CH3NH2 + HOH ==> CH3NH3^+ + OH^-Which molecule/ion accepts a proton. That is the base. Which molecule/ion donates a proton. That is the acid.
A stable subatomic particle known by the symbol for "proton"
e elementary charge, p, H+, or 1H+ having a positive electric charge. Its mass is 1,836 times greater than an electron's mass and just a little bit less than that of a neutron (the proton–electron mass ratio). "Nucleons" refers to protons and neutrons together, each of which has a mass of roughly one atomic mass unit (particles present in atomic nuclei).
Each atom. has a nucleus. that contains one or more protons. In order to keep the atomic electrons bound, they offer the central attractive electrostatic force. An element's defining characteristic, known as the atomic number, is the number of protons in the nucleus (represented by the symbol Z)
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if a given reaction has got a rate constant value of 5.2 x 10^-3 what would be the order of that reaction
If a given reaction has got a rate constant value of 5.2 x 10^-3. The order reaction that reaction is 2nd order.
The order reaction is the relationship between the rate of a chemical reaction and the quantity of the species involved. To discover the reaction order, one must first ascertain the rate expression (or rate equation) of the pertinent process. The entire species mixture involved in the reaction may be understood once the rate equation has been established. The order of the reaction can be determined using the rate's dependency on the concentration of each component. For instance, the rate of a first-order reaction is solely dependent on the concentration of one species. The reaction order of a chemical reaction's various features are listed below. The order of reactions is a representation of the number of species whose concentration directly affects the rate of reaction. It can be calculated by adding up all of the exponents for the concentration terms in the rate statement. The order of the balanced reaction is unaffected by the stoichiometric coefficients for any species present.
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why does i2 have a higher boiling point than f2
Iodine molecules will be forced to cling together by this force since it is so powerful. The iodine molecule is therefore extremely tough to break. Iodine has a higher boiling point as fluorine as a result.
What exactly is boiling point?
The temperature when a liquid's vapor pressure equals that tension of the gas below it is known as the boils point of the liquid. The degree at which a liquid's vapor pressure equals one atmosphere is called the liquid's typical boiling point (760 torr). The view from a distance. view from a distance of a bubbles in boiling water.
High boiling point: What does that mean?
It measures the point where a chemical boils, to put it simply. A higher the boiling point denotes stronger intermolecular forces, similar to the melting point.
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On a camping trip, Susan decides to cook smores with her family. Describe all possible forms of heat transfer that Susan may come into contact with.
The ways that Susan may come into contact with heat transfer is by;
ConductionConvectionRadiationWhat is heat transfer?When we are talking about heat transfer, what we are looking at is the transfer of heat from one point to the other. We know that the transfer of heat would have to do with the temperature difference between the materials that are involved. This is because, heat is defined as the form of energy that does exist any time that we have a temperature difference two bodies.
When you are cooking, the three types of heat transfer would come into play and these are conduction, convection and radiation. When the pot is put on fire, we would notice that the pot would heat up after some time and this is due to conduction.
After it has heat up, the water that is at the lower layer would rise up and replace the water that is at the lower layer of the pot. This is heat transfer by convection.
Some one that stands some distance from the fire place would soon begin to feel heat and this would occur by radiation.
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Which of the following has a standard Gibbs free energy of formation equal to zero? (i) Br2le) (ii) O2 (ii) NaOH (s) O (ii) only O (i) only O (i) and (ii) O (ii) and (iii) O (i), (ii), and (iii) O (ii) only
Answer:
3
Explanation:
there element are approximately together and substitute themselves
how much heat is absorbed or released in the reaction of 20.0 g of nh3 with sufficient oxygen to produce no (g) and h2o (l)?
1062.3 KJ heat is absorbed or released in the reaction of 20.0 g of nh3 with sufficient oxygen to produce no (g) and h2o (l).
The heat absorbed or released in the reaction of 20.0 g of NH3 with oxygen to produce NO and H2O depends on the specific conditions of the reaction and the enthalpy change associated with the reaction.
