If 2.9×10?2 atm of IBr is placed in a 2.0- L container, what is the partial pressure of I 2 after equilibrium is reached?
For the equilibrium
2IBr(g)?I2(g)+Br2(g) Kp=8.5×10?3 at 150 ?
Answers
The partial pressure of I2 at equilibrium is approximately 0.208 atm.
If 2.9×10-2 atm of IBr is placed in a 2.0-L container, the partial pressure of I2 after equilibrium is reached can be calculated by using the Kp value of the equation provided.
The equilibrium constant of a reaction, Kp, is the ratio of the products' partial pressures to the reactants' partial pressures, each raised to the power of its stoichiometric coefficient in the balanced equation. Hence, the expression for Kp can be calculated as:
Kp = PI2^2 / PBr2 = 8.5×10-3 atm at 150°C
Where PI2, PBr2 are the partial pressures of I2 and Br2, respectively.
Now, let's calculate the partial pressure of I2 at equilibrium. We know that the number of moles of IBr = P x V / R x T, where P is the pressure, V is the volume, R is the gas constant, and T is the temperature.
Let's solve this by first calculating the number of moles of IBr. Since PV = nRT, we can solve for n:
2.9×10-2 atm × 2.0 L / (0.0821 L atm K-1 mol-1 × 423 K) = 0.000664 mol IBr (approx)
The reaction stoichiometry shows that 2 moles of IBr yield 1 mole of I2, so we expect the equilibrium concentration of I2 to be half that of IBr:
0.5 × 0.000664 mol = 0.000332 mol
The total pressure of the system at equilibrium can be calculated using the ideal gas law:
Ptotal = ntotal × RT / V
where ntotal is the total number of moles of gas (IBr, I2, and Br2) at equilibrium. Since we know the number of moles of IBr, we can calculate the total number of moles as:
ntotal = 2 × 0.000664 mol = 0.00133 mol
Now we can use this and solve for the partial pressure of I2:
Ptotal = PI2 + PBr2 + PIBr => PI2 = Ptotal - PBr2 - PIBr
=> PI2 = 2.9×10-2 atm - 2x - x where x is the pressure of I2 in atm
PI2 = 2.9×10-2 atm - 3x (Approx)
Kp = PI2^2 / PBr2
=> PI2 = √(Kp × PBr2) => PI2 = √(8.5×10-3 atm × 2x atm)
= 0.208 atm (approx)
Hence, the partial pressure of I2 at equilibrium is approximately 0.208 atm.
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Related Questions
What is the difference between ionic and covalent bonds?
Ionic bonds are when atoms share the same electron(s); covalent bonds are when atoms are attracted electrostatically due to positive and negative charges.
Covalent bonds are when atoms are attracted electrostatically due to positive and negative charges; ionic bonds are when atoms share the same electron(s).
Ionic bonds are when atoms are attracted electrostatically due to positive and negative charges; covalent bonds are when atoms share the same electron(s).
Ionic bonds are when atoms are attracted electrostatically due to like charges; covalent bonds are when atoms share the same nucleus.
Answers
The correct option is: (c) Ionic bonds are when atoms are attracted electrostatically due to positive and negative charges; covalent bonds are when atoms share the same electron(s).
Ionic and covalent bonds are types of chemical bonds that can form between atoms. The main difference between ionic and covalent bonds is how they form and the nature of their interactions.
Ionic bonds are formed when one or more electrons are transferred from one atom to another atom. In ionic bonding, electrons from a metal atom are transferred to a nonmetal atom to create ions of opposite charges, which then attract each other through electrostatic forces. Covalent bonds, on the other hand, are formed when atoms share one or more pairs of electrons to achieve a stable electron configuration. In covalent bonding, atoms are attracted electrostatically due to positive and negative charges.
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Question 7 of 25
What is an energy level?
