In the titration of the 20.0 ml of 0.200 m HOBr with 0.100 M NaOH, The the pH after 20.0 ml of the NaOH solution is added is 10.72.
The moles of the HOBr = moles of the NaOH
Volume × 0.1 = 0.02 × 0.2
Volume of NaOH = 0.04 L
The moles of the salt = moles of the HOBr
0.02 × 0.2 = 0.004 moles
The total volume of the solution = 0.04 + 0.02
= 0.06 L
The concentration of salt = 0.004 / 0.06
= 0.067 M
[OH⁻] = √ aKw / Ka
a = [salt] = 0.067 M
[OH⁻] = √( 0.067 × 10⁻¹⁴ / 2.5 × 10⁻⁹ ) M
= 5.18 × 10⁻⁴ M
pOH = -log(5.18 × 10⁻⁴)
pOH = 3.28
pH = 14 - pOH
= 14 - 3.28
pH = 10.72
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What is the Number of Sigma and Pi bonds in a Benzene Molecule?
In a benzene molecule, there are three sigma bonds and six pi bonds.
What is benzene molecule?
Benzene has the molecular formula C6H6 and is an organic chemical compound. It is a highly aromatic, colorless, and flammable liquid that is widely used as a solvent and as a starting material for the production of many industrial chemicals.
Its molecule consists of a planar hexagonal arrangement of six carbon atoms, each bonded to one hydrogen atom and to two neighboring carbon atoms via a double bond. These double bonds are called pi bonds, while the single bonds between the carbon atoms and hydrogen atoms are called sigma bonds.
The stability of the molecule is due to the delocalization of electrons in the six pi bonds, which gives rise to its characteristic aromatic fragrance and stability.
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a polypeptide with a net positive charge at physiologic ph (7.4) most likely contains amino acids with r groups of what typ
A polypeptide with the net positive charge at the physiologic pH of 7.4 most likely contains the amino acids with R groups of the type id Basic R type.
The Basic amino acids possess the net positive charge at the physiological pH of 7.4. The Basic amino acids have the extra amino group in the side of the chain that can release the H⁺ ions into the solution results in the formation of ion of NH₃⁺
The acidic amino acids have the extra amino group in the side of the chain that can release the H⁺ ions into the solution resulting in the formation of COO⁻ ion.
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How many moles of TiCl4 can be produced when 9.00 mol Ti reacts with 4.00 mol Cl2 ?
The number of the moles of TiCl₄ can be produced when 9.00 mol Ti reacts with 4.00 mol Cl₂ is 2 mol.
The balanced chemical equation is as follows :
Ti + 2Cl₂ → TiCl₄
The mole of the Ti = 9 mol
The moles of the Cl₂ = 4 mol
1 mole of the Ti react with the 2 mole of the Cl₂
Mole of the Cl₂ = 2 × 4
= 8 mol
We need mol of the Cl₂ , but we have only 4 mol. Cl₂ is the limiting reagent.
The moles of the TiCl₄ = (1/2) 4
The moles of the TiCl₄ = 2 mol
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Identify each part of this chemical equation which describes the burning of methane and oxygen.
The chemical equation for the burning of methane and oxygen is: CH4 + 2O2 → CO2 + 2H2O.
The green box (A) represents the chemical equation, the blue box (B) represents the reactant methane (CH4), the arrow (C) represents the reaction, the number (D) represents the amount of oxygen (2O2), the purple box (E) represents the products (CO2 and 2H2O).The burning of methane and oxygen is an oxidation-reduction reaction, which is a reaction that involves the transfer of electrons between the atoms, molecules, or ions involved. In this reaction, the methane molecules (CH4) donate electrons to the oxygen molecules (2O2), which results in the formation of carbon dioxide (CO2) molecules and water (2H2O) molecules.
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Identify each part of this chemical equation, which describes the burning of methane and oxygen:
A (the entire green box):
B (the blue box):
C (the arrow):
D (the number):
E (the purple box):
Explain effective nuclear charge ?
Valence electrons are affected by the nuclear protons' attractive positive charge. Due to shielding effect, the effective nuclear energy is always smaller than the total amount of protons in a nucleus.
What is Toppr, the effective nuclear charge?The net charge an electron encounters in an atom with many electrons is known as the effective nuclear charge. Zeff= Z - S can be used to approximate the effective nuclear charge. where S is the amount of shielding electrons and Z is indeed the atomic number.