The general equation for the reaction of NH3 with oxygen to produce NO and H2O is:
4NH3 + 5O2 -> 4NO + 6H2O
The enthalpy change for this reaction, which is the heat absorbed or released during the reaction, can be calculated using the enthalpy changes of formation of the reactants and products. The enthalpy change of formation is the heat absorbed or released when a substance is formed from its elements in their standard states.
The enthalpy change of formation of NH3 is -46.2 kJ/mol, the enthalpy change of formation of O2 is 0 kJ/mol, the enthalpy change of formation of NO is +90.3 kJ/mol, and the enthalpy change of formation of H2O is -285.8 kJ/mol.
To calculate the enthalpy change for the reaction, we can use the following equation:
ΔH = (4 x -46.2 kJ/mol) + (5 x 0 kJ/mol) - (4 x +90.3 kJ/mol) - (6 x -285.8 kJ/mol)
This gives us an enthalpy change of -902.8 kJ/mol.
To convert this to the heat absorbed or released for 20.0 g of NH3, we need to multiply by the number of moles of NH3 used in the reaction. The molar mass of NH3 is 17.0 g/mol, so 20.0 g of NH3 is equal to
20.0 g / 17.0 g/mol = 1.18 moles of NH3.
The heat absorbed or released in the reaction of 20.0 g of NH3 with oxygen to produce NO and H2O is therefore -902.8 kJ/mol x 1.18 moles = -1062.3 kJ.
This means that the reaction absorbs 1062.3 kJ of heat from the surroundings.
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Select the vibrations that should be infrared active. CH;` CH,CHCHC_CH, the C=C stretch CH;` CHCHC_CCHCHC CH;, the C=C stretch (CH;C CH2h ' C=O, the C=0 stretch trans-4-octene, the C=C stretch (CH3)3C-C1, the €-Cl stretch
A change in the molecule's dipole moment brought on by vibrations caused by IR radiation absorption is required for a molecule to be IR active.
(Dipole moment = 2*charge × length)
1. Here C=O is already a polarized bond due to the difference in electronegativities of C and O. Hence the C=O stretch is IR active since the vibrations from absorbing IR radiations will change the dipole moment of the molecule
2. Since both sides of the carbon triple bond is different, effective charge on both carbons will be different and hence the vibrations will cause change in dipole moment of the molecule which makes the molecule IR active
3. Here both sides of the carbon triple bond are same(symmetrical molecule) the effective charge on both sides are same hence vibrations will not change the dipole moment and hence the molecule is IR inactive
4. C-Cl bond is already polarized, so a dipole moment already exists and vibrations upon IR absorption will change the dipole moment of the molecule. Hence the molecule is IR active
5. Trans-3-hexene is a symmetrical molecule hence the vibrations along C=C will not cause a change in the dipole moment of the molecule . Hence the molecule is IR inactive
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What is the pOH when 10 mL of 0.2 M CH3NH2 (pKb = 3.36) is titrated with 10 mL of 0.1 M HCl?
The solution of the base would have a pOH of 3.66 when titrated.
What is the pOH of the base?We know that pOH can be obtained from the concentration of the base and we can be able to work out the pOH when we attempt to apply the Henderson–Hasselbalch equation to a basic solution.
Number of moles of the salt = 10/1000 * 0.2 M
= 0.002 moles
Number of moles of the acid = 10/1000 L * 0.1 M
= 0.001 moles
Total volume = 10 mL + 10 mL = 20 mL or 0.02 L
Molarity of the salt = 0.002 moles/0.02 L
= 0.1 M
Molarity of the acid = 0.001 moles/0.02 L
= 0.05 M
Then;
pOH = pKb + log (salt/base)
pOH = 3.36 + log( 0.1 M/0.05 M)
pOH = 3.66
The pOH of the system is 3.66
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what is the net ionic equation when a solution of silver nitrate is mixed with a solution of sodium phosphate?
the net ionic equation when a solution of silver nitrate is mixed with a solution of sodium phosphate is silver nitrate(aq) + sodium phosphate(aq) → silver phosphate(s) + sodium nitrate(aq AgNO3(aq) + NagPO4(aq).