A. The total energy possessed by all the electrons of an atom
B. The energy contained within the nucleus of an atom
C. The energy required to remove an electron from its nucleus
D. The energy possessed by an electron at a set distance from the
nucleus
SUBMIT
Answers
Answer:
d)the energy possessed by an electron at a set distance from the nucleus
what element is [Kr]5s24d105p2
Answers
[Kr]5s²4d10⁵p² represents iodine element. The fundamental components of matter are thought to be the elements.
What is element?A material is considered an element if it cannot be divided into two or even more simpler compounds by any kind of chemical process, including the use of light or warmth. For instance, when melting the chunk of gold, it nevertheless melts but remains as the precious metal element.
The fundamental components of matter are thought to be the elements. There are currently 118 known elements, 94 of which are found in nature while the remaining 24 are created artificially. [Kr]5s²4d10⁵p² represents iodine element.
Therefore, [Kr]5s²4d10⁵p² represents iodine element.
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10. How many grams of carbon dioxide are produced when 2. 50 g of sodium hydrogen carbonate reacts
with excess citric acid according to the equation:
3 NaHCO3 + H3 C6H5O7 → Na3 C6H5O7 + 3 CO2 + 3H₂O?
Answers
What is the distance of a soccer player who runs the length of the pitch (20m)and then returns to the middle?
Answers
The distance of a soccer player who runs the length of the pitch (20m) and then returns to the middle is 30m.
Distance and displacement are two quantities that seem to mean the same but are distinctly different with different meanings and definitions. Distance is the measure of “how much ground an object has covered during its motion” while displacement refers to the measure of “how far out of place is an object.” In this article, let us understand the difference between distance and displacement.
Distance is the total movement of an object without any regard to direction. We can define distance as to how much ground an object has covered despite its starting or ending point.
In the question, The length of full pitch is 20m. So to cover full pitch one time the distance would be 20m and then the half pitch, the distance would be 10m. Total distance would be 30m.
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what is the molar solubility of lead(ii) iodide in pure water? ksp = 1.1 × 10–8
Answers
The molar solubility of lead(ii) iodide in pure water can be calculated using the given Ksp value of \(1.1 * 10^{-8}\).
The Ksp expression for lead(ii) iodide is \(PbI_{2}(s) = Pb_{2}+(aq) + 2I^{-}(aq)\), and the Ksp value represents the equilibrium constant for this reaction.
Using this Ksp value, we can set up an ice table and solve for the molar solubility of PbI2.
Using the formula \(Ksp = [Pb^{2+}][I^{-}]^2\),
and assuming x mol/L of\(PbI_{2}\)dissolves in water, we can write:
\(Ksp = (x)(2x)^2\)
\(1.1 * 10^{-8} = 4x^3\)
\(x = 4.22 * 10^{-3}mol/L\)
Therefore, the molar solubility of lead(ii) iodide in pure water is \(4.22 * 10^{-3} mol/L\).
The molar solubility of lead(ii) iodide in pure water can be determined using the Ksp value of \(1.1 * 10^{-8}\) and solving for x in the Ksp expression using an ice table. The calculated molar solubility is \(4.22 * 10^{-3} mol/L\).
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A sample has an atomic number is 18 and atomic mass 33, what is the number of neutrons?
Answers
Answer:
15 neutrons
Explanation:
the atomic mass shows the amount of neutrons and protons added together
the atomic number shows us how many protons they are (you can also find out how many electrons a element has by looking at its atomic number as it will have the same amount of protons)
so to find the amount of neutrons the sample has you have you subtract the atomic number which is the amount of protons from the mass number which tells us the amount of neutrons and protons added together but we only need the neutrons that's why we subtract it
33-18=15
What is the molecular mass of NaCl *
22.990 g/mol
58.44 g/mol
35.45 g/mol
227.425 g/mol
Please help me
Answers
Which statement accurately describes the atoms of a specific element?
Answers
The atoms of a specific element is A zinc Zn atom containing 30 protons inside the nucleus and 30 electrons outside the nucleus.
