1062.3 KJ heat is absorbed or released in the reaction of 20.0 g of nh3 with sufficient oxygen to produce no (g) and h2o (l).
The heat absorbed or released in the reaction of 20.0 g of NH3 with oxygen to produce NO and H2O depends on the specific conditions of the reaction and the enthalpy change associated with the reaction.
The general equation for the reaction of NH3 with oxygen to produce NO and H2O is:
4NH3 + 5O2 -> 4NO + 6H2O
The enthalpy change for this reaction, which is the heat absorbed or released during the reaction, can be calculated using the enthalpy changes of formation of the reactants and products. The enthalpy change of formation is the heat absorbed or released when a substance is formed from its elements in their standard states.
The enthalpy change of formation of NH3 is -46.2 kJ/mol, the enthalpy change of formation of O2 is 0 kJ/mol, the enthalpy change of formation of NO is +90.3 kJ/mol, and the enthalpy change of formation of H2O is -285.8 kJ/mol.
To calculate the enthalpy change for the reaction, we can use the following equation:
ΔH = (4 x -46.2 kJ/mol) + (5 x 0 kJ/mol) - (4 x +90.3 kJ/mol) - (6 x -285.8 kJ/mol)
This gives us an enthalpy change of -902.8 kJ/mol.
To convert this to the heat absorbed or released for 20.0 g of NH3, we need to multiply by the number of moles of NH3 used in the reaction. The molar mass of NH3 is 17.0 g/mol, so 20.0 g of NH3 is equal to
20.0 g / 17.0 g/mol = 1.18 moles of NH3.
The heat absorbed or released in the reaction of 20.0 g of NH3 with oxygen to produce NO and H2O is therefore -902.8 kJ/mol x 1.18 moles = -1062.3 kJ.
This means that the reaction absorbs 1062.3 kJ of heat from the surroundings.
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Describe a situation in industrial/environmental chemistry, where it would be important to factor in knowledge of limiting and excess reactants?
A task for limiting reagent of reactant inside a chemical reaction is significant since it can aid the scientist in predicting the maximum amount of reactant is used,
What significance does limiting surplus reactant or percent yield have?The reactant that limits the amount or product that may be generated in a scientific reaction is referred to as the limiting reactant.Since there is more of the surplus reactant than is required to fully react with limiting reactant, part of a excess reactant is still present after reaction is finished.
Why is it crucial to understand the limiting factor?The same limiting variables may be present in many habitats and may have an impact on the populations of the both species of plants and animals.The carrying capacity of a habitat—the most population it can sustain—is ultimately determined by limiting conditions.
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water pollution caused by
Answer:
Water pollution is caused by the introduction of contaminants into water bodies.
Explanation:
These contaminants can come from a variety of sources, including agricultural runoff, sewage treatment plants, industrial discharges, and stormwater runoff from urban areas. Water pollution can have serious impacts on the environment, including the loss of aquatic habitats, the decline of fish populations, and the contamination of drinking water supplies. It can also have negative impacts on human health, as some pollutants can be toxic or cause illness when ingested or come into contact with skin. There are a number of measures that can be taken to reduce water pollution, including regulating discharges from industrial and agricultural operations, improving sewage treatment processes, and implementing best management practices to prevent runoff from entering water bodies.
why is it important to not dispose of medicine this way
Answer:
Because Environmental Risks
Explanation:
Medicines poured down the drain can enter the environment and your community’s drinking water supplies. And it can cause a lot of diseases!
the second law of thermodynamics gives evidence that the universe has not always existed.
In layman's terms, the second law of thermodynamics states that entropy always rises. For instance, this theory explains why it is impossible to unmold an egg.
What does the 2nd law of thermodynamics state?The second law states that if a physical process is irreversible, the overall entropy of the system and its surroundings must increase. For a process to be irreversible, the final entropy needs to be higher than the starting entropy: Sf > Si (irreversible process). A physical principle known as the second law of thermodynamics is based on the understanding of how heat and energy are transformed globally. Unless energy is provided to reverse the direction of heat flow, heat always moves from hotter objects to colder objects. This is a straightforward statement of the law.
What is the second law of thermodynamics used for?Unless you take action to prevent it, hot things always cool according to the second law of thermodynamics. It conveys a fundamental and straightforward reality about the universe: namely, that entropy, which is a measure of disorder, is constantly on the rise.
Entropy always grows, according to the second rule of thermodynamics. This idea explains, for instance, why it is impossible to unmold an egg.