What factors affect effective nuclear charge?The kind of electron determines the effective nuclear charge. Even in 4s or 5s orbitals, electrons in sh orbitals still spend time directly at the nucleus, where they experience the entire nuclear force.
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How many atoms are in Ca3 PO4 2?
There are 12 atoms of calcium (Ca), 2 atoms of phosphorus (P), and 8 atoms of oxygen in the formula Ca3(PO4)2 (O).
What is calcium phosphate?The elements calcium (Ca), phosphorous (P), and oxygen are combined to form the chemical calcium phosphate (O). Dicalcium phosphate, tricalcium phosphate, and octacalcium phosphate are only a few of its many types. Apatite, a common mineral form of calcium phosphate, is a crucial component of bones and teeth.
How can you determine it?The number of atoms in Calcium Phosphate can be determined by multiplying the coefficient of each element with the number of atoms in the empirical formula, which gives the chemical formula Ca3(PO4)2. Since calcium phosphate has the empirical formula CaPO4, it has 3 calcium (Ca), 1 phosphorus (P), and 4 oxygen (O) atoms.
The number "3" in front of the empirical formula CaPO4 denotes that there are three times as many Ca, P, and O atoms in Ca3(PO4)2 as in the empirical formula. As a result, the following formula can be used to determine how many Ca, P, and O atoms are present in Ca3(PO4)2:
3 calcium (Ca) atoms plus 1 phosphorus (P) atom plus 4 times 2 oxygen (O) atoms equals 12 calcium (Ca) atoms plus 2 phosphorus (P) atoms plus 8 oxygen atoms (O)
As a result, there are 12 atoms of calcium (Ca), 2 atoms of phosphorus (P), and 8 atoms of oxygen in the formula Ca3(PO4)2 (O).
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(a) What is the pH of a 0.6M solution of benzoic acid (Ka 6.5×10 ∧−4) ? Please note that '^' denotes superscript. (b) What is the pH of a solution containing 0.03M benzoic acid (pKa 3.19) and 0.02M Nabenzoate?
The pH of the solution is 3.17. So, the pH of a solution containing 0.03M benzoic acid and 0.02M Nabenzoate is 3.17.
Acidity and basicity of a solution are important physical-chemical properties that determine the behavior of the solution. The pH of a solution is a measure of its acidity and is defined as the negative logarithm of the concentration of hydrogen ions (H+) in the solution.
(a) To determine the pH of a 0.6M solution of benzoic acid, we need to calculate the concentration of H+ ions in the solution. Benzoic acid (C6H5COOH) is a weak acid and therefore dissociates partially in solution to form H+ ions and the corresponding anion (C6H5COO-). The dissociation of benzoic acid can be represented by the following equation:
C6H5COOH <=> H+ + C6H5COO-
The dissociation constant (Ka) of benzoic acid is given as 6.5 × 10^(-4), which indicates the strength of the acid in solution. The concentration of H+ ions in the solution can be calculated using the equation:
[H+] = Ka * [C6H5COOH] / [C6H5COO-]
Using the initial concentration of benzoic acid (0.6M), we can calculate the concentration of H+ ions in the solution:
[H+] = 6.5 × 10^(-4) * 0.6 / (1 - 0.6) = 3.9 × 10^(-4)
Finally, the pH of the solution can be calculated as:
pH = -log[H+] = -log(3.9 × 10^(-4)) = 3.41
So, the pH of a 0.6M solution of benzoic acid is 3.41.
(b) To determine the pH of a solution containing 0.03M benzoic acid (pKa 3.19) and 0.02M Nabenzoate, we need to consider both the weak benzoic acid and the salt (Nabenzoate) in the solution. The weak benzoic acid will dissociate to form H+ ions and the corresponding anion (C6H5COO-), and the salt will dissociate to form Na+ ions and benzoate (C6H5COO-).
The total concentration of H+ ions in the solution can be calculated using the following equation:
[H+] = [C6H5COOH] + [C6H5COO-]
We know the initial concentration of benzoic acid (0.03M) and the initial concentration of Nabenzoate (0.02M), so we can calculate the concentration of H+ ions in the solution as:
[H+] = 0.03 / (1 + (10^(pKa - pH))
Where pH is the unknown pH of the solution. We can iteratively solve for pH by adjusting the [H+] until it equals the calculated value.
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What is the mass number of phosphorus if it has 15 electrons 16 neutrons and the atomic number is 15?
