calculate the ph of a buffer solution made from equal amounts of 0.30 m hydrofluoric acid and 0.70 m sodium fluoride. ka
As per the given question, the pH of the buffer solution made from equal amounts of 0.30 M hydrofluoric acid and 0.70 M sodium fluoride is 3.14.
A buffer solution is formed when a weak acid or base is mixed with its salt or a strong acid or base. Buffer solutions help maintain pH and resist pH changes upon the addition of acid or base.
To calculate the pH of a buffer solution made from equal amounts of 0.30 M hydrofluoric acid and 0.70 M sodium fluoride with a Ka value, follow these steps:
Step 1: Write down the chemical reaction that occurs in the buffer solution.HF + NaF ↔ Na+ + F- + H2O
Step 2: Calculate the concentration of the conjugate base. The concentration of the conjugate base (F-) can be determined by subtracting the concentration of hydrofluoric acid used (0.30 M) from the concentration of sodium fluoride used (0.70 M). [F-]
= [NaF] - [HF][F-]
= 0.70 - 0.30[F-]
= 0.40 M
Step 3: Calculate the Ka of hydrofluoric acid.
Ka = [H+][F-]/[HF]
= x2/0.30x
= 6.76 × 10-4
Step 4: Calculate the pH of the buffer solution.pH = pKa + log([conjugate base]/[weak acid])
pH = -log(6.76 × 10-4) + log(0.40/0.30)
pH = 3.14
Therefore, the pH of the buffer solution made from equal amounts of 0.30 M hydrofluoric acid and 0.70 M sodium fluoride is 3.14.
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a strong lightning bolt transfers about 27.48 c to earth. how many electrons are transferred? the elemental charge is 1.602 × 10−19 c.
A strong lightning bolt that transfers about 27.48 C to Earth corresponds to approximately 1.716 × 10^20 electrons.
To calculate the number of electrons transferred, we need to divide the total charge transferred (27.48 C) by the elemental charge (1.602 × 10^(-19) C). This ratio will give us the number of elementary charges (electrons) involved.
Number of electrons = Total charge transferred / Elemental charge
Number of electrons = 27.48 C / (1.602 × 10^(-19) C)
Using this calculation, we find that the number of electrons transferred is approximately 1.716 × 10^20 electrons.
The elemental charge (1.602 × 10^(-19) C) represents the charge of a single electron. By dividing the total charge transferred by this value, we can determine how many electrons are involved in the process. In this case, the lightning bolt transfers 27.48 C of charge, which corresponds to a large number of electrons (1.716 × 10^20 electrons).
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Multiply the following measurement for wavelength and frequency of a wave
(4.8 x 10 4 ) (1.1 x 106 )
a. 3.2 x 106
b. 1.6 x 102
c. 5.3x 1010
d. 5.28x 1010
Answer : The correct option is, (d) 5.28 × 10¹⁰
Explanation :
As we are given the expression of wavelength and frequency. Now we have to determine the multiply the following measurement for wavelength and frequency of a wave.
The given expression is:
(4.8 × 10⁴) × (1.1 × 10⁶)
= (4.8 × 1.1) × (10⁴ × 10⁶)
= 5.28 × 10¹⁰
Therefore, the multiplication of wavelength and frequency of a wave is 5.28 × 10¹⁰
what percentage of the amino acids were in the favored or allowed regions of the ramachandran plots?
Explanation:
The Ramachandran plot is a way to visualize the allowed regions of protein backbone torsion angles, phi and psi. These angles determine the conformation of the peptide bond and are important for protein structure and function.
Typically, the allowed regions of the Ramachandran plot are divided into three regions: the most favored regions, the additionally allowed regions, and the generously allowed regions.
The percentage of amino acids found in the most favored and additionally allowed regions of the Ramachandran plot depends on the protein structure being analyzed. However, for a well-refined protein structure, the percentage of amino acids in the most favored regions can be around 98%, and the percentage of amino acids in the most favored and additionally allowed regions can be around 99.7%.
which aqueous solution has the slowest evaporation rate? which aqueous solution has the slowest evaporation rate? 0.2 m k2so4 0.1 m bacl2 0.2 m naoh 0.2 m c6h12o6 0.1 m nh4cl
0.1 m BaCl2 has the slowest evaporation rate among the given options due to its stronger intermolecular forces. This is due to the weaker intermolecular forces in the other options, which would evaporate quickly.