Each element's atoms contain a characteristic number of protons and electrons. The number of protons determines the atomic number of an element and is used to distinguish one element from another. All atoms of a given element are identical in that they have the same number of protons, which are one of the building blocks of an atom.
Atoms of different elements have different numbers of protons, so they are also different from atoms of all other elements. Atoms can only have electrons and protons, but neutrons are the correct description for an element's atom. There are two properties that can be used to identify an element. Atomic number or number of protons in an atom. The number of neutrons and the number of electrons are often the same as the number of protons.
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Where do you think the atoms for plant growth come from?
Answers
Answer:
the mass of a tree is primary carbon
Explanation:
the the carbon comes from carbon dioxide during photosynthesis
Answer:
Plants get all the carbon, hydrogen, and oxygen they need from carbon dioxide and water, which they use to build carbohydrates during photosynthesis. To build other kinds of molecules they also need elements like nitrogen, phosphorous, and sulfur. Plants get these as well as other elements from the soil.
Explanation:
what is preferential discharge of ions
Answers
Answer:
During the process of electrolysis, ions that are formed will get discharged to reform neutral atoms at the state of electrons, whereas the preferential meaning which in case one or more kind of cations and anions in the electrolyte, the one with the higher concentration or at a lower position activity will get discharged first.
10. If 3.5 kJ of energy are added to a 28.2 g sample of iron at 20°C, what
is the final temperature of the iron in kelvins? The specific heat of iron
is 0.449 J(g•K).
Answers
Answer:
569K
Explanation:
Q = 3.5kJ = 3500J
mass = 28.2g
∅1 = 20°C = 20 + 273 = 293K
∅2 = x
c = 0.449
Q = mc∆∅
3500 = 28.2×0.449×∆∅
3500 = 12.6618×∆∅
∆∅ = 3500/12.6618
∆∅ = 276.4220
∅2 - ∅1 = 276.4220
∅2 = 276.4220 + ∅1
∅2 = 276.4220 + 293
∅2 = 569.4220K
∅2 = 569K
When the temperature is increased, there is the increase in thermal energy of the system. The final temperature of the iron in kelvins is 570 K.
What is energy?The energy is the ability to do work.
Given is the energy Q = 3.5 kJ = 3500 J, mass of sample m = 28.2 g, specific heat of iron Cp = 0.449 J(g•K).
The initial temperature in kelvins is T1 = 20°C = 20 + 273 = 293K
The heat is related to the temperature difference as
Q = m c ∆T
Substitute the values into the expression,
3500 = 28.2 × 0.449 × ∆T
3500 = 12.6618 × (T2 -T1)
T2 - T1 = 276.4220
T2 = 276.4220 K +293 K
T2 = 569.4220K
The temperature of the iron is approximately 570 K.
Thus, the final temperature of the iron in kelvins is 570K.
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Super find 40 gauge copper wire is a diameter of only 0.080 mm and Waze only 44.5 g/km. Suppose a spool of 40 gauge wire weighs 471. g Les after some wire is pulled off to wind a magnet. How could you calculate how much wire is used. Set the math up. Do not do any of it just leave your answer as a “math expression”Also be sure your answer includes all correct unit symbols
Answers
Answer:
10.58km
Explanations:The formula needed to calculate the amount of wire used is expressed as:
\(\text{length of wire used=}\frac{W}{w_g}\)W is the weight of wire used to wind a magnet
wg is the weight of wire per km
Given the following parameters:
\(\begin{gathered} W=471g \\ w_g=44.5\text{g/km} \end{gathered}\)Substitute the given parameters into the formula to have:
\(\begin{gathered} \text{Length of wire used=}\frac{471\cancel{g}}{44.5\cancel{g}km^{-1}} \\ \text{Length of wire used}=\frac{471}{44.5}km \\ \text{Length of wire used=}10.58\operatorname{km} \end{gathered}\)Hence the length of wire used is 10.58km
Which amino acids can form hydrogen bonds with water?
