's nucleus where electrons may be found are referred to as energy levels (also known as electron shells). Higher energy electrons have greater energy as you move out from the nucleus. A region of space inside an energy level known as an orbital is where an electron is most likely to be located.
An electron rotating in a shell is connected with a particular amount of energy. When it moves from one energy level to another, or when it leaps to another shell, the energy changes. As a result, a shell also indicates an electron's energy along with its position, and these are known as energy levels.
The distribution of electrons in the electron shells for the magnesium atom is given as : 2,8,2.
So, the total number of energy levels are 3.
Correct option: (c)
To know more about energy levels refer to:
https://brainly.com/question/20561440
#SPJ1
sugar is a covalent compound. how do molecules of a sugar sample behave when the sample dissolves in water? responses the solute molecules separate from each other by dispersion. the solute molecules separate from each other by dispersion. the solvent molecules separate from each other by dispersion. the solvent molecules separate from each other by dispersion. the solvent molecules separate from each other by ionization. the solvent molecules separate from each other by ionization. the solute molecules separate from each other by ionization.
Molecules of a sugar sample behave when the sample dissolves in water the solute molecules separate from each other by dispersion. Option B.
Sucrose is a polar molecule. Polar water molecules attract the negative and positive regions of polar sucrose molecules, causing sucrose to dissolve in water. Sugar is a covalent, slightly polar compound that can dissolve in water due to its polarity.
Every time you break down a covalent compound like sugar you see a physical change. The molecules move further apart in the solvent but do not change. Dissolving sugar in water is a physical change. This is because no new matter is formed. Also, the process is reversible. Water and sugar are separated by evaporation followed by condensation and crystallization.
Learn more about A covalent compound here:- https://brainly.com/question/11651796
#SPJ4
a sample of an unknown gas effuses in 10.6 min. an equal volume of h2 in the same apparatus under the same conditions effuses in 2.42 min. what is the molar mass of the unknown gas?
Therefore, the molar mass of the unknown gas is 50 g/mol
What is Molar Mass?
Molar mass can be characterized as 'mass per mole.' all in all, molar mass is the amount of the mass of the relative multitude of iotas tracked down in one mole of a substance. It is communicated in units of grams per mole.
Molar mass is portrayed for components or atoms. On account of single components or individual molecules, the molar mass would simply be the component's mass communicated in nuclear mass units. As such, the nuclear mass and the molar mass of a singular iota are precisely equivalent. As molar mass and nuclear mass are equivalent for individual molecules, molar mass can be utilized to gauge the molecule's character. For instance, the nuclear mass of He is 4. Helium is found as monoatomic in nature, implying that it has just a single particle, so its molar mass is likewise 4.
MW H2 = 2
MW 2 = ?
rate 1 = 1/12.1
rate 2 = 2.42
Apply graham law
Rate1/rate2 = sqrt(MW2/MW1)
(12.1/2.42)^2 = MW2/2
MW = 2(12.1/2.42)^2 = 50 g/mol
Therefore, the molar mass of the unknown gas is 50 g/mol
Learn more about Molar Mass from given link
https://brainly.com/question/837939
#SPJ4
write the balanced net ionic equation for the reactions that occur when the given aqueous solutions are mixed. include the physical states. a. silver nitrate, agno3 , and magnesium bromide, mgbr2
A. AgBr = Ag+(aq) + Br(aq) (s)
B. H+(aq), OH(aq), and water (l)
C. NH4Cl + NH4+(aq) + Cl(aq) (s)
For the processes that take place when the two provided aqueous solutions are combined, we want to develop the balanced net ionic equations.
A net ionic equation: What is it?a chemical equation that just includes the ions going through chemical changes during the reaction.
A. Magnesium bromide, MgBr2, and silver nitrate, AgNO3.
AgBr = Ag+(aq) + Br(aq) (s)
Because they are spectator ions, NO3 and Mg2+ are excluded from the net ionic equation.