The net ionic equation is a synthetic calculation that only exhibits the components, substances, and ions that are involved directly in the chemical reaction. A net ionic formula illustrates only the chemical involved in a response, whereas a full ionic equation depicts the spectator ions as well. If there is no gross ionic equation to rebalancing, you encounter what is known as a molecular equation (or a complete molecular equation). These are more challenging to balance because the elements that are reduced and oxidised were also mixed in with substances that are not being lowered or oxidised.
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calculate the formal charges of the atoms in co, co2, and co3 2-.
Answer:
For CO:
Formal charge of C = 4 - 2 - 6/2 = -1
Formal charge of O = 6 - 2 - 6/2 = +1
2. For CO₂:
Formal charge of C = 4 - 0 - 8/2 = 0
Formal charge of each O = 6 - 4 - 4/2 = 0
3. For CO₃²⁻:
Formal charge of C: 4 - 0 - 8/2 = 0
Formal charge of two O's single-bonded to C = 6 - 6 - 2/2 = -1
Formal charge of the O double-bonded to C = 6 - 4 - 4/2 = 0
Determine whether each of the following amino acids is polar, nonpolar, positively charged _ or negatively charged at pH 7 Polar and neutral Nonpolar Positively charged Negatively charged glutamate arginine Leu Gln hydrophobic amino acids CH OOC CHz- COO NH; HyC CoO NH; NH,
The polar and neutral, non-polar, positively and negative charged amino acids are as follows -
Gln is polar.
C4H6O4N, aspartate, glutamate, is negatively charged, C9H7O3N, arginine, lysine, is positively charged,
hydrophobic amino acids, leucine and C3H7O2N are non polar amino acids.
Amino acids are the compounds having carboxyl and amino terminal at each end. They fold together to form secondary structures such as alpha helix, beta sheets and others. Upon more folding and turning they acquire three and four dimensional structure which imparts functional activity to the proteins.
Amino acids can be polar, non-polar, postively or negatively charged. The net ionic charge decides their postively or negatively charge. Also, aliphatic groups make the amino acids non-polar while presence of oxygen, sulphur, nitrogen gives polar character.
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The complete question is attached in figure.
a 1.513 g sample of khp (c8h5o4k) is dissolved in 50.0 ml of di water. when the khp solution was titrated with naoh, 14.8 ml was required to reach the phenolphthalien end point. calculate the molarity of the naoh solution? khp is a monoprotic acid.
molar mass of KHP ( C8H5O4K)= 8*12+5+4*16+39=204
( atomic weights : C=12, H=1, K=39 and O= 16)
moles of KHP= mass/molar mass = 1.513/204 =0.0074
The reaction between KHP and NaOH is
KHC8H4O4(aq) + NaOH(aq) => KNaC8H4O4(aq) + H2O(l)
1 mole of KHP requires 1 mole of NaOH;
moles of KHP=0.0074
moles of NaOH= 0.0074
concentration of NaOH= moles/ Volume in L, 1000ml= 1L, 14.8ml= 14.8/1000L=0.0148L
concentration of NaOH=0.0074/0.0148=0.5M
The molarity of NaOH is 0.5M
Molar Mass:
In chemistry, the molar mass of a compound is defined as the mass of a sample of that compound divided by the amount of substance. This is the number of moles of that sample measured in moles.
Molarity:
Molarity is used to describe the concentration of a solution. Molarity, also called molarity, is the number of moles of solute (dissolved substance) per liter of solution.
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Which of the following statements correctly describe the viscosity of a liquid? Select all that apply.
- The viscosity of a given liquid decreases with increasing temperature.
- Viscosity is a liquid's resistance to flow.
- A liquid with stronger intermolecular forces will have a higher viscosity.
Statements that correctly describes the viscosity of a liquid : viscosity decreases with increasing temperature, viscosity is a resistance to flow and liquid with stronger intermolecular forces will have a higher viscosity.
What describes the viscosity?Viscosity describes the internal friction of moving fluid. Fluid with large viscosity resists motion because molecular makeup gives a lot of internal friction.
Things that determine the viscosity are: fluid temperature, flow conditions and pressure. Viscosity of fluid is a measure of resistance to deformation at a given rate.
Viscosity is determined by structural properties of the molecules and raising the temperature reduces viscosity of the solution or fluid.
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when 0.485 g of compound x is burned completely in a bomb calorimeter containing 3000 g of water, a temperature rise of 0.285°c is observed. what is δu of the reaction for the combustion of compound x? the hardware component of the calorimeter has a heat capacity of 3.81 kj/°c. the specific heat of water is 4.184 j/g·°c. the molar mass of compound x is 56.0 g/mol.
The change in internal energy for 56 g/mol of the molecule is discovered to be e -539 kJ/mol.
A reaction's internal energy change is represented by the symbol U. U = calorimeter heat plus solution heat for a reaction in the bomb calorimeter.
Heat capacity equals heat Temperature
Regarding, 0.485 g compound
For the 56 g/mol compound, U = 3.81 0.285 + 4.184 3000 0.285 U = 4.67 kJ
U = moles of energy/mass
56 U equals 539 kJ/mol at U = 4.67/0.485.
The whole amount of energy that a thermodynamic system has inside of it is known as internal energy. It is the energy required to develop or prepare the system in its current internal condition, and it comprises both internal kinetic energy and potential energy contributions. It keeps track of the system's energy gains and losses brought on by modifications in its internal state. [1][2] It excludes any external energies from the surrounding force fields as well as the kinetic energy of motion of the entire system. The first law of thermodynamics, which is based on the fact that an isolated system's internal energy is constant, is stated as the law of conservation of energy. The interior energy is a vast quality.
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Ethane has the formula CH3CH3. What is the predominant intermolecular force between ethane molecules? Group of answer choices dipole forces dispersion forces hydrogen bonds ionic bonds
The predominant intermolecular force between Ethane is dispersion forces.
The Ethane molecule has the formula CH₃CH₃.
Usually the strongest intermolecular force is hydrogen bonding but in the case of Ethane molecule the strongest intermolecular force is dispersion forces.
The dispersion forces also known as London dispersion forces is the weakest intermolecular force this is the force that is a temporary attractive force which results when the polarization occurs between the atoms of the molecule.
This same intermolecular force is observed in the molecule of Ethane.
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Why is the enthalpy of formation of oxygen zero?
The enthalpy of formation of oxygen is zero because the enthalpy of formation any compound to form its elemental state is zero.
Here in this case, because oxygen is present in its elemental state it has zero enthalpy of formation because it does not require any energy to occur in a naturally occurring state.
Not only oxygen if any other compound is present in its naturally occurring state then it will have zero enthalpy of formation.
Because it does not require any amount of energy for any element to occur in its elemental state.
So, this is why we are concluding that because oxygen is present in its elemental state it has 0 enthalpy of formation.
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What intermolecular forces are found in carbon disulfide, CS2? O Dipole-dipole forces O Dispersion forces O lon-dipole bondingO Hydrogen bonding
The intermolecular forces that are found in carbon disulfide CS2 is two bond diploes.
What is intermolecular forces?Intermolecular forces are the forces that are between to of molecules. And so that's different from an to the relative intramolecular force, whichever is the force within a molecule.
London dispersion forces supposedly have the least by its strength out of all the intermolecular forces. But of CS2, which has only the dispersion forces, has a higher boiling point (and thus stronger and the intermolecular forces) than COS, which has dipole-dipole attraction in to the addition to dispersion forces.
I suppose that it had something to do with CS2 having a thicker/more than inducible electron shell, but it is then a new question arises: how would you know if the dispersion forces in one molecule are stronger of that the dipole-dipole forces in another.
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31. Applying Concepts Element Q forms
compounds with element X and with element Z.