Answers
The amino acids that can form hydrogen bonds with water are those with polar or charged side chains, which are capable of forming hydrogen bonds with water molecules.
Amino acids with polar or charged side chains are the ones that have the capability of creating hydrogen bonds with water molecules. These amino acids are the only ones that can make hydrogen bonds with water. Serine, threonine, asparagine, glutamine, tyrosine, cysteine, methionine, histidine, lysine, arginine, and aspartic acid (aspartate) and glutamic acid are some of the amino acids that fall into this category (glutamate).
These amino acids have the ability to form hydrogen bonds with water molecules, which contributes to the general soluble nature of proteins as well as their structural integrity.
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What is waste good for?
energy for decomposers
being stinky
food chain
Answers
What is the meaning of length?
Answers
the most unique property of carbon is its ability to group of answer choices bond to carbon. bond to nitrogen. bond to oxygen. form four bonds.
Answers
the most unique property of carbon is its ability to form four bonds.
Carbon is unique in its ability to form four covalent bonds with other atoms, including other carbon atoms. This ability allows for the formation of long chains, rings, and complex structures, making carbon the basis for all life on Earth. Carbon can also form double or triple bonds, allowing for even more diversity in the types of molecules that can be created. While nitrogen and oxygen can also form multiple bonds, carbon's ability to form four bonds is what sets it apart.
Carbon has four valence electrons, which allows it to form four covalent bonds with other atoms. This property enables carbon to create a wide variety of complex molecules, including forming long chains and rings by bonding to other carbon atoms. This versatility is crucial for the formation of various organic compounds and is a key reason why carbon is the backbone of life on Earth.
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A solution of NaCl was prepared in the following manner: 0.0842 g of NaCl is massed out on an analytical balance. The solid is transferred to a 25.00 mL volumetric flask. Deionized water is added to the flask such that the bottom of the meniscus is at the line. A 1.00 mL aliquot of the stock solution is transferred to a 50.00 mL volumetric flask using a volumetric pipet and diluted to volume. 6. Calculate the concentration of NaCl in the resulting solution in mg/L NaCl. (answer = 67.4 mg/L) 7. Calculate the concentration of NaCl in the resulting solution using propagation of error through the calculation. Use the manufacturer's tolerance values as the absolute error. The tolerances can be found in Chapter 2 of the Harris text. Assume a Class 1 balance and Class A glassware. Treat the tolerances as random error. (answer = 67.4+0.4 mg/L) 8. Identify 2 possible sources of random (indeterminate) error. Identify 2 possible sourses of systematic (determinate) error.
Answers
Two possible sources of systematic (determinate) error in the experiment are; Incorrect calibration of volumetric glasswareIncorrect mass of NaCl
To calculate the concentration of NaCl in the resulting solution in mg/L NaCl, we can use the formula; Concentration (mg/L) = (Mass of solute ÷ Volume of solution in L) × 1000 g / 1 mg NaCl is present in the stock solution of 25 mL. So, the mass of NaCl in the solution would be;0.0842 g ÷ 25 mL = 0.00337 g/mL. Now, in the resulting solution, a 1.00 mL aliquot of the stock solution is transferred to a 50.00 mL volumetric flask and diluted to volume. Therefore, the volume of the resulting solution is 50.00 mL. We will substitute these values in the formula, Concentration (mg/L) = (0.00337 g/mL ÷ 50 mL) × 1000 g / 1 mg concentration (mg/L) = 67.4 mg/L. Therefore, the concentration of NaCl in the resulting solution in mg/L NaCl is 67.4 mg/L.7. Concentration = 67.4 mg/LTolerance = 4.28 mg/LTotal concentration = 67.4 + 4.28 mg/L = 71.68 mg/LWe round off this value to one decimal place; Total concentration = 71.7 mg/LTherefore, the concentration of NaCl in the resulting solution using propagation of error through the calculation is 67.4+0.4 mg/L.8. Two possible sources of random (indeterminate) error in the experiment are; Errors in temperature measurement. Errors in measurement of water volume. Two possible sources of systematic (determinate) error in the experiment are; Incorrect calibration of volumetric glasswareIncorrect mass of NaCl.