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nitrogen-13 has a half-life of 10 minutes. how much of a 200 mg sample would remain after 30 minutes?
The Nitrogen-13 has a half-life of 10 minutes0.250 g of a 200 mg sample would remain after 30 minutes .
Calculation :
Determine the remaining mass of the substance,
mf if the initial mass is mi = 2.00 g. After 30 minutes, 30 minutes/10 minutes = 3 half-lives have passed, so the residual mass is reduced by a factor of i/2³. Calculate the residual mass of a substance using the formula, mf=mi×1/2³. We proceed with the solution.
mf=mi×1/2³
mf=2.00g/8
=0.250g
Half-life (symbol t½) is the time it takes for a (substance) quantity to reduce its original value by half. The term is often used in nuclear physics to describe how quickly unstable atoms radioactively decay or how long stable atoms survive.
The term is also used more generally to characterize any type of exponential (or rarely non-exponential) decay. For example, medicine is concerned with the biological half-life of drugs and other chemicals in the human body. The opposite of half-life (when growing exponentially) is doubling time.
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What carbonyl compounds might you start with in a Grignard synthesis of the following compound? 3-phenyl-3-pentanol
The carbonyl compounds might you start with in a Grignard synthesis of the following compound is 3-phenyl-3-pentanol.
The Grignard reagent is represented with the aid of using R-MgX, where, R may be an aryl or alkyl organization and X may be both chlorine or bromine. Carbonyl compound reacts with Grignard reagent accompanied with the aid of using hydrolysis outcomes withinside the formation of alcohol as a product.
3-phenyl-3-pentanol may be synthesized with the aid of using the response of 3-pentanone with phenyl magnesium bromide accompanied with the aid of using hydrolysis.
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exothermic reaction that has an overall increase in entropy is a) spontaneous only at high t b) spontaneous only at low t c) always spontaneous d) spontaneous in the reverse direction.
Exothermic reaction that has an overall increase in entropy is always spontaneous.
Exothermic reactions are defined as "reactions with a negative total standard enthalpy change ΔH⚬." Exothermic reactions typically produce heat.An exothermic reaction is one that releases energy in the form of light or heat. Thus, in an exothermic process, energy is transferred into the environment rather than taken from it, as in an endothermic reaction. The change in enthalpy ( ΔH) in an exothermic reaction is negative.
As a result, the net amount of energy required to start an exothermic reaction is less than the net amount of energy produced by the process. The net quantity of heat energy that passes through a calorimeter, an instrument used to quantify the heat emitted by a chemical reaction, is equal to the negative of the total energy change of the system.
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Answer:
Explanation: C)always spontaneous
A polyunsaturated fatty acid contains more than one hydroxyl group. carboxyl group. double bond long carbon chain. carbonyl group.
Yes a polyunsaturated fatty acid contains more than one
Double bond long carbon chain.
What is fatty acid?Fatty acid is a type of acid that is found in only fat and oils.
A fatty acid containing more than one double bond (C=C). The essential fatty acids. The reason is omega-3 and omega-6 are the polyunsaturated fatty acids (PUFAs) that contain more than two or more (cis) double bonds. Dietary that is intake of some PUFAs may of have beneficial effects on the blood pressure, serum and lipds, and the inflammation.
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a decrease of ph by 3 implies
Therefore, the pH of water would change from 7 to 8 if the amount of hydroxide ions in it were to rise by a factor of 10.
An acid solution's pH will often decrease as it becomes more concentrated. For bases, more highly concentrated solutions will result in higher pH values. b) The task requires calculating the change in [H 3 _3 3 O + + +] when pH is reduced (by 3 units). Write a 3 on the left side of the equation if the pH value is lowered. As a result, as can be seen from the computation, the [H 3 _3 3 O + + +] value will be raised by 10 3 3 3.
The pH drops as a solution becomes more acidic (as [H+] rises).
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what should you expect to observe when the ingredients in an antacid react with hcl to produce h2co3
When antacid reacts with HCl to produce H2CO3 it produce fizzy gas react due to a double displacement reaction.
Table salt and carbonic acid are produced in a two fold displacement process when hydrochloric acid and antacid are combined. Additionally, due to the instability of carbonic acid, it will decompose into water and carbon dioxide, emitting a "fizzy" gas.
Strong acid hydrochloric acid is denoted by the chemical formula HCl. The primary ingredient in antacids is sodium bicarbonate, sometimes known as baking soda and has the chemical formula NaHCO3.
Antacid undergoes a chemical reaction when it reacts as a carbonate with powerful acids like hydrochloric acid to create compounds with a different chemical makeup from the beginning components. Similar reactions will be produced by other carbonates, such as calcium carbonate, which makes up the majority of Tums.
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a compound composed of 3.3% h, 19.3% c, and 77.4% o has a molar mass of approximately 60 g/mol. what is the molecular formula of the compound?
A substance with a molar mass of around 60 g/mol with a composition of 3.3% H, 19.3% C, having 77.4% O has the chemical formula CH2O3.
Give an example and describe the molecular formula.The molecular formula gives the amount of atoms of each element that make up one molecule of a material, giving the number of atoms of each element per molecule of a substance. It shows an accurate count of each atom within a molecule. Propane, for instance, has the chemical symbol C4H10. According to this formula, the offered chemical consists of 4 carbon atoms and 10 hydrogen atoms.
What is meant by the term "molecular formula"?The number of each object's atoms in a substance's molecules is determined by the molecular formula, which is also known as the "molecular formula." It shows an accurate count of each atom within a molecule. As an example
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Assume that HArF is a molecular compound. a. Draw its Lewis structure. b. What are the formal charges on $\mathrm{Ar}$ and $\mathrm{F}$ in the structure you drew? c. What is the shape of the molecule? d. Is HArF polar?
For each atom in a Lewis structure, you should count how many electrons it "owns" in order to get the formal charges. All of its lone pair electrons as well as 50% of its bonding electrons should be counted. The formal charge is the discrepancy between the atom's number of valence electrons and the number it possesses.
How do you determine a double bond's formal charge?
Formal Charge is calculated as follows: [# of valence electrons on a neutral atom] - [(# of lone electron pairs) + (12 # bonding electrons)] Valence electrons = match the periodic table's group number (for representative elements). Lone Pairs are atoms with only one electron present. An electron pair counts as two since each electron counts as one.
What does a formal charge of +1 indicate?
The Formal Charge is the difference between the Group Number and the number of assigned electrons if the number of assigned electrons is less than the Group Number (for example, if the assigned number of electrons is 4 and the atom is nitrogen with a Group Number of 5 (Group V), the Formal Charge would be +1, meaning it is positive).
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calculate the ph of a solution prepared by dissolving 0.150 mol of acetic acid and 0.300 mol of sodium acetate in water sufficient to yield 1.00 l of solution. the ka of acetic acid is 1.76 x 10-5. group of answer choices 2.516 5.056 3.892 4.502 10.158
The Ka of acetic acid is pH 5.056.
What is meant by pH of a solution?You need to know the hydronium ion concentration in moles per liter to determine the pH of an aqueous solution (molarity). The following formula is used to determine pH: pH equals -log[H3O+]. pH equals log([H+]) The pH formula is displayed above. The hydronium concentration's negative log base 10 is known as pH. The pH is a logarithmic indicator of how many hydrogen ions are present in a solution. The pH serves as a gauge for a solution's acidity or alkalinity, as well as its hydrogen ion concentration. The pH scale typically ranges from 0 to 14. Acidic aqueous solutions at 25 °C are those with a pH below 7, and basic or alkaline solutions are those with a pH above 7.
The study of chemicals and bonds is called chemistry.
The correct answer is 5.056
Acetic acid (CH₃COOH), in the question, is in equilibrium with water, thus:
[tex]$$\mathrm{CH}_3 \mathrm{COOH}+\mathrm{H}_2 \mathrm{O} < -- > \mathrm{CH}_3 \mathrm{COO}^{-}+\mathrm{H}_3 \mathrm{O}^{+}$$[/tex]
From here, we have to find the[tex]$\mathrm{pH}$[/tex]of a solution:
[tex]$$p H=p k a+\log _{10}\left[\frac{\left[\mathrm{CH}_3 \mathrm{COO}^{-}\right]}{[\mathrm{CHaCOOH}]}\right.$$[/tex]
All the data is given in the question, put the value and solve it
Molarity of acetic acid, [CH₃COOH], is 0.150mol / 1.00L = 0.150MMolarity of acetate ion, [CH₃COO⁻], is 0.300mol / 1.00L = 0.300M.pKa of the buffer is -log Ka: 4.754Replacing the value:-
[tex]$$p H=4.754+\log _{10}\left[\frac{[0.300 M]}{[0.150 M}\right]$$[/tex]
After solving the pH is 5.056.