The aqueous solution that has the slowest evaporation rate among the given options 0.2 m K2SO4, 0.1 m BaCl2, 0.2 m NaOH, 0.2 m C6H12O6, and 0.1 m NH4Cl is 0.1 m BaCl2. Evaporation is the process of converting a liquid into a gas or vapor. In a solution, the liquid portion is called the solvent, and the component that is dissolved in the solvent is known as the solute. The evaporative behavior of a solution is affected by both the solvent and solute components of the solution. The rate of evaporation is influenced by the strength of the intermolecular forces within the liquid. The stronger the intermolecular forces in a liquid, the slower the rate of evaporation. We can determine the evaporation rate of a solution by analyzing the properties of the solvent and solute. The given options 0.2 m K2SO4, 0.2 m NaOH, 0.2 m C6H12O6, and 0.1 m NH4Cl all have weak intermolecular forces, and they would therefore evaporate quickly. However, 0.1 m BaCl2 has the slowest evaporation rate since it has the strongest intermolecular forces in the given options. As a result, 0.1 m BaCl2 has the slowest evaporation rate compared to other options.So, 0.1 m BaCl2 has the slowest evaporation rate.
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1. At 7 a.m., the science classroom had a temperature of 68°F. By 3 p.m., the temperature had
increased to 75°F. Calculate the rate of temperature change from 7 a.m. to 3 p.m.
how does atmospheric co2 change the rate of ocean acidification, endangering marine life that have shells?
The increasing atmospheric carbon dioxide (CO2) is absorbed by the ocean, and the reaction between CO2 and seawater results in a decrease in pH, causing ocean acidification. Carbon dioxide gas dissolved in seawater forms carbonic acid, which is responsible for the acidity in the water.
This decrease in pH threatens the survival of marine organisms, especially those with shells, such as mollusks and corals.The acidification of the ocean can lead to the dissolution of calcium carbonate, which forms the shells of many marine organisms, causing them to struggle to maintain their shells. Ocean acidification can also impact the way marine organisms live, reproduce, and grow.
The shells of various marine animals, including corals, mollusks, and crustaceans, are made of calcium carbonate. The decrease in pH in seawater lowers the saturation state of calcium carbonate, making it difficult for animals to build and maintain shells and other calcium carbonate structures.
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if a sample of pure x is a mixture of liquid and gas, which point marks the highest possible temperature and pressure of the sample?
If a sample of pure X is a mixture of liquid and gas, then the highest possible temperature and pressure of the sample are marked at the critical point. A critical point is defined as the point at which the liquid and gas states of a substance become indistinguishable from each other.
At this point, the substance exhibits its maximum density, and the heat of vaporization goes to zero. The critical point is also the point where the main answer lies.A sample of pure X that is a mixture of liquid and gas has different boiling and melting points than those of a pure substance. Instead, its boiling and melting points will be a range of temperatures and pressures over which the substance is in a liquid and gas phase. When the temperature and pressure exceed the critical point of the sample, the substance can no longer exist in the gas or liquid state, and it instead exists in the supercritical state. At this state, the substance exhibits properties that are intermediate between those of a liquid and a gas.
The highest possible temperature and pressure of the sample lie at the critical point, which is the point at which the liquid and gas states of a substance become indistinguishable from each other. A sample of pure X that is a mixture of liquid and gas has different boiling and melting points than those of a pure substance.
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please solve this problem. IT IS TOO URGENT ♂️
Answer:
1. Sulphuric acid
2. Car battery acid
3. Washing up liquid
4. Milk of magnesia
5. Metal polish
6. Oven cleaner
Explanation:
Universal paper can determine the pH of a solution. It ranges from dark red (pH 0 - very acidic) to orange/yellow, to green (pH 7 - neutral) to blue, dark blue and purple (pH 14 - very alkaline)
Sulphuric acid has the lowest pH as the universal indicator is red.
The next is car battery acid which is pink - not as acidic as red.
The next is washing up liquid, which is yellow, around pH 3 or 4.
The next is milk of magnesia with light blue, around pH 9 or 10.
Metal polish is dark blue - around pH 11.
Oven cleaner is the darkest, with purple.
1) Which electron configuration represents an atom in an excited state?