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Jose and Richie were responsible for recording the class weather data each day in March. This is how the wind sock looked when they went out this morning. What direction is the wind blowing from? Responses north
Answers
Answer:
answer is a
Explanation:
I just did that question
what are neutral salts
Answers
Answer:
Salts that produce acidic solutions are acid salts. Neutral salts are those salts that are neither acidic nor basic. Zwitterions contain an anionic and a cationic centre in the same molecule, but are not considered to be salts. Examples of zwitterions include amino acids, many metabolites, peptides, and proteins.
Explanation:
What is the molar ratio between carbon dioxide to water?
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
Answers
Answer:
8:10
Explanation:
The coefficients of a balanced chemical equation give us the mole ratios. The coefficient of carbon dioxide here is 8 and water is 10.
using a spectrophotometer, a student measures the absorbance of four solutions of cuso4 at a given wavelength. the collected data is given in the table above. which of the following is the most likely explanation for the discrepant data in trial 4 ? responses the solution was at a lower temperature than the solutions in the other trials. the solution was at a lower temperature than the solutions in the other trials. the measurement was made using a different spectrophotometer that uses a cell with a longer path length. the measurement was made using a different spectrophotometer that uses a cell with a longer path length. the solution was saturated and the flow of light through the solution was restricted. the solution was saturated and the flow of light through the solution was restricted. the concentration of the solution was actually lower than 0.150m .
Answers
The most likely explanation for the discrepant data in trial 4 is that the solution was saturated, and the flow of light through the solution was restricted. This would cause an inaccurate absorbance reading when using a spectrophotometer.
Based on the information given, the most likely explanation for the discrepant data in trial 4 is that the solution was saturated and the flow of light through the solution was restricted. This could have caused the absorbance reading to be higher than expected, leading to the discrepancy in the data. Other factors such as temperature and spectrophotometer differences are less likely to cause such a significant discrepancy in the data.
The most likely explanation for the discrepant data in trial 4 is that the solution was saturated, and the flow of light through the solution was restricted. This would cause an inaccurate absorbance reading when using a spectrophotometer.
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What are the correct coefficients when this chemical equation is
balanced? *
P4 + 02 P2O5
Answers
Answer:
What are the correct coefficients when this chemical equation is
balanced? *
P4 + 02 P2O5
1, 5, 2Explanation:
For this reaction we have a combination reaction. Balancing Strategies: This combination reaction is a lot easier to balance and if you can get an even number of oxygen atoms on the reactants side of the equation.
which isotopes would you expect to be stable?
Answers
Isotopes of elements having atomic number less than 20 and with a neutron to proton ratio of close to 1 are more likely to be stable.
What is an isotope?
Isotopes are two or more atom kinds that share the same atomic number (protons in the nucleus), placement in the periodic table, and chemical element but have distinct nucleon numbers (mass numbers) as a result of possessing a different quantities of neutrons in their nuclei. Although the chemical properties of each isotope of a given element are nearly identical, they differ in their atomic weights and physical characteristics. The atomic number of an atom is the sum of the number of protons in the nucleus and the number of electrons in a neutral (non-ionized) atom. The mass number of an atom is determined by the quantity of nucleons—both protons and neutrons—in its nucleus, and it varies for each isotope of a given element.
Isotopes of elements having atomic number less than 20 and with a neutron to proton ratio of close to 1 are more likely to be stable.
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Complete and balance the molecular equation, including the phases, for the reaction of aqueous potassium sulfate, k2so4 , and aqueous strontium iodide, sri2.
Answers
The complete and balanced molecular equation is-
K₂SO₄(aq) + SrI₂(aq) → KI(aq)+ SrSO₄(s)
Both sides of the reaction must have an equal amount of atoms in each element to balance the equation.