The mass number of phosphorus is found to be 31 based on number of proton and neutron
Is the proton's mass number the same?The atomic number is equal to the number of protons in the atom's nucleus (Z). In a neutral atom, there are precisely as many electrons as protons. The total number of protons and neutrons in the atom's nucleus is equal to the mass number (M) of the atom. The isotopic mass is calculated using the mass number, which is expressed in atomic mass units (u).
Atomic number = number of proton => 15
number of neutron = 16
Mass number of phosphorus = 15 + 16 = 31
In an atomic number, what does A mean?The mass of an atom is determined by adding the numbers of protons and neutrons. It is represented by the letter "A." The number of protons in an atom's nucleus or the number of electrons in an uncharged atom is the atomic number of that atom.
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in the blue box below, provide a real-world example of something that involves green chemistry and sustainability. in your response, explain how chemistry is involved with and supports sustainability as it relates to this issue.
A great example of green chemistry and sustainability is the use of sustainable materials in manufacturing and construction.
Sustainable materials, such as bamboo, cork, and recycled plastic, are used to make furniture, packaging, and building materials. By using sustainable materials, not only are fewer pollutants released into the environment but resources are also preserved as they can be reused and recycled. The use of sustainable materials also requires less energy to create, leading to fewer greenhouse gas emissions.
Additionally, the use of sustainable materials often requires fewer toxic chemicals or compounds, reducing the potential for contamination of the environment. Chemistry is involved in the development and production of sustainable materials, as well as in the development of processes and treatments to ensure that the materials are safe for use. Therefore, chemistry plays an important role in supporting sustainability, as it allows for the production of materials and processes that are safer for the environment.
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The relative atomic mae of element can be calculated by taking the average ma of all the element electron clicked the wrong word
Relative atomic mass (Ar) or atomic weight is defined as the ratio of the average mass of atoms of a chemical element in a particular sample to the atomic mass constant.
What is the parameter for relative atomic mass of elements?One-twelfth of the mass of an atom of carbon-12 is the atomic mass constant, denoted by the symbol mu. The resulting number, which is dimensionless because the ratio's two components are masses, is referred to as a relative value.
Simply add the relative masses of a molecule's component parts to determine its relative mass. If you know the relative atomic masses of the constituent elements, this is easy.
Therefore, The weighted average of a molecule's mass in relation to one-twelfth of the mass of a carbon-12 atom is known as the relative molecular mass (Mr or RMM).
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What can make Fermi doublets difficult to identify?A One peak is larger than the other and overlaps itB The two peaks are always smallC One peak overlaps with sp3 C-H peaksD One peak overlaps with sp C-H peaks
D is the correct answer. One of the peaks overlaps with the sp C-H peaks.
Fermi doublets are small peaks in nuclear magnetic resonance (NMR) spectra caused by nuclei of two adjacent atoms in a coupling. They are frequently difficult to identify due to their small size in comparison to other peaks in the NMR spectrum. Furthermore, one peak in the doublet can overlap with other peaks in the spectrum, particularly sp3 C-H peaks, making the Fermi doublet difficult to distinguish from other peaks. This can lead to the Fermi doublet being missed or misinterpreted in NMR analysis, resulting in errors in peak assignment and molecular structure identification.
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Why is there a decrease in electron affinity going from lithium to sodium?A. There is a stronger nuclear charge, with no additional shielding electrons or number of shells.B. There are fewer spaces in the valence shell in which to place the added electron.C. The nucleus has fewer protons, thus can't attract an extra electron as well.D. Despite the stronger nuclear charge, there are additional shielding electrons and an increase in the number of shells.E. This is the only electron affinity decrease noted on the table and it is just an unexplained anomaly.
Decrease in electron affinity going from lithium to sodium is due to despite the stronger nuclear charge, there are additional shielding electrons and an increase in the number of shells.
Electron affinity is termed as the change in energy (in kJ/mole) of the neutral atom (in the gaseous phase) when an electron will be added to the atom to form a negative ion.
Electron affinity will decreases from down the groups and from right to left across the periods on the modern periodic table because the electrons were placed in a higher energy level which is far from the nucleus, thus a decrease from its pull.
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how many electrons would have to be removed from a coin to leave it with a charge of
[tex]6.3*10^{11}[/tex] electrons would have to be removed from a coin to leave it with charge of [tex]+1*10^{-7}[/tex] C
The molecules are typically ionized by either removing an electron or by adding a proton once they are in the gas phase and enter the mass spectrometer. The removal of an electron is accomplished by blasting the molecules with a high-energy electron beam, typically made up of electrons with a 70 eV energy. Compared to the ionization energy of the molecules being assaulted, this electron beam has a much higher energy. The method is referred to as electron ionization (EI). Since the resultant ion has one unpaired electron, it is a radical ion.