A) 2-7
B) 2-6-2
C) 2-8-8-2
D) 2-8-1
Answer:
B) 2-6-2 is in excited state
Two or more than two atoms with different physical or chemical properties can not combine together to form an element. Therefore, electronic configuration represents an atom in an excited state is option B that is 2-6-2.
What is element?Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same. Element combine to form compounds.
The systematic distribution of electrons in the various atomic orbitals is called its electronic configuration. Electronic configuration represents an atom in an excited state is option B that is 2-6-2.
Therefore, electronic configuration represents an atom in an excited state is option B that is 2-6-2.
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How do you separate a fine powder consisting of aluminum soda cans, steel cans, milk jugs, and soda bottles?
Answer:
rate of change
Explanation:
Convert the following:
0.074 km
m.
The answer is 74 m
Yes the answer is 74
:)
that's correct
calculate the free energy change for this reaction at 25 oc. is the reaction spontaneous? c3h8(g) 5 o2(g) 3 co2(g) 4h2o(g)
The Gibbs free energy temperature change (ΔG) ,The value of ΔG for the reaction is -1833.2 kJ/mol. The reaction is spontaneous.
The equation for the combustion of propane is:
C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(g)The values of the enthalpies of formation for each compound are:
C3H8(g) = -104.7 kJ/molO2(g)
= 0 kJ/molCO2(g)
= -393.5 kJ/molH2O(g)
= -241.8 kJ/mol
To determine the ΔH for the reaction, we subtract the sum of the enthalpies of formation of the reactants from the sum of the enthalpies of formation of the products:
ΔH = [3(-393.5) + 4(-241.8)] - [-104.7 + 5(0)]
ΔH = -2043.1 kJ/mol
To determine the ΔS for the reaction, we calculate the change in entropy between the products and reactants. We can use the standard entropy values for each compound spontaneous.
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Xef4 draw the single most stable lewis structure for the molecule. Show the formal charges of all atoms in the correct structure. Include all lone pairs of electrons
The central atom Xe is hybridized and bonded with four Fluorine atoms in XeF4. The single most stable Lewis structure of XeF4 is shown below:
The given molecule XeF4 is a halogen and belongs to the noble gas group. Since the central atom Xenon (Xe) has 8 valence electrons and each fluorine atom has 7 valence electrons, it makes a total of 8 + 4(7) = 36 electrons for the Lewis dot structure. The hybridization of the central atom is sp3d2.The single most stable Lewis structure of XeF4 is shown below. It is shown that all the Fluorine atoms are connected by a single bond with the central atom. The formal charges of each atom in the correct structure is 0. All the atoms have octets except for the central atom, which has two extra electrons. The extra electrons in the central atom act as a lone pair. Therefore, there are a total of 12 lone pair electrons in the molecule.
Thus, the central atom Xenon (Xe) is hybridized and bonded with four Fluorine atoms in XeF4. The single most stable Lewis structure of XeF4 is shown above with formal charges of 0 for all atoms.
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.Before using a solution of NaOH as titrant in a titration experiment, you should standardize the solution. Standardization is the process of titrating a solution prepared from ___________ accurately determine the concentration of the titrant. In particular, NaOH solutions need to be standardized because their concentrations ___________ due to the compound's Choose... Please put an answer in each box
Before using a solution of NaOH as a titrant in a titration experiment, you should standardize the solution. Standardization is the process of titrating a solution prepared from a primary standard to accurately determine the concentration of the titrant. In particular, NaOH solutions need to be standardized because their concentrations can vary over time due to the compound's hygroscopic nature.
Choose:
- Primary Standard: A primary standard is a highly pure compound with a known and stable concentration that can be used to accurately determine the concentration of a titrant.
- Vary over time: The concentration of NaOH solutions can change or fluctuate due to its hygroscopic nature, meaning it readily absorbs moisture from the atmosphere.
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The Henry's Law constant (Kh) for O2 in water at 20 degrees C is 1.28 x 10-3 mol/(L*atm).
How many grams of O2 will dissolve in 2.25 L of H2O that is in contact with pure O2 at 1.00 atm? ............. g O2
How many grams of O2 will dissolve in 2.25 L of H2O that is in contact with air where the partial pressure of O2 is 0.209 atm? .............. g O2
The grams of O2 dissolved in 2.25 L of H2O under pure O2 (1.00 atm) and air (0.209 atm) are approximately 2.88 g and 0.603 g, respectively, according to Henry's Law.
1. According to Henry's Law, the amount of gas dissolved in a liquid is directly proportional to the partial pressure of the gas above the liquid. The equation for Henry's Law is given as:
C = Kh * P
Where C is the concentration of the gas in moles per liter (mol/L), Kh is the Henry's Law constant, and P is the partial pressure of the gas in atmospheres (atm).
For the first case, we are considering pure O2 at a pressure of 1.00 atm. Given that the Henry's Law constant (Kh) for O2 in water is 1.28 x 10^-3 mol/(L*atm), we can calculate the concentration of O2 in the water as follows:
C = Kh * P
C = (1.28 x 10^-3 mol/(L*atm)) * 1.00 atm
C = 1.28 x 10^-3 mol/L
To convert the concentration to grams, we need to multiply it by the molar mass of O2 (32 g/mol) and the volume of water (2.25 L):
Mass of O2 = (1.28 x 10^-3 mol/L) * (32 g/mol) * (2.25 L)
Mass of O2 = 2.88 grams of O2
Therefore, approximately 2.88 grams of O2 will dissolve in 2.25 L of H2O in contact with pure O2 at 1.00 atm.
2. For the second case, the partial pressure of O2 in air is given as 0.209 atm. Using the same equation, we can calculate the concentration of O2 in the water:
C = Kh * P
C = (1.28 x 10^-3 mol/(L*atm)) * 0.209 atm
C = 2.67 x 10^-4 mol/L
To calculate the mass of O2, we multiply the concentration by the molar mass of O2 and the volume of water:
Mass of O2 = (2.67 x 10^-4 mol/L) * (32 g/mol) * (2.25 L)
Mass of O2 = 0.603 grams of O2
Therefore, approximately 0.603 grams of O2 will dissolve in 2.25 L of H2O in contact with air, where the partial pressure of O2 is 0.209 atm.
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How is a mixture different from a compound? 1. Particles of a mixture are combined chem2. Components of a mixture can be sepa- rated by physical means. 3. Composition of a mixture may be con- stant. 4. Components of a mixture can only be separated chemically.
Answer:
2. Components of a mixture can be separated by physical means
Explanation:
The Compound is defined as the substances that are chemically combined while mixtures are the substances in which two or more compounds are physically combined together.
The difference between compound and mixture from the given options is that mixture can be separated physically unlike compounds.
In a mixture, two or more compounds can be mixed in any proportion that can be separated by physical means. For example: salt from seawater (mixture) can be separated evaporation and nails from the mixture of sand and iron can be separated through magnetic separation.
Hence, the correct answer is "Components of a mixture can be separated by physical means".
why is it necessary to assign organic chemistry exclusively to the study of carbon compounds?
Answer:
the significant of carbon.A compound found mainly in living things is known as an organic compound make up the cells and other structures of organism and carry out life processes.Carbon is the main element in organic compound,so carbon is essential to life on earth
It is necessary to assign organic chemistry exclusively to the study of carbon compounds due to the valency and configuration of the carbon atom.
Carbon is the 6th most abundant element in the cosmos and it can be seen in organic compounds on which life functions exist. Carbon is an element that can be located in group 14 and period 2 on the periodic table.
Carbon comprises 2 electrons in its first shell and 4 in its second shell, and it is because of this configuration that it is such an exclusive element.
Organic compounds are typically formed using the octet rule, which states that atoms achieve stability by acquiring or shedding electrons to reach the optimal amount of eight electrons in their outer shell. They accomplish this by forming ionic and covalent bonds.
An atom donates electrons with at least one other atom while creating a covalent bond, enabling both atoms to attain a more stable configuration.
Carbon, with just 4 electrons in its outer shell, is capable to donate and receive electrons, and it can create 4 covalent bonds at the same time.
Therefore, from the above explanation, we can conclude that it is necessary to assign organic chemistry exclusively to the study of carbon compounds due to the valency and configuration of the carbon atom.
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describe how doppler is used to distnguish the presence ir absense if flow in a vessel from nonvasuclar structures
Doppler ultrasound is a noninvasive medical examination that uses high-frequency sound waves to generate images of the body's internal organs and structures. It can identify areas of poor blood flow, blockages, and other problems in blood vessels.