What is a balanced chemical reaction?A balanced chemical reaction is one in which both the reactant and product sides of the reaction include an equal number of atoms from each of the constituent components. For the chemical equation to adhere to the Law of the conservation of mass, it must be balanced.An equation that has the same number of each type of atom on both sides of the arrow is said to represent a balanced chemical reaction. A chemical reaction is represented symbolically in writing by a chemical equation. The chemical(s) used as the reactant(s) are listed on the left and the chemical(s) used as the product(s) are listed on the right. A chemical reaction requires an equal number of atoms in the reactants and products because, according to the rule of conservation of mass, atoms cannot be generated or destroyed throughout the process.How to balance a molecular chemical equation?First of all, identify the most complicated or complex substances.If possible, start with that material and pick an element or elements that are present in only one reactant and one product. To get the same number of atoms of this element(s) on both sides, adjust the coefficients.If polyatomic ions are present on both sides of the chemical equation, they should be balanced as a whole.The remaining atoms are then balanced, typically ending with the substance that is the least complicated and, if necessary, employing fractional coefficients. In order to get whole numbers for the coefficients if a fractional coefficient was used, multiply both sides of the equation by the denominator.To learn more about Molecular equation click on-
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Balanced molecular equation is :
K₂SO₄(aq) + SrI₂(aq) → KI(aq)+ SrSO₄(s)
What is Balanced equation?
If both the reactants and the products of a chemical reaction have the same number of atoms and total charge, the equation for the reaction is said to be balanced. In other words, the mass and charge balances on both sides of the reaction are equal.The equation must be balanced so that each type of atom appears in equal amounts on both the left and right sides of the arrow. This is accomplished by altering the compounds' coefficients (numbers placed in front of compound formulas).In an imbalanced chemical equation, the reactants and products of a reaction are provided, but the amounts required to satisfy the conservation of mass are not given.Learn more about the balanced equation with the help of the given link:
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Why is the temperature of the liquid in the flask on the previous page measured when the liquid in the thermometer has stopped rising?.
Answers
The temperature of the liquid in the flask on the previous page measured when the liquid in the thermometer has stopped rising to measure confirmed or fixed temperature.
When the liquid in the flask is heated, its temperature rises, and when a thermometer is inserted into the flask to gauge the liquid's temperature, the liquid within the thermometer also begins to warm up.
The temperature of the liquid rises as a result of heat being transferred from a high temperature to a low temperature until the temperatures are equal. Therefore, when the liquid stops rising, both are at the same temperature, and this is how the liquid in the flask is being measured.
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Calculate the Volume of the cube using length measurements
Answers
Answer:
V=a3
Explanation:
sorry no explantion, but answer
If a tomato is a fruit, is ketchup a smoothie?
Answers
Answer:
Ketchup is NOT a Smoothie
Explanation:
because tomato is a fruit does not mean that a blended tomato concoction like ketchup is automatically considered a smoothie.
what is a mixture of elements and compounds
Answers
The substance in the image above would be classified as a mixture of elements (option E).
What is a compound and mixture?A compound is a substance formed by chemical bonding of two or more elements in definite proportions by weight.
On the other hand, a mixture is made when two or more substances are combined, but they are not combined chemically.
According to this question, an image is shown with two different substances or elements as distinguished by coloration (white and purple). These elements are combined but not chemically bonded, hence, is a mixture.
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I’m screwed omg i totally forgot I have school today and forgot to do this someone help me rq I’ll brainlist plslsls be awake just make sure you write the word equation for each of the following metal oxidation reactions or if you can, also write a chemical equation below it. idrm bout that but it’ll be really nice if u did.
tried doing it and if ur one of the smart people that can do science unlike me surely u’ll help. ☺️
Answers
Answer:
Zn + O2 = ZnO
Mg + O2 = MgO
Cu + O2 = CuO
Al + O2 = Al2O3
Explanation: