When successive electron affinity values are use for elements that form ions with more than 1- charge, how do we find out the overall enthalpy change of turning the gaseous atoms into its gaseous ions?
Answers
To find the overall enthalpy change of turning gaseous atoms into their gaseous ions with more than 1- charge, you need to consider the successive electron affinity values of the element. Electron affinity is the energy change associated with adding an electron to a gaseous atom. When an element forms an ion with more than a 1- charge, it has accepted multiple electrons.
To calculate the overall enthalpy change, you should sum up the enthalpy changes for each successive electron addition. For example, if an element forms an ion with a 2- charge, you would consider the first and second electron affinity values.
Keep in mind that the first electron affinity is generally exothermic (energy is released), while the second electron affinity is typically endothermic (energy is absorbed). Therefore, when calculating the overall enthalpy change, you should account for the positive and negative values associated with the successive electron affinity values.
Once you've summed up the enthalpy changes for each electron addition, you will have the overall enthalpy change for converting the gaseous atoms into their corresponding gaseous ions.
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Related Questions
1. 2. LEVEL1 A. In each group, choose the objects that has the property given in brackets
Answers
Answer:
1. Diamond
2. The Image to the far right. It's rice I believe.
Explanation:
A lustrous material is a material that shine or usually reflect light. Fire isn't a material and the powder is dull and doesn't shine. In this case the diamond is a lustrous material and not a metal.
An edible substance is anything thing that can be consumed as food. Soap is consumable and the blue picture is definetly not either so we conclude that the rice is the edible option.
Complete the following reaction.
Answers
Answer:
14C6(1st one)
Explanation:
by balancing the reaction on the right and left,the right side miss 6 from number of proton and 14 from mass number....
APPLY YOUR KNOWLEDGE Lakeville High School uses oil and electricity to heat and light the school. The total square footage of the school is 30,000 ft2. The school used 390,000 gallons of oil in 2017 at a cost of $52.00 per barrel. There are 42 gallons in a barrel. The school also used 2,700,000 kWh of electricity at $0.075 per kWh.
A. What is the total cost of utilities for the school?
B. Calculate the number of BTU used per square foot per year. There are 150,000 BTU in 1 gallon of oil, and 3,413 BTU per kWh.
C. Calculate the cost per square foot per year for utilities.
Answers
The Total cost of utilities is $685357
Utilities
Utilities are the basic services your home, apartment, or business needs to keep it comfortable and functioning properly.
A) Cost of oil = 390000 gallons of oil / (42 gallons per barrel) * $52 per barrel = $482857
Cost of electricity = 2,700,000 kWh * $0.075 per kWh = $202500
Total cost of utilities = $482857 + $202500 = $685357
B) Number of BTU = (390000 gallons of oil * 150,000 BTU in 1 gallon) + (3,413 BTU per kWh * 2,700,000 kWh) = 6.77151 * 10¹⁰ BTU
BTU per ft² = 6.77151 * 10¹⁰ BTU / 30000 ft² = 2257170 BTU per ft²
C) Cost per ft² = $685357 / 30000 = $22.85 per ft²
The Total cost of utilities is $685357
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real gas behavior corrections to the ideal gas law are based on what important factors?
Answers
Real gas behavior corrections to the ideal gas law are based on three important factors:
1. Intermolecular forces: Ideal gas law assumes that there are no intermolecular forces between gas molecules, but in reality, gas molecules do interact with each other. These intermolecular forces become significant at high pressures and low temperatures, causing the gas to deviate from ideal behavior.
2. Molecular size: Ideal gas law assumes that gas molecules have negligible volume, but in reality, gas molecules do occupy space. At high pressures, the volume of the gas molecules becomes significant, leading to deviation from ideal behavior.
3. Pressure and volume area : At high pressures and low temperatures, the gas molecules are more closely packed, and the volume of the gas is less than predicted by the ideal gas law. At low pressures and high temperatures, the gas molecules are far apart, and the volume of the gas is greater than predicted by the ideal gas law.
Therefore, the corrections made to the ideal gas law take into account these factors to give a more accurate representation of the behavior of real gases.
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20.What is it called when particles in a solid or liquid move slower and closer
together?
Answers
Answer: freezing
Explanation:
when the atoms or molecules in a solid or liquid are moving slower and closer together, it is called brrrrrrrrr freezinf
During the SI Scavenger Hunt Lab, a student measured her foot length using a meter stick and recorded it as 25 cm. However, at the shoe store, the sales staff measured the length of her foot to be 23.7 cm. If the shoe store’s measurement is accepted as correct, what is the percent error of her meter stick measurement?