According to the question,
∣q∣ = [tex]1*10^{-7}[/tex] C, we know charge of an electron is [tex]1.6*10^{-19}[/tex] C
∴ number of electrons (n) = [tex]\frac{q}{e}[/tex] = [tex]\frac{1*10^{-7}}{1.6*10^{-19}}[/tex] = [tex]6.3*10^{11}[/tex] (Ans)
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The complete question is:
How many electrons would have to be removed from a coin to leave it with a charge of [tex]+1*10^{-7}[/tex] C ?
A 2. 45 g sample of calcium completely reacts with oxygen to form 3. 43 g of calcium oxide. What is the mass percent composition of calcium in calcium oxide
The mass percent composition of 2.45 g of calcium in 3.43 g of calcium oxide is 28.54%.
To determine the mass percent composition of calcium in calcium oxide, we can calculate the mass of calcium in the calcium oxide sample and express it as a percentage of the total mass of the sample.
First, let's find the mass of calcium that reacted:
mass of calcium = 3.43 g - mass of oxygen = 3.43 g - (2.45 g - mass of calcium) = 0.98 g
Next, let's find the percent of calcium in the calcium oxide:
mass percent of calcium = (mass of calcium / mass of calcium oxide) x 100%
mass percent of calcium = (0.98 g / 3.43 g) x 100%
mass percent of calcium = 28.54%
So the mass percent composition of calcium in calcium oxide is 28.54%.
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which of the following in each pair is likely to be more soluble in carbon tetrachloride, ccl4? hexane (c6h14) or calcium chloride (cacl2): calcium chloride ethanol (ch3ch2oh) or carbon tetrabromide (cbr4): ethanol
Hexane (C6H14) or calcium chloride (CaCl2) are more soluble in carbon tetrachloride, CCl4. Therefore, option A is correct.
What is solubility ?The maximum amount of a substance that will dissolve in a given amount of solvent at a given temperature is defined as solubility. Solubility is a property of a specific solute-solvent combination, and the solubilities of different substances vary greatly.
Because hexane and carbon tetrachloride have similar attractive intermolecular forces, their molecules can mix readily, calcium chloride and hexane dissolves in carbon tetrachloride.
Thus, Hexane (C6H14) or calcium chloride (CaCl2) are more soluble in carbon tetrachloride, CCl4 because it can form London forces, option A is correct.
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which of the following statements correctly describe a net ionic equation? select all that apply. a.The positive and negative ions dissociate from each other.
b.The positive ions are attracted to the partially negative O atom of the H2O.
c.The attraction between the H2O molecules and the ions is stronger than the attraction of the ions for each other.
The following statements correctly describe a net ionic equation:
a. The positive and negative ions dissociate from each other.
c. The attraction between the H2O molecules and the ions is stronger than the attraction of the ions for each other.
define ionic equation ?
An ionic equation is a chemical equation that shows the species in a chemical reaction as ions, rather than as neutral molecules. It is a balanced equation that only includes species that undergo a chemical change during the reaction, and it ignores the species that are present in the reaction but remain unchanged. Ionic equations are used to describe reactions that occur in aqueous solution, where ions are dissolved in water. The ionic equation shows the formation of positive and negative ions from neutral species, the transfer of electrons between ions, and the precipitation or dissolution of ions. It provides a more detailed representation of the reaction than a molecular equation, which only shows the reactants and products as neutral molecules.
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What is the reaction of Cu Oh 2?
In this reaction, copper sulfate (CuSO4) reacts with sodium hydroxide (NaOH) to form copper hydroxide (Cu(OH)2) and sodium sulfate (Na2SO4).
What is an example of a chemical reaction?In a chemical reaction, reactants undergo a chemical reaction and transform into products through a chemical process. For instance, when humans breathe in oxygen, it combines with glucose to create carbon dioxide, water, and energy.
How does a chemical reaction start?When atoms establish or break chemical bonds, chemical processes take place. Reactants are the substances that begin a chemical reaction, while products are the compounds that are created as a result of the reaction.
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What is the molar mass of aluminium?
26.981539 u is the molar mass of aluminium .
What is molar mass ?