B. potassium hydroxide, KOH, and perchloric acid, HClO4. H+(aq) + OH(aq) H2O (l)
Because they are spectator ions, ClO4 and K+ are excluded from the net ionic equation.
To know more about ionic equation visit:-
https://brainly.com/question/15466794
#SPJ4
Construct the MO diagram of He2+ molecule. Label the bonding and antibonding molecular orbital. Show how bond order is calculated.
He2+ molecule's MO diagram's computed bond order is 0.5.
What is the magnetic makeup and bond order of the He2 molecule?The bond order of $ H 2 + $ is therefore $ 0.5 $. One unpaired electron can be seen in the antibonding orbital when looking at the electrical arrangement. Therefore, $He 2+$ is paramagnetic.
Which of the following best represents the h2 He2 stability order?Thus, the proper sequence of stability is: "H 2gtH 2" and "He 2" are capitalized. Additionally, because the hydrogen molecule ion has only one electron and no electron-electron repulsion, "H 2" (plus) is a little bit more stable than "He 2" (plus). Due to its higher bond order (bond order = 1) than He2+ (bond order = 1/2), the He22+ ion is more stable.
To know more about bond order visit:-
https://brainly.com/question/16526043
#SPJ4
when 20.87 g of propane is combusted in excess oxygen, how many grams of co2 are produced and how many grams of o2 are consumed?
When 20.87 g of propane is combusted in excess oxygen 62.577g of co2 are produced and 75.89grams of o2 are consumed
What are combustion reactions?
combustion is a chemical reaction between two or more chemicals, usually involving oxygen, that produces heat and light in the form of a flame. When a material reacts quickly with oxygen, a combustion reaction happens (O2).
During the combustion of propane the following reaction occurs:
C3H8(g)+5O2(g)→3CO2(g)+4H2O(l)
We know that the combustion of 1 mole of propane gives 3 moles of carbon dioxide.
= 20.87 g/44.10⋅g⋅mol−1=0.473⋅mol
And since, per the stoichiometric equation, if 0.200⋅mol propane is completely combusted, 3×0.473mol×44.10⋅g⋅mol−1=62.5779g
Oxygen consumed can be considered as x
44x=20.87x160=75.89g
Therefore when 20.87 g of propane is combusted in excess oxygen 62.577g of co2 are produced and 75.89grams of o2 are consumed.
To know more about combustion reactions from the given link
https://brainly.com/question/13251946
#SPJ4
the sense internal and external stimuli, and send out responses in the form of chemical messengers called .
the sense internal and external stimuli, and send out responses in the form of chemical messengers called Neurotransmitters: The Body's Chemical Messengers. Not only do the neural signals travel via electrical charges within the neuron, but they also travel via chemical transmission between the neurons.
Your body needs neurotransmitters, which are chemical messengers, to function. From one neuron (nerve cell) to the following target cell, they are responsible for transporting chemical signals, or "messages". Another nerve cell, a muscle cell, or a gland may be the next target cell. The seven "small molecule" neurotransmitters (acetylcholine, dopamine, gamma-aminobutyric acid (GABA), glutamate, histamine, norepinephrine, and serotonin) fortunately carry out the majority of the functions. Glutamate. With the help of GABA, glutamate (Glu), the most potent excitatory neurotransmitter in the brain, maintains homeostasis. It is produced by neurons in the cerebral cortex and many of the sensory pathways that enter the central nervous system.
Learn more about neurotransmitters here:
https://brainly.com/question/9725469
#SPJ4
11. The boiling point of ethanol, C2H5OH, is 78.5°C. and the boiling point for dimethyl ether, CH3OCH3, is-24.0 °C. Explain why you should expect C2H5OH to have a higher boiling point than CH3OCH3 in three sentences or less.
Ethanol has a higher boiling point than dimethyl ether due to intermolecular hydrogen bonding.