Answers
Answer:
Percent error in meter stick measurement is 5.5%.
Explanation:
Given data:
Measured value = 25 cm
Accepted value = 23.7 cm
percent error = ?
Solution:
Subtract the accepted value from measured value divided by accepted value multiply by 100.
Formula:
(measured value - accepted value / accepted value ) × 100
Now we will put the values.
(25 cm - 23.7 cm/23.7 cm ) × 100
1.3 cm/23.7 cm ) × 100
0.055× 100
5.5%
Percent error in meter stick measurement is 5.5%.
Write dissociation equations to describe what would occur when each of the following ionic compounds dissolve in water.
a. NaBr
b. K2SO4
c. Pb(C2H3O2)2
d. NH4NO3
e. LiI
f. HCl
Answers
Un gas ocupa un volumen de 358L a 152°C y 470 mmHg ¿Qué volumen ocupara el gas, si la temperatura aumente a 500 K y 6 atm?
Answers
Answer:
42 L
Explanation:
de los parámetros en la pregunta;
V1 = 358L
T1 = 152 ° C + 273 = 425 K
P1 = 470 mmHg × 1 atm / 760 mmHg = 0.6atm
V2 =?
P2 = 6 atmósferas
T2 = 500 K
P1V1 / T1 = P2V2 / T2
P1V1T2 = P2V2T1
V2 = P1V1T2 / P2T1
V2 = 0,6 × 358 × 500/6 × 425
V2 = 107400/2550
V2 = 42 L
The electrolyte that is used to make Hypochlorous Acid is made from Sodium Chloride (NaCl). the bottle says that the electrolyte solution contains 25% sodium chloride. If 2.4 ounces of the solution is added to the half gallon to prepare for the reaction. How many total grams of sodium chloride are used in the reaction. If the reaction produces 1100 PPM of HOCl (hypocholorus acid) how many grams of Hypocholrous are made? Do you think all the NaCl was converted to HOCl? or we can brew one more time and get more HOCl. If all of the NaCl converts to HOCl what would be the maximum possible PPM of the disinfectant
Answers
Answer:
63.9 grams. Yes, the Nacl was converted. Maximum possible ppm is 540ppm.
Explanation:
I this is college level chemistry not regular high school chem.
Answer:2
Explanation:
it is it do not ask questions
Given the particulate model which depicts the mechanism for the decomposition of NO2, answer the following questions.What is the chemical formula for the intermediate? Write a balanced equation for the overall chemical reaction. Do not add states of matter.
Answers
{2 NO2 ->[\Delta] 2NO + O2} This reaction is an exothermic reaction and occurs in an Oxidation-Reduction Reaction and balanced equation for the overall chemical reaction
Overview of NO2 Decomposition The decomposition of nitrogen dioxide (NO2) is a complex chemical reaction that involves a series of intermediate steps. In its most basic form, the overall reaction can be described as NO2 reacting with oxygen to form nitrogen monoxide (NO) and oxygen (O2). The particulate model of this reaction shows the detailed steps involved in the reaction. Intermediate Steps The particulate model of the NO2 decomposition process begins with NO2 reacting with oxygen to form nitrogen monoxide (NO) and oxygen (O2). This is a two-step reaction, with the first step being the formation of nitrogen dioxide (NO2) and oxygen (O2) as intermediate products:
{2 NO2 <=>[\Delta] NO2 + O2}
The second step is the reaction of the nitrogen dioxide (NO2) and oxygen (O2) to form nitrogen monoxide (NO) and oxygen (O2):
{2 NO2 + O2 ->[\Delta] 2NO + O2}
Balanced Equation The overall chemical reaction for the decomposition of NO2 can be expressed as a balanced equation:
{2 NO2 ->[\Delta] 2NO + O2} The reaction is an exothermic reaction and produces heat. This is an example of an Oxidation-Reduction Reaction, as the nitrogen dioxide (NO2) is oxidized to form the nitrogen monoxide (NO), while the oxygen (O2) is reduced to form oxygen (O2).
The decomposition of NO2 is a complex chemical reaction that involves a series of intermediate steps. The particulate model of the reaction shows the detailed steps involved in the reaction, starting with the formation of nitrogen dioxide (NO2) and oxygen (O2) as intermediate products, and then the reaction of the nitrogen dioxide (NO2) and oxygen (O2) to form nitrogen monoxide (NO) and oxygen (O2). The overall chemical reaction for the decomposition of NO2 can be expressed as a balanced equation. This reaction is an exothermic reaction and occurs in an Oxidation-Reduction Reaction
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Which of the following correctly describes a Brønsted-Lowry base? A. It accepts protons. B. It donates protons. C. It produces OH− ions in solution. D. It donates an electron pair.
Answers
when you see a bright green cellphone, you know that all the colors are being absorbed exept one
green blue red yellow
Answers
Answer:
green is not being absorbed
Explanation:
Zeke knows that there are several layers of sediment underneath his town. The top layer is soil, the next layer is clay, and the next layer is made up of gravel. He suspects that polluted water from a nearby mine is passing through one of these layers and making it into a local river. What could Zeke do to figure out how the polluted water might be moving from the mine to the river? A. He could build a model of the mine and test how deep it can go before it collapses. B. He could remove water from the mine and test it for certain pollutants. C. He could build a model of the soil layers and test if water passes through any of them. D. He could pour polluted water on the ground and test how long it takes for it to reach the river.
Answers
Answer:
He could add a model of soil layers.
Explanation: C
In an ecosystem where water from mine is polluting river it can be tested by building a model of the soil layers and test if water passes through any of them.
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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A tall stack of books is sitting on a table. One of the reasons the book stay where they are is because-
Choices:
A: The chair is helping to hold the table up.
B: The table is exerting a balanced force on the books.
C: The books are exerting an unbalanced force on the table.
D: The books keep shifting enough to keep the stack balanced.
Please help me!
Answers
issued this? watch kcv: atomic theory; read section 2.3. you can click on the review link to access the section in your etext. carbon and oxygen form both carbon monoxide and carbon dioxide. when samples of these are decomposed, the carbon monoxide produces 3.36 g of oxygen and 2.52 g of carbon, while the carbon dioxide produces 9.92 g of oxygen and 3.72 g of carbon.
Answers
The atomic ratio of carbon to oxygen in carbon monoxide (CO) is 1:1, and the atomic ratio of carbon to oxygen in carbon dioxide (CO₂) is 2:1.
Firstly, we can analyze the decomposition of carbon monoxide (CO) and carbon dioxide (CO₂) to determine the atomic ratios involved.
Let's denote the atomic ratio of carbon to oxygen in carbon monoxide as x, and the atomic ratio of carbon to oxygen in carbon dioxide as y.
According to the given data;
Decomposition of carbon monoxide (CO);
Oxygen produced = 3.36 g
Carbon produced = 2.52 g
We know that the atomic mass of carbon is 12 g/mol, and the atomic mass of oxygen is 16 g/mol. Using these values, we can calculate the number of moles for each element;
Number of moles of oxygen = mass / atomic mass = 3.36 g / 16 g/mol = 0.21 mol
Number of moles of carbon = mass / atomic mass = 2.52 g / 12 g/mol = 0.21 mol
Since the atomic ratio of carbon to oxygen in carbon monoxide is x, we can write the following equation;
0.21 mol C / (0.21 mol O) = x
Simplifying the equation, we have;
x = 1
Therefore, the atomic ratio of carbon to oxygen in carbon monoxide is 1:1.
Decomposition of carbon dioxide (CO₂);
Oxygen produced = 9.92 g
Carbon produced = 3.72 g
Following the same calculations as before;
Number of moles of oxygen = mass / atomic mass = 9.92 g / 16 g/mol = 0.62 mol
Number of moles of carbon = mass / atomic mass = 3.72 g / 12 g/mol = 0.31 mol
Since the atomic ratio of carbon to oxygen in carbon dioxide is y, we can write the following equation;
0.31 mol C / (0.62 mol O) = y
Simplifying the equation, we have;
y = 0.5
Therefore, the atomic ratio of carbon to oxygen in carbon dioxide is 1:0.5, which can be simplified to 2:1.
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--The given question is incomplete, the complete question is
"Missed this? watch kcv: atomic theory; read section 2.3. you can click on the review link to access the section in your text. carbon and oxygen form both carbon monoxide and carbon dioxide. when samples of these are decomposed, the carbon monoxide produces 3.36 g of oxygen and 2.52 g of carbon, while the carbon dioxide produces 9.92 g of oxygen and 3.72 g of carbon. Calculate the atomic ratio of carbon to oxygen in carbon monoxide, and carbon dioxide."--
consider bromine, which occurs as a mixture of two isotopes: bromine-79, with a natural abundance of 50.7% and an exact mass of 78.92 amu and bromine-81, with a natural abundance of 49.3% and an exact mass of 80.92 amu. what is the average atomic mass of bromine?
Answers
The answer given in the question is option a, which is the average molecular mass of bromine, which is 79.9 amu.
What is an isotope ?Isotopes are atoms that possess the same atomic weight but differing numbers of neutrons. They differ in mass and hence in physical qualities, although having nearly identical chemical properties.
Atomic mass of bromine = ?
Percent abundance of 1st isotope = 50.7%
First isotope's atomic mass is 78.92 amu.
Percent abundance of 2nd isotope = 49.3%
Atomic mass of 2nd isotope =80.92 amu
Average atomic mass is equal to the product of the atomic masses of the first and second isotopes, divided by 100.
Average atomic mass = (50.7×78.92)+(49.3×80.92) /100
Average atomic mass = 4001.24 + 3989.36 / 100
Average atomic mass = 7990.6 / 100
Average atomic mass = 79.9 amu.
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The Complete Question :
What is the atomic mass of bromine, given the atomic masses and percent abundance of the two isotopes are 78.92 amu (50.7%) and 80.92 amu (49.3%)?
Select one:
a. 79.9 amu
b. 78.9 amu
c. 80.9 amu
d. 35 amu
The answer given in the question is option a, which is the average molecular mass of bromine, which is 79.9 amu.
What is an isotope ?Isotopes are atoms that possess the same atomic weight but differing numbers of neutrons. They differ in mass and hence in physical qualities, although having nearly identical chemical properties.
Given that,
Percent abundance of 1st isotope = 50.7%
First isotope's atomic mass is 78.92 amu.
Percent abundance of 2nd isotope = 49.3%
Atomic mass of 2nd isotope =80.92 amu
Atomic mass of bromine = ?
Average atomic mass is equal to the product of the atomic masses of the first and second isotopes, divided by 100.
Average atomic mass = (50.7×78.92) + (49.3×80.92) / 100
Average atomic mass = 4001.24 + 3989.36 / 100
Average atomic mass = 7990.6 / 100
Average atomic mass = 79.9 amu.
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Which gland of the endocrine system is located near the brain?
Answers
Answer:
The pituitary gland is located below the brain. :)
what is the position of lanthanides in Modern Periodic Table
Answers
Answer:
in sixth period out of 32 elements, 14 elements have been placed separately in horizontal row below periodic table.
1. Explain what happens to the train cars when the engine car begins moving to the left. In your response, describe the role played by magnetic force.
Answers
The train cars moves in the same direction when the engine car begins
moving to the left.
What is Law of magnetism?The law of magnetism states that like poles repel and unlike poles attract.
In substances which have magnetic field, they are known to attract each
other.
The engine and train car are highly magnetized which results in them
moving in the same direction when they are in close contact with one
another.
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49. Identify the noble gas that has atoms in the ground state with the same electron configuration as the nitrogen in a molecule of isocyanic acid
Answers
Answer:
Neon (Ne)
Explanation:
Nitrogen in it's neutral state has valency of 5 and it's electronic configuration is given as;
1s2 2s2 2p3
However in isocyanic acid, it forms a covalent bond with hydrogen and carbon. Due to this bond, it is able to achieve stable octet configuration. The configuration is given as;
1s2 2s2 2p6
This is the same electronic configuration as Neon
URGENT!!!!
Part D: Challenge
An unknown mixture is set in beaker on the teacher's table. Describe the five different parts of the
mixture and how we can separate it.
Answers
An unknown mixture is set in beaker on the teacher's table the five different parts of the mixture and we can separate it by method evaporation, distillation, sedimentation, and filtration
Mixture is the composed of one or more pure substances in varying compositions called as mixture and unknown mixture is separated by shake the separatory funnel to allow intimate mixing of the solutions and effect extraction of the compound from the organic mixture and mixture can be physically separated by sedimentation process, filtration, crystallization, distillation, diffusion, panning, magnetic separation, and adsorption are a few of the methods used to separate materials and the substance is said to be pure when a sample of it has purified all other type of material
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What type of chemical reaction is the following: CH4 + O2 ➜ CO2 + H2O
Answers
Complete combustion of an alkane (methane)
You're essentially burning CH4 in the excess presence of oxygen gas, which results in the liberation of water and carbon dioxide
Answers for this assignment
Answers
The following chemical compounds are;
V₂O₅ Vanadium (V) oxide,
SF₆ Sulfur hexafluoride
HClO₂ Chlorous acid
(NH₄)₂SO₄·6H₂O Ammonium sulfate hexahydrate
What should you know about the chemical compound called Chlorous acid?Chlorous acid is a weak and unstable acid. This acid exists mainly in aqueous solutions. They are used in disinfectants, and bleaching products. They are good sanitizers and helps to reduce bacteria.
Apart from being in products we commonly use in our house, Chlorous acid is also used in the paper and textile industries for bleaching purposes.
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PLLLLEEAASEEE HELLPP!!
What is the molarity of 150 g C6H12O6 per 0.50 L?
A. 300 mol/L
B. 75.0 mol/L
C. 1.68 mol/L
D. 0.833 mol/L
Answers
Answer: The correct option is C) 1.68 mol/L
Explanation:
Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:
\(\text{Molarity of solution}=\frac{\text{Given mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (L)}}\) .....(1)
Given values:
Given mass of \(C_6H_{12}O_6\) = 150 g
Molar mass of \(C_6H_{12}O_6\) = 180 g/mol
Volume of the solution = 0.50 L
Putting values in equation 1, we get:
\(\text{Molarity of solution}=\frac{150}{180\times 0.50}\\\\\text{Molarity of solution}=1.68M\)
Hence, the correct option is C) 1.68 mol/L
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Answers
Answer:
fsdafdsafdsafdsafdasfsagfd
Explanation:
holaaaaaaaa español doy coronaaaaaaaa
Answers
thank you for the points
In order to produce CO2, a student put a sample of calcium carbonate in a flask and added hydrochloric acid using the following equation: Ca(CO3) + HCl → H2O + CO2 + CaCl2 The student finds the mass of CO2 generated to be 100 g. If the student began with 200 g of HCl and there was ample CaCO3 left unreacted, what was the percent yield?
Answers
Answer:
82.9% Is the percent yield
Explanation:
First, we need to balance the equation.
Ca(CO3) + 2HCl → H2O + CO2 + CaCl2
Since the problem tells you that the excess reactant is Ca(CO3), we just need to Stoichiometry to solve for the theoretical yield.
\(\frac{200g HCl}{1}\) x \(\frac{1 mole HCl}{36.46gHCl}\) x \(\frac{1 mol CO2}{2molHCl}\) x \(\frac{44.01CO2}{1molCO2}\) =120.707 g (theoretical yield)
Take your actual yield of 100g, divide that by 120.707, then multiply that decimical by 100.
What is the density of an object having a mass of 16 g and a volume of 30 mL ?
Answers
Answer:
12
Explanation:
What is the Hall coefficient (RH) in Ccc if the acceptor doping is 4.18∗10∧15/cc, and the donor doping is 9.40∗10∧15/cc ? Three significant figures and exponential notation 1.23e−4
Answers
The Hall coefficient (RH) in this case is approximately -3.01 * 10^-6 C^-1 cc (rounded to three significant figures in exponential notation).
The Hall coefficient (RH) is a parameter used to describe the behavior of charge carriers in a material when subjected to a magnetic field. It is given by the equation RH = 1/(e * p) where e is the elementary charge and p is the total charge carrier density. In this case, we are given the acceptor doping concentration (Na) and the donor doping concentration (Nd) in units of /cc.
To calculate the Hall coefficient, we need to determine the total charge carrier density (p). The total charge carrier density can be calculated as the difference between the acceptor doping concentration and the donor doping concentration: p = Na - Nd.
Given the acceptor doping concentration Na = 4.18 * 10^15/cc and the donor doping concentration Nd = 9.40 * 10^15/cc, we can substitute these values into the equation to find p:
p = Na - Nd
= (4.18 * 10^15/cc) - (9.40 * 10^15/cc)
= -5.22 * 10^15/cc
Now, we can substitute the value of p into the Hall coefficient equation:
RH = 1/(e * p)
= 1/(1.60 * 10^-19 C * (-5.22 * 10^15/cc))
= -3.01 * 10^-6 C^-1 cc
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27.2Pb(NO3)2 --> 2Pb0 + 4NO2 + O2
O A. Synthesis
B. Single displacement
C. Decomposition
D. Combustion