Molar mass is the mass of one mole of a substance, defined as its atomic or molecular mass in grams. It is defined as the number of units (atoms, molecules, ions, etc.) in a substance that contains the same number of units as 12 grams of pure carbon-12. The molar mass of a substance is important because it provides a conversion factor between the mass of a substance and the number of moles of a substance, allowing chemical reactions and composition of compounds to be more easily calculated. Molar mass can be calculated by summing the atomic masses of all atoms in a molecule of a substance. For example, the molar mass of water (H2O) is 18.015 g/mol. This means that 1 mole of water weighs 18.015 grams .
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what part of body birds use to attack
Answer:beek
Explanation:
What are 3 characteristics of a scientific theory?
The three characteristics of a scientific theory are : testable, the falsifiable predictions, theories are supported by the observation.
The scientific Theory is the model that can explains the facts about the nature on the basis of the observations, the experimentation and reasoning. The scientific theories have the characteristics as follows :
1) It is testable
2) The falsifiable predictions,
3) The theories are based on facts
4) The theories are based on observation.
5) The theories are modify according to the new observation.
The scientific theory is the theory based on the evolution that holds all the present life descended.
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A gaseous compound has a density of 1. 21g / L at 71. 1 C 1. 6. Assuming ideal behaviorcalculate the molar mass of the gas
Assuming ideal gas behavior, the molar mass of the gas can be calculated using the equation: molar mass = density * volume * molar mass of air.
For this calculation, the density is 1.21 g/L, the volume is 1 L, and the molar mass of air is 28.9 g/mol. This gives a molar mass of 30467922 g/mol for the gas.
The molar mass of a gas can be used to determine its molecular weight and the number of moles of the gas present in a sample. This can be useful for a variety of calculations, such as determining the amount of heat energy released or absorbed when a gas undergoes a chemical reaction.
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how to determine percentage ligands
To determine the percentage of ligands in a coordination compound, you calculate the ratio of the number of ligands to the total number of atoms in the complex and convert that to a percentage.
Ligands are atoms or molecules that bond to a central metal ion in a coordination compound to form a coordination complex.
To determine the percentage of ligands in a coordination compound, you need to first calculate the ratio of the number of ligands to the total number of atoms in the complex.
To do this, you simply count the number of ligands in the compound and divide that number by the total number of atoms in the complex. The resulting ratio is then multiplied by 100 to convert it to a percentage.
For example, if a coordination compound has 4 ligands and 6 total atoms, the percentage of ligands would be calculated as:
(4 ligands / 6 total atoms) x 100 = 67% ligands
So in this case, 67% of the atoms in the compound are ligands.
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What is the relationship between the vapor pressure of a liquid and how well it cools by evaporation?
Answer:Transcript A liquid’s vapor pressure is directly related to the intermolecular forces present between its molecules. The stronger these forces, the lower the rate of evaporation and the lower the vapor pressure.
Explanation:
As vapors are produced more from a liquid there will be more cooling effect as vapors are inversely proportional to the boiling point that means lesser the boiling point better will be the evaporation.
Intermolecular forces are the forces present between the molecules and liquid’s vapor pressure is directly related to the intermolecular forces as well . The stronger these forces, the lower the rate of evaporation and the lower the vapor pressure.
Therefore, the relationship between the vapor pressure of a liquid and how well it cools by evaporation is having direct proportionality.
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what intermolecular forces does allura red have with water
Allura red is a food colouring that is widely found in processed foods and beverages. Hydrogen bonding and dipole-dipole interactions are the intermolecular forces between Allura red and water molecules.
The forces of attraction or repulsion that exist between nearby molecules are referred to as intermolecular forces. These forces are important in influencing the properties of substances like solubility and reactivity of Allura red and water-based solutions.
When a hydrogen atom covalently bound to a highly electronegative atom (such as nitrogen or oxygen) is attracted to an electronegative atom in another molecule, hydrogen bonding occurs. Hydrogen bonds can occur between the hydrogen atoms in water molecules and the nitrogen or oxygen atoms in the dye molecule in the instance of Allura red and water.
The attraction between the positive ends of one molecule and the negative ends of another molecule causes dipole-dipole interactions. The dye molecule in Allura red and water has a permanent dipole moment due to the difference in electronegativity between the carbon and nitrogen atoms, and the water molecule also has a dipole moment. These two dipoles can interact, causing the molecules to attract one another.
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The lattice energy of KBr is -682 kJ/mol. When 3. 406 g of KBr is dissolved in water, 0. 569 kJ of heat is absorbed.
Calculate the enthalpy of hydration of KBr.
Please enter your answer in E-notation to three significant figures
The lattice energy of KBr is -682 kJ/mol. When 3. 406 g of KBr is dissolved in water, 0. 569 kJ of heat is absorbed. The enthalpy of hydration of KBr is -681.431 kJ/mol
The amount of energy generated during the hydration process of one mole of ions is known as the heat of hydration. It is a particular kind of dissolution energy, and water is the solvent.
When 1 mole of an anhydrous substance mixes with the necessary quantity of water molecules to form the hydrate, the shift in heat is known as the enthalpy of a hydrated salt. If the temperatures of salt solutions containing both the anhydrous and hydrated forms are known, the heat of hydration can be calculated.
Lattice energy KBr= -682 kJ/mol
Heat of solution = 0. 569 kJ
enthalpy hydration = lattice energy + heat of solution
enthalpy hydration = -682 kJ/mol + 0. 569 kJ
enthalpy hydration = -681.431 kJ/mol
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For each atom in the table below, write down the subshell from which an electron would have to be removed to make a +1 cation, and the subshell to which an electron would have to be added to make a -1 anion. The first row has been completed for you. atom subshell from which electron removed to form +1 cation subshell to which electron added to form -1 anion H 1s 1s Hg Ne K Х $
The subshell to which an electron would have to be added to make a -1 anion.Hg 4f 5d H 1s 1s X 5s 4p Ne 3s 2p K 4s 3p.
The charge of an electron, which is commonly thought to be negative, is equal to and the opposite of the charge of a proton, which is typically thought to be positive. Because there are more electrons than protons in an ion's total charge, the net charge is not zero. An anion is a negatively charged ion that has more electrons than protons compared to a positively charged ion called a cation. Because they have opposing electric charges, cations and anions are drawn to one another by electrostatic force, which makes it easy to create ionic compounds. Atomic ions are distinct from molecular ions, which are composed of two or more atoms and are also known as multi-atom ions.
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A 32. 4 L gas sample at STP is compressed to a volume of 28. 4 L, and the temperature is increased to 352 K.
What is the new pressure of the gas in atmospheres? Answer: 1. 47atm
How do I solve this?
The Ideal Gas Law (PV = nRT) can be used to address this issue, where P is for pressure, V is for volume, n is for moles, R is for the ideal gas constant, and T is for temperature.
We must maintain a constant number of gas moles in order to determine the new pressure following compression and a temperature change. The equation (P1V1)/T1 = (P2V2)/T2 can be used to show the relationship between the initial and final pressure and volume. Calculate P2, the new pressure, by plugging in the provided numbers. Keep in mind to change the temperature and volume units to Kelvin.
P2 × V2 = n × R × T2
P2 = (n × R × T2) / V2 = (n × R × 352) / 28.4
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What is the empirical and molecular formula for sucralose? The percent composition is 36.25% C, 4.82% H, 26.75% Cl and 32.19% O. The molar mass is 397.63 g/mole.
let's imagine you have 100 g of sucralose
C: 36.25 g No of moles = 36.25/12 = 3.02
H : 4.82 g No of moles = 4.82/1 = 4.82
Cl: 26.75 g No of moles = 26.75/35.5 = 0.75
O: 32.19 g No of moles = 32.19/16 = 2.01
divide all the four mole numbers by the smallest one (0.75)
Empirical formula = C4H6ClO3
Let the molecular formula be (C4H6ClO3)n.
(4x12+6x1+35.5+3x16) x n = 397.63
n = 3
Molecular formula = C12H18Cl3O9
the molecular formula I've searched online is C12H19Cl3O8 so I am also not very sure
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Answer:
flashlight I think I'm sorry if I'm wrong
The speed of light is about 3.0 x 10^8 m/s. Red light has a wavelength of about 6.5 × 10^-7 m. What is its frequency?
The frequency of the red wave with a wavelength of 6.5 × 10-⁷m is 4.62 × 10¹⁴ Hz.
How to calculate frequency?Wavelength refers the length of a single cycle of a wave, as measured by the distance between one peak or trough of a wave and the next.
The wavelength is often designated in physics as λ, and corresponds to the velocity of the wave divided by its frequency.
According to this question, the speed of light is about 3.0 x 10⁸ m/s. Red light has a wavelength of about 6.5 × 10-⁷ m.
6.5 × 10-⁷ = 3 × 10⁸ ÷ f
f = 3 × 10⁸ ÷ 6.5 × 10-⁷
f = 4.62 × 10¹⁴ Hz
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