Why ethanol has a higher boiling point than dimethyl ether when both have the same molecular weight?In ethanol, the hydrogen of the hydroxyl group is attached to an electronegative oxygen atom. Due to this reason, the hydrogen is free to form hydrogen bonding with other ethanol molecules. The hydrogens of dimethyl ether are bound with a carbon atom which is not electronegative. Hence, the hydrogens do not form any intermolecular hydrogen bonding with other dimethyl ether molecules. This is why ethanol boils at a higher temperature compared to dimethyl ether.
To learn more about intermolecular hydrogen bonding click here:
brainly.com/question/13677258
#SPJ4
a) Draw Lewis structures for: CH2NH, HCN, CH3NH2, [HN(CH)NH]- . One of them needs 2 resonance structures.
b) Rank them in order of decreasing CN bond length.
The nitrogen and oxygen atoms stimulated the resonance structure of the carbon atom, which caused the carbon atom to exhibit positive electricity while concurrently exhibiting negative electricity in the nitrogen and oxygen atoms.
What is the CH3NH2's structural geometry?
Tetrahedral is the shape of the C and N atoms in the CH#NH2 molecule. The geometry of CH3NH2 is hence tetrahedral.
Are there polar bonds in CH3NH2?
(a) Both the covalent molecules CH3NH2 and CH3F have polar links. While the dipole in CH3F cannot H-bond, that in CH3NH2 can. As a result, CH3NH2 interacts more strongly and has a higher boiling point. (c) Although CH3OH and CH3CH2OH may both form hydrogen bonds, CH3CH2OH has more CH bonds, resulting in stronger interactions between dispersion force.
To know more about CH3NH2 visit;
https://brainly.com/question/9825885
#SPJ4
which graph shows the relationship between pressure and kelvin temperature
A line graph would best represent the relationship between pressure and Kelvin's temperature.
The x-axis would represent the Kelvin temperature while the y-axis would represent the pressure. As the Kelvin temperature increases, the pressure should also increase.
As the Kelvin temperature increases, the pressure also increases in a linear fashion. This is because when the temperature increases, the molecules of a gas move faster, resulting in higher pressure.
For more questions like Graph click the link below:
https://brainly.com/question/23006202
#SPJ4
Methyl isocyanate, shown as resonance structure 1, can also be represented by other resonance structures. Draw the next most important resonance contributor. Then add curved arrows to each structure to show delocalization of electron pairs to form the other structure. HC N=C=0 Resonance Structure 2 Resonance structure 1 Include lone pairs of electrons, formal charges, and hydrogen atoms. You can add condensed hydrogens using the More menu, selecting +H and clicking on the carbon as many times as needed. Draw curved arrows on resonance structure 1. Draw resonance structure 2 and curved arrows. Select Draw Rings More Erase Select Draw Rings More HC - "
Resonance structures are the Lewis structures that describe the delocalization of electrons in a molecule.
Resonance Structure 1 of methyl isocyanate:
This Include lone pairs of electrons, formal charges, and hydrogen atoms.
The formal charge on both Carbon atom is = 4 valance - 4 bonds = 0
Formal charge (O) = 6 V.E - 2 bonds - 4 non bonding electrons = 0
Formal charge on (N) = 5 V.E - 3 bonds - 2 non bonding electrons = 0
F.C. on H = 1 V.E. - 1 bond = 0
Overall charge on the molecule = 0 charge
Structure 2:
Formal Charge on Both (C)= (4valence e- - 4 bonds)= 0
Formal charge (O)= (6 V.E-1Bonds-6 nonbonding electrons)= -1 Charge
Formal Charge on (N)= (5 V.E-4Bonds-0 nonbonding electrons) = +1 Charge
F.C on H= (1 V.E-1Bond)=0
Overall Charge on the molecule= +1 -1 =0 charge
To learn more about Resonance structure of methyl isocyanate please visit:
https://brainly.com/question/21684922
#SPJ4
here structure is not given. i solved this from a similar question. find if it is helpful.