Write the formulas for these two compounds.
formula be for these two compounds
—HELP!!! ASAP
find the quantity of a gas in moles if 6.38 l at 358oc has a pressure of 955 torr. group of answer choices 0.285 mol 207 mol 0.155 mol 0.273 mol 6.45 mol
Given that,
P = 955 torr = 1.25658 atm
V= 6.38 L
T = 358 C = [273 + 358] K
n= PV/RT
= 1.25658 atm *6.38 L/0.0821 L atm/Molk * [273 + 358] K
=0.155 mol
Result:
number of mols = 0.155 mol
One of the four fundamental states of matter is gas. A pure gas can be composed of individual atoms, elemental molecules composed of one type of atom, or complex molecules composed of several atoms. A gas mixture, like air, has a number of pure gases.
A gas is a fluid with no defined size or shape. When a gas is enclosed in a closed container, it expands to fill the container. The air you breathe is an example of a gas. The most common type of gas is air (the air we breathe is a gas). It is also a mixture of several gases, including nitrogen, oxygen, and carbon dioxide.
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Use the law of conservation of mass to explain why the equation 2 H2 + O2 = 2 H2O balanced
Draw a correct Lewis structure for XeI2 (Xe in middle, surrounded by I's ) that puts a 0 formal charge on all atoms. How many lone pairs (unshared pairs) are on the central atom? --------------------------------------------------------------------------------------------------------------------------------------------------- 2) A 0.3876 gram sample of a gaseous compound occupies 142 mL at 150 degrees C and 775 torr. What is the molar mass of the compound? Assume ideal behavior. M = dRT/P M = molar mass Hint: you must convert torr to atm 760 torr = 1 atm Hint: you must convert oC to K by adding 273 Hint: you must convert mL to L
On the Xenon atom (Xe) and both of the Iodine atoms, there are three lone pairs and the molar mass of sample is 86.83g/mole..
(a) The central Xenon atom (Xe) of the XeI2 Lewis structure is surrounded by two Iodine atoms. The Xenon atom (Xe) and each iodine atom are connected by two single bonds.
(b) Given that a gaseous sample's mass(m) is 0.3876 grams.
This sample's volume (v) is 142 ml, = 0.142 L, and its temperature (t) is 150 °C, = 150 + 273 , = 423 K
pressure (p) equals 1.09174 atm or 775 torr.
As a result of the equation pv = nRt, n=m/M and M = mRt/pv, which equals 0.3876x0.0821x423/1.0917x0.142, = 13.46068908/0.1550214, = 86.83g/mole.
The resulting molar mass is 86.83g/mole.
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which of the following statements correctly describe bonding and intermolecular forces? select all that apply.
Intermolecular forces involve partial or small charges that are far apart and are relatively weak.
Bonding forces occur within the nucleus of the atom and are therefore strong
Covalent bonds are a type of intermolecular force since they are found in molecules.
Bonding forces are generally much stronger than intermolecular forces.
For a molecular substance, the strength of the intermolecular forces determines the physical properties of its phases.
Bonding forces are stronger than intermolecular forces, for molecular substance, strength of the intermolecular forces determines physical properties of phases, Intermolecular forces involve partial or small charges that are far apart and are relatively weak.
What can be said about the bonding and intermolecular forces?Intermolecular force is the force that mediates interaction between molecules including electromagnetic forces of attraction or repulsion which acts between atoms and neighboring particles (atoms or ions).
Bonding forces are the forces of attraction or repulsion which acts between neighboring particles like atoms, molecules or ions. Bonding force determines the elastic modulus (Young's modulus) of a material.
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a student pipetted exactly 50.00 ml of 0.1038 m hcl into a 250-ml erlenmeyer flask containing 0.3735 g of an antacid tablet. the solution was heated and boiled to remove any co2. approximately 25 ml of water and three drops of phenolphthalein indicator was added to the erlenmeyer flask containing the hcl and antacid tablet. a 50 ml buret was rinsed and filled with a 0.1017 m naoh solution. the initial volume of the buret was read and recorded as 2.30 ml. the naoh solution was carefully added to the antacid/hcl solution until a permanent very slight pink coloration was noticed. the buret was read again and recorded as 22.82 ml. calculate the acid equivalent (g hcl/g antacid) of the antacid tablet.
The acid equivalent of the antacid tablet is 0.303 g HCl/ g antacid.
What is mole?
In chemistry, the term "mole" (sometimes written "mole") refers to a standard scientific unit for measuring vast amounts of extremely small objects like atoms, molecules, or other specific particles.
The mole represents 6.02214076 × 10²³ units, an astronomically huge number.
We have,
Total moles of HCl added = 0.1038 M × 50.0 mL × 1L/1000mL
= 0.00519 mol
Now, volume of NaOH used = 22.82mL - 2.30 mL
= 20.52 mL
Moles of NaOH used = 0.1017 M × 20.52 mL × 1L/1000mL
= 0.00209 mol
Moles of HCl that reacted with antacid = 0.00519 - 0.00209 mol
= 0.0031 mol
Total mass of HCl reacted = 0.0031 × 36.45g HCl / 1mol HCl
=0.113 g
Acid equivalent of antacid tablet = 0.113g HCl / 0.3735g antacid
= 0.303 g HCl/ g antacid.
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How many grams of iron could be
recovered from 80.0 g of an ore that is known to be 76.0 % Fe3O4?
Answer:
43.8 g of iron can be recovered
Explanation:
First get the mass of Fe3O4 in the ore:
80g Ore * (76 g Fe3O4 / 100 Ore) = 60.8 g Fe3O4
Then get number of moles of Fe3O4:
60.8 g Fe3O4 * 1 mol / 231.535 g = 0.262 mol Fe3O4
**231.535 g is the molar mass of Fe3O4
Then get number of moles of Fe:
0.262 mol Fe3O4 * (3 Fe / 1 Fe3O4) = 0.786 mol Fe
** 3 atoms of Fe in every Fe3O4
Finally convert moles of Fe to grams of Fe:
0.786 mol * 55.845 g/mol = 43.79 g Fe --round to 3 sig figs--> 43.8 g Fe
What is the formula for copper (II) nitrite?
a. Cu3N2
b. Cu(NO2)2
c. Cu3(NO3)2
d. Cu3(NO2)2
The formula for copper (II) nitrite is B: 'Cu(NO3)2'.
Copper (II) nitrate is a chemical compound with the formula 'Cu(NO3)2'. Generally referred to as simply copper nitrate, the anhydrous state is a blue, crystalline solid. The hydrated state of copper (II) nitrate, is also blue, which is commonly used in school and college laboratories to demonstrate chemical voltaic cell reactions. The hydrated and anhydrous forms have remarkably different characteristics, illustrating the effect of water on crystallization.
"
Note: The question with correct options are:
What is the formula for copper (II) nitrite?
a. Cu3N2
b. Cu(NO3)2
c. Cu3(NO3)2
d. Cu3(NO2)2
"
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mass of 400ml beaker
Empty 400-mL beaker weight in grams: 130.778 g. glass and is lab, food and dishwasher safe.
What does a 500 ml beaker weigh?The 500 ml beaker weighs 250 g when it is empty & 645 g when it is full of an unidentified liquid.
A 400 mL beaker's height is how tall?Beaker is 5.1" tall and has a inner and outer size of 67.5mm and 70mm, respectively.The heat tolerances for Eisco Lab Borosilicate 3.3 Glass are as follows:-515°C for strain, 565°C for annealing, and 820°C for softening.
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what is the [h3o ] of a 0.100 m solution of hclo? hclo has a ka = 2.9 × 10−8?
pH = 4.3. The hydrogen ion shown above H⁺ is equivalent to the hydronium ion shown.
Is hydronium an H+ ion?This material is an ion because it has a charged and is made up of a hydrogen atom with a charge (H+) added. Its formula is H3O+, and it is referred to as the hydronium ion. Whenever an acid comes into contact with water, the hydronium ions are always created. generating H3O+, the acid's H+, by continuously reacting with the adjacent water molecule.
A hydronium is what kind of ion?In all alkaline aqueous solutions, the hydroxide ion ion (H3O+), also referred to as nucleophile water, is present. Brnsted acids release one or more of their electrons as h+ ions, which combine with water molecules.
Briefing:HOCL ⇆ H⁺ + 0CL⁻
Kₐ =H⁺ * 0CL⁻/HOCL
Ka of HOCl = 2.9×10⁻⁸
Kₐ = x²/C
2.9×10⁻⁸ = x²/ 0.100M
x = H⁺= 5.4 * 10⁻⁵
pH = -log H⁺ = 4.3
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Which of these elements has the same number of valence electrons as neon Ne?a. carbon (C). b. phosphorus (P). c. nitrogen (N). d. oxygen (O)
Answer:
C. Nitrogen (N) has the same number of valence electrons as neon Ne. Both elements have a total of 8 valence electrons in their outermost energy level.
Explanation:
The element neon has the atomic number 10, which means it has 10 electrons in its outermost energy level. The element that has the same number of valence electrons as neon is therefore also the element that has the atomic number 10, which is neon itself. The other elements listed (carbon, phosphorus, nitrogen, and oxygen) have atomic numbers 6, 15, 7, and 8 respectively, so they do not have the same number of valence electrons as neon.
How many atoms are in 15.6 grams of silicon? 0.555 3.34 x 1023 2.64* 1026 438
The atoms that are in 15.6 gms of silicon are 3.66×10^23 present in the atoms.
Silicon (Si) has an atomic quantity of 14 and used in lots of present day devices. Its packages are huge and varied, from glass home windows to feeding bottles, incorporated circuits to enamels.
The quantity of atoms in 15.6 grams of silicon. To begin the molar mass of silicon needs to be regarded that's 28.1 gmol.Using this information, convert the mass of the silicon into moles as proven below:15.6 g (128.1gmol)=15.628.1 mol=0.5551601423≈0.555 mol.Using the reality that one mole is identical to 6.602×1023 atoms, convert the moles of silicon into the quantity of atoms as proven:0.555 mol(6.602×10^23 atoms1 mol)=(0.555)(6.602×10^23) atoms=3.66411≈3.66×10^23 atoms.There are 3.66×10^23 atoms in 15.6 grams of silicon.Read more about silicon;
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draw the final organic product of the following three-step reaction of bromomethylbenzene.
The final organic product on reaction of bromomethylbenzene is carbonyl compound of ketones.
What are ketones ?
Your body produces ketones, which are acids, when it burns fat for energy. Your body's cells typically use blood glucose (sugar) as an energy source. Consuming carbohydrates provides you with glucose. Your body will burn fat for energy if your cells can't receive enough glucose. This procedure results in ketones.
The substance sodium cyanide is nucleophilic. As a result, CN behaves as a nucleophile. The bromine on the benzyl chloride molecule will act as a leaving group, which causes Br to be replaced with CN. The SN2 substitution reaction is used to carry out this reaction and 4 – bromobenzyl cyanide is formed in the 1st step.
In the next step 4 – bromobenzyl cyanide undergoes two step reaction with grignard reagent and hydronium ion. and give rise to final product which is a ketone.
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Which compound will contain the most polar bond? A. bromoethane, H3CCH2Br B. ethene, H2CCH2 C. ethane, H3CCH3 D. chloroethane, H3CCH2Cl
The compound that will contain the most polar bond is D. chloroethane, H3CCH2Cl. This is because the bond between the carbon and chlorine atoms is more polar than the bonds between the carbon and hydrogen atoms in the other compounds. The polarity of a bond is determined by the difference in electronegativity between the atoms involved in the bond. Chlorine has a higher electronegativity than carbon, so the bond between them will be more polar. The other compounds listed have bonds between carbon and hydrogen atoms, which have a smaller difference in electronegativity and are therefore less polar.