It is also utilized to distinguish between the presence or absence of flow in a vessel from nonvascular structures by analyzing the velocity and direction of blood flow in the vessels To detect the presence of flow in a vessel, the Doppler signal should be visible on the spectral display, which shows the velocity and direction of blood flow.
If the signal is not present, the vessel is assumed to be occluded or nonpatent, and flow is either absent or reversed. The absence of a signal in a nonvascular structure indicates that no flow is present since these structures lack vascularization, such as bone or solid organs. Therefore, Doppler ultrasound can be used to identify vascular and nonvascular structures and differentiate between them based on the presence or absence of flow.
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iron is an example of
Answer:
Iron is made up of ferromagnetic material.
Explanation:
.Compare and contrast Thomson’s plum pudding atomic model with Rutherford’s nuclear atomic model.
Thomson's plum pudding atomic model and Rutherford's nuclear atomic model are two historical models proposed to describe the structure of the atom.
The key difference between these models lies in their understanding of the distribution of positive and negative charges within the atom. Thomson's model suggested that the atom was composed of a positively charged "pudding" with negatively charged electrons embedded throughout. In contrast, Rutherford's model proposed that the atom had a dense, positively charged nucleus at the center, surrounded by mostly empty space with electrons orbiting around it.
Thomson's plum pudding model, proposed in the late 19th century, envisioned the atom as a uniform, positively charged sphere with electrons scattered throughout like plums in a pudding. According to this model, the positive and negative charges were uniformly distributed throughout the atom. It explained the existence of negatively charged electrons but did not provide any insight into the presence of a dense, positively charged nucleus.
Rutherford's nuclear model, proposed in the early 20th century, came as a result of the famous gold foil experiment. Rutherford discovered that most of the alpha particles passed through the gold foil undeflected, while a few were deflected at large angles. From these observations, he concluded that the atom must have a concentrated positive charge at its center, which he called the nucleus. The electrons were then considered to be in orbit around the nucleus. This model explained the results of the gold foil experiment and introduced the concept of a small, dense, positively charged nucleus, which accounted for the deflection of alpha particles.
Thomson's plum pudding model proposed a uniform distribution of positive and negative charges throughout the atom, while Rutherford's nuclear model introduced the idea of a dense, positively charged nucleus at the center of the atom, with electrons orbiting around it. Rutherford's model provided a more accurate description of the atom's structure and paved the way for further advancements in atomic theory.
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3. Which can be decomposed by chemical change?
1) sodium
02) water
3) iron
O4) germanium
How many moles are in 100. mg of c26h23n7o2
Answer:
4.1143797572516005
Explanation:
I think this is what you're asking, I'm not sure
The number of grams in a mole is determined by the substance. To calculate it, multiply the atomic or molecular mass of your substance by the number of moles you have.
Moles are in 100. mg of C26 H23 N7 O2 = 2.15 × [tex]$10^{-4}[/tex] mole
How many grams in a mole?The number of grams in a mole is determined by the substance. To calculate it, multiply the atomic or molecular mass of your substance by the number of moles you have. The atomic or molecular mass will be the same as the weight for one mole. A substance's molar mass is the mass in grams of one mole of the compound. A mole is the number of entities present in a substance, such as atoms, molecules, or ions. A mole of any substance is defined as 6.022 x molecules.Atoms and molecules are so small, the mole concept enables us to count them by weighing macroscopically small amounts of matter.Therefore,
mole concept establishes a standard for determining reaction stoichiometry.
molecular weight = 465.5 g
100. mg = .1 g.
moles are in 100. mg of C26 H23 N7 O2 = 2.15 × [tex]$10^{-4}[/tex] mole
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What is true about protons within an atom?
most bottled water in the united states does not contain fluoride. group of answer choices true false
The statement that most bottled water in the United States does not contain fluoride is true. Fluoride is a chemical that is added to water to prevent tooth decay.
It is naturally present in some water sources, while it must be added to others. However, most bottled water in the United States does not contain fluoride. Many bottled water companies do not add fluoride to their products because they assume that people will get fluoride from other sources, such as toothpaste or tap water. Moreover, some bottled water brands come from natural springs that have fluoride levels that are lower than what is required for optimal dental health. In addition, not all bottled water products are created equal.
According to the FDA, bottled water that is sold in the United States must meet certain quality standards, but the regulations do not require that fluoride be added to the water. As a result, some bottled water brands do contain fluoride, but consumers must read the label to know for sure. The good news is that people who do not drink fluoridated water can still get fluoride from other sources. For example, they can use toothpaste that contains fluoride, eat foods that are high in fluoride, or take fluoride supplements. Overall, the statement that most bottled water in the United States does not contain fluoride is true. Consumers who want to know whether a particular brand of bottled water contains fluoride should read the label or contact the manufacturer for more information.
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what is the ph of a solution made by diluting 10.0 ml of a 0.214 m solution of nitric acid, hno3(aq), to a volume of 200.0 ml? what is the ph of a solution made by diluting 10.0 ml of a 0.214 m solution of nitric acid, hno3(aq), to a volume of 200.0 ml? 0.670 1.971 12.029 13.330
the pH of the diluted solution is 1.971.
To calculate the pH of the solution, we need to determine the concentration of hydrogen ions ([H+]) in the diluted solution.
Given:
Volume of concentrated solution (V1) = 10.0 ml = 0.01 L
Concentration of concentrated solution (C1) = 0.214 M
Volume of diluted solution (V2) = 200.0 ml = 0.2 L
Using the dilution formula, we can calculate the concentration of the diluted solution (C2):
C1V1 = C2V2
(0.214 M)(0.01 L) = C2(0.2 L)
0.00214 mol = C2(0.2 L)
C2 = 0.00214 mol / 0.2 L
C2 = 0.0107 M
Since nitric acid (HNO3) is a strong acid, it completely dissociates in water, resulting in an equal concentration of hydrogen ions ([H+]). Therefore, [H+] = 0.0107 M.
To calculate the pH, we can use the formula:
pH = -log[H+]
pH = -log(0.0107)
pH = 1.971
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Suppose you are studying the kinetics of the iodine-catalyzed decomposition of hydrogen peroxide. 2H2O2⟶2H2O+O2 If you determine the initial rate is 7.50×10−4M/s when [H2O2]=0.455M and [KI]=0.280M, what is the rate constant? Assume that the order of both reactants is 1 .
The rate constant for the iodine-catalyzed decomposition of hydrogen peroxide is 5.43 M^(-2)·s^(-1).
The rate constant for the iodine-catalyzed decomposition of hydrogen peroxide can be determined using the initial rate and the concentrations of the reactants. Given that the initial rate is 7.50×10^(-4) M/s, [H2O2] = 0.455 M, and [KI] = 0.280 M, and assuming the order of both reactants is 1, we can use the rate equation: rate = k[H2O2][KI] to find the rate constant. The rate constant is calculated by dividing the initial rate by the product of the concentrations of the reactants. Substituting the given values, we get k = 7.50×10^(-4) M/s / (0.455 M * 0.280 M) = 5.43 M^(-2)·s^(-1).
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what are independant variables
Answer:
a variable (often denoted by x ) whose variation does not depend on that of another.
Explanation:
The temperature of a sample of matter is a measure of the *
1. total kinetic energy of its particles
2.average potential energy of
its particles
3.average kinetic energy of its
particles
4.total potential energy of its particles
Explanation:
3.average kinetic energy of its
particles
what is the ground-state electron configuration of the sulfide ion s2− ?
The ground-state electron configuration of sulfide ion S²⁻ is 1s² 2s² 2p⁶ 3s² 3p⁶.
Sulfide ion S²⁻ consists of 16 electrons. A ground-state electron configuration refers to the lowest energy level configuration, and it can be determined by arranging electrons into various orbitals in the increasing order of their principal quantum numbers. For finding the electron configuration of an atom or ion, we use the following rules:
1. Aufbau principle- The Aufbau principle states that electrons will first occupy the lowest energy level orbitals before occupying the higher ones.
2. Pauli Exclusion principle- Pauli exclusion principle states that no two electrons can have the same set of four quantum numbers.
3. Hund’s rule- Hund’s rule states that for orbitals with the same energy, each orbital is filled with an electron before any orbital is doubly occupied.
For finding the electron configuration of the S²⁻ ion, we first need to identify the number of electrons that it contains. Sulfur (S) has an atomic number of 16. It has a total of 16 electrons in its neutral state. However, the S²⁻ ion has an additional two electrons, which means it has a total of 16+2 = 18 electrons. Now we can fill these electrons into various orbitals in the increasing order of their principal quantum numbers. The electron configuration is given below:1s² 2s² 2p⁶ 3s² 3p⁶
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