Hence, the correct answer is 5.056.
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provide the major organic product of the following reaction
A secondary amine, that is. The main organic product that results from the following reaction is 3-dimethylbutan-2-amine, option (B).
How can you identify the main reactions products?There are two possible outcomes when an asymmetrical alkene is combined with an asymmetrical reactant like HBr, HCl, or H2O. The main product of this reaction can be predicted using the Markovnikov Rule, which stipulates that hydrogen will be added to the carbon with additional hydrogen.
What does an organic chemist mean by a major and minor product?Large and Small Products Out of the two potential products, Markovnikov's rule-following product is referred to as the principal product. Most of the time, this substance will form (70%–95%).
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nuclear decay occurs according to first-order kinetics. a nuclide decays in 23.0 minutes from 12.9 g to 2.04 g. what is the rate constant for the nuclide?
The nuclide's rate constant is 0.0803 min-1 assuming first-order kinetics governs nuclear decay. A nuclide degrades from 12.9 g down 2.04 g in 23.0 minutes.
Exactly why do nuclear atoms degrade?When a nuclear configuration with a lower energy is available to which an atom can transition, the atom radioactively decays. It's not the product of the atom aging or changing over time; rather, the actual decay occurrence of a single atom occurs arbitrarily.
How is nuclear decay a reaction?Nuclear reactions can be divided into two categories: nuclear transmutation reactions and nuclear decay reactions. An unstable nucleus emits while undergoing nuclear decay, also known as radioactive decay, when it becomes the nucleus of one or several other elements.
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What is the name of the compound: CoN: #spelling counts! Answer: Name the following acid: HI
Iodides are made by reacting hydrogen iodide (HI), also known as hydroiodic acid, with metals or their oxides, hydroxides, and carbonates.
The acid in this instance is Hydroiodic acid (HI) entirely dissociates in water, making it a powerful acid. Iodine is bigger than hydrogen, which is smaller. As a result, the electron cloud's overlapping is likewise not very appropriate. This results in an extremely low binding energy between hydrogen and iodine. An aqueous solution of hydrogen iodide is known as hydroiodic acid (or hydriodic acid). It is a potent acid that totally ionizes in aqueous solutions. It has no color. Concentrated solutions typically range in HI from 48% to 57%.
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2. The concentration of HCI in a solution is 1 x 10^-2 mol/L. What would the pH
of the solution be?
(Hint: use pH = -log[H3O+])
A. 2
B. 3
C. 4
D. 5
A. 2
B. 3
C. 4
D. 5A. 2
B. 3
C. 4
D. 5A. 2
B. 3
C. 4
D. 5
Perform at ta tion using half life Question e expressions can be derived from H Select the correct answer below
O rate laws integrated rate laws
O relative rate expressions
O none of the above
MORE INSTRUCTION SUBMIT Content Anaswa
Rate law expression is in the differential form while integrated rate law expression using integral calculus, where concentration of reactants and time are interrelated, so half life can be derived from integrated rate law. Option is (B)
A rate law demonstrates the relationship between reaction rate and reactant concentration. In general, the rate law for a reaction like aA products takes the form rate = k[A]n, where k is the proportionality constant referred to as the rate constant and n is the order of the reaction with respect to A. Rate laws can be represented as an integrated rate law or a differential rate law, which describes the actual reactant or product concentrations as a function of time. A differential rate law describes the change in reactant or product concentrations as a function of time.
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in regard to the e2 mechanism, rank the leaving groups in order of increasing reaction rate.
The rank of groups in order of increasing reaction rate in regards to E2 mechanism is F, Cl, Br and I.
Iodine is often non-reactive, while fluorine has an explosive reaction that makes it challenging to manage. Bromination and chlorination are typically exothermic reactions.
Group 7's halogens, which are non-metal elements, become less reactive as you move down the group. In contrast to the alkali metals in Group 1 of the periodic table, this trend is the opposite.
Halogens react at a rate of "F (2) gt Cl (2) gt Br (2) gt l (2)." Alkane react quickly with F2, but slowly with I2, necessitating the use of a catalyst. Fluorine's high electronegativity is the reason.
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Complete question: in regards to the E2 mechanism rank the leaving groups of increasing reaction rate
a) F b)I c)Br d)Cl
calculate the density of oxygen, o2 , under each of the following conditions: stp 1.00 atm and 35.0 ∘c
Density in STP, density in 1 atm, and 35 C = 1.43, 1.31 g/L. the amount from something per unit of length, area, or mass.
What is density & example?Density is a measure of just how much “things” is really in a given quantity of space. For instance, a block of the harder, lighter metal gold (Au) will be heavier than a block of the lighter element lead (Pb) (Au). Styrofoam blocks are less dense than bricks. Its definition is the mass per unit volume.
We measure density because.Density is an important concept because it allows us to forecast which compounds would float and will sink inside a liquid. Generally, if an object's density is less than its own, it will float.
Briefing:At STP,
Molar mass =32 g=0.032 kg
T=273.15 K
P=100kPa
PM=(ro)* RT
ro=PM/RT=(10^50.032)/(8.314273.15)=1.409
density=1.409 kg/m^3= 1.43g/L
Molar mass =32 g=0.032 kg
T=273.15 +25= 298.15 K
P=101.325 kPa
PM=(ro)* RT
ro=PM/RT=(1013250.032)/(8.314298.15)=1.308
density=1.308 kg/m^3 =1.31 g/L
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draw curved arrows to show the mechanism of deprotonation that generates an enolate ion.
The mechanism of deprotonation can be seen by resonance in the enolate ion.
Understanding the location of electrons and being able to draw the curved arrows that depict the mechanisms by which the reactions occur is one of the most critical tools for learning organic chemistry since they allow us to understand what controls reactions, and how reactions proceed.
Before we do this, we need to understand that a bond is due to a pair of electrons shared between atoms. When asked to draw a mechanism, curved arrows should be used to show all the bonding changes that occur.
When the charge shifts from the alpha carbon to the second, it becomes positively charged and the other carbon where the atom has shifted to, it becomes negatively charged.
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Better Life Ind compound has infrared absorptions at the following frequencies: 3300 and 3385 cm-[ (both weak) and no band between 1600 and 1850 cm Suggest the likely functional group that may be preseni ester ketone carboxyl group Submit Answer Try Another Verslon Iten secondary amine alcohol ether aldchyde primary amine primary amide sacondary amide tertiary amine tertiary amide
The likely functional group present is primary amine, Better Life Ind compound has infrared absorptions at the following frequencies: 3300 and 3385 cm-[ (both weak) and no band between 1600 and 1850 cm Suggest the likely functional group that may be preseni ester ketone carboxyl group
There is no C=O in this compound because the IR signal for C=O is ~1700, So the following can't be present: ester, ketone, carboxyl group, aldehyde, primary amide, secondary amide, and tertiary amide , There is no -OH group because the IR signal for -OH is broad at ~3400, So the following can't be present: alcohol, Now the choices, we are left with are: primary amine, secondary amine, and tertiary amine .Note that the primary amine results in 2 bands, secondary amine results in only 1 band, and teritary amine results in no bands near ~3300. This represents the N-H stretching. The likely functional group present is primary amine
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Consider the following four molecules. Which of these satisfy the octet rule and which do not? Drag the appropriate items to their respective bins. ► View Available Hint(s) Reset Help PF5 CS2 BBr3 CO32 Obeys octet rule Violates octet rule Submit Previous Answers Request Answer
Among the molecules that are given in question one that violates the octet rule is BBr3.
The octet rule states that atoms tend to gain or lose electrons in order to have eight electrons in their outermost energy level. This is because having eight electrons in the outermost energy level provides a more stable arrangement for the atoms. This is why most atoms form chemical bonds in order to achieve this octet configuration. In the case of the molecules listed, PF5, CS2, and CO32- all have eight electrons in their outermost energy level and therefore follow the octet rule. However, BF3 only has six electrons in its outermost energy level, which violates the octet rule. This means that BF3 is less stable than the other molecules and may be more reactive as a result. Overall, the octet rule is a useful guideline for predicting the stability and reactivity of atoms and molecules. By understanding the octet rule, chemists can better predict the behavior of different atoms and molecules, and can design more effective chemical reactions and processes.
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Prediction: If an increase in temperature increases the rate of evaporation of
water, then an increase in average daily temperatures will decrease lake water
levels over a two-year period.
Which of the following best describes this prediction?
OA. The prediction is useful because it specifies what observations
will be made to test a hypothesis.
OB. The prediction is not useful because scientists are skeptical of
anyone who claims to see into the future.
OC. The prediction is useful because it proves that the hypothesis is
true before any data have been collected.
OD. The hypothesis is not useful because it is too long as a sentence
and therefore difficult to read.
A. The prediction is useful because it specifies what observations will be made to test a hypothesis.
A prediction is a statement about what is expected to happen based on a particular hypothesis. In this case, the prediction is that an increase in average daily temperatures will decrease lake water levels over a two-year period. This prediction is useful because it specifies a clear and specific observation that can be made to test the hypothesis that an increase in temperature increases the rate of evaporation of water.
a battery harnesses a chemical reaction to extract energy in the form of useful electrical work. (a) a certain battery runs a toy truck and becomes par- tially discharged. in the process, it performs a total of 117.0 j of work on its immediate surroundings. it also gives off 3.0 j of heat, which the surroundings absorb. no other work or heat is exchanged with the sur- roundings. compute q, w, and du of the battery, making sure each quantity has the proper sign. (b) the same battery is now recharged exactly to its origi- nal condition. this requires 210.0 j of electrical work from an outside generator. determine q for the battery in this process. explain why q has the sign that it does.
The values of ΔU , w and q are -220.0 J, -117.0 J and -3.0 J respectively. As the heat is gained by the system it has a positive sign. Therefore, the value of q is 10.0 J.
A.
Here, battery is the given system. It does work to run the toy truck. Hence work ( w ) is done by the system, therefore, it's sign should be negative.
Battery releases heat to the surrounding, hence, the sign of heat ( q ) is also negative.
Write the mathematical expression for First law of thermodynamics.
ΔU = q + w
Substitute -3 J for q and -117.0 J for w to calculate ΔU of the battery.
ΔU = (-117.0 J)+(-3.0 J)
-220
That means, in this process the internal energy of the system decreases by 220 J.
Therefore, the values of ΔU , w and q are -220.0 J, -117.0 J and -3.0 J respectively.
B.
Now, the battery is recharged to its original condition. As the system has lost 220 J of energy so it
will have to gain 220 J of energy to reach its original condition.
Since, work is done on the battery by an external generator, w will have a positive sign.
Write the mathematical expression for First law of thermodynamics.
ΔU = q + w
Solve for q.
q = ΔU - w
Substitute +220.0 J for ΔU and +210.0 J for w to calculate the value of q.
q = (220.0 J) -(210.0 J)
= 10.0 J
As the heat is gained by the system it has a positive sign. Therefore, the value of q is 10.0 J.
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a mixture of ideal gases having a total mass of 28.3 g is placed in a 8 l vessel at 275.0 k. the equilibrium pressure is measured to be 1.8 bar. calculate the average molar mass of the gas mixture.
average molar mass of the gas mixture is 45.09 g/mol
Calculation :
We have ,
Total mass = 28.3 g , volume = 8L
Temperature = 275 k , pressure = 1.8 bar
first we have to find mole (Total) of gases .
PV =NRT
(1.77)*(8) = N(total)*(0.082057)*(275K)
N(total) = 0.6276 mole
Now, we know,
(mole) n = mass/molar mass
n (total)= Total mass/average molar mass
Average molar mass = Total mass/n total
= 28.3 g/0.6276 mole
Average molar mass = 45.09 g/mol
In chemistry, the molar mass of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance. The amount of a substance is the number of moles of that sample measured in moles. Molar mass is mass, not a molecular property of a substance. Molar mass is the average of many instances of a compound, which often differ in mass due to the presence of isotopes. Most commonly, molar mass is calculated from standard atomic masses, so it is a global average and a function of the relative isotopic abundances of constituent atoms on Earth. Molar mass is useful for converting between the mass of a substance and the quantity of a bulk substance.
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drag each label into the appropriate position to match the tissue characteristic to its class.
In biology, a tissue is described as a collection of cells that have a same structure and serve a single purpose.
Characteristic of Tissue : Muscle tissue: indicated high rates of energy consumption, excitable cells with cylindrical, branched, or spindle-shaped shapes,provides both movement through the body and movement of the body's components.Fast forms of communication are made possible by excitable cells in nervous tissue, which have multiple cellular extensions connecting nearby cells to one another.A basement membrane and an apical (free) surface are always present in glandular epithelial tissue.The most diverse tissue type, connective tissue, acts as a bridge between two other tissue types,includes significant amounts of extracellular matrix, the most prevalent type of tissue, which offers structural support and mechanical protection.To learn more about Tissue refer to:
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what are some conversion factors similar to the mole?
When converting between mass and moles, one can utilize the first conversion factor, and vice versa.
What other units compare to the mole?The kilomole (kmol), which is numerically equivalent to the kilogram-mole but whose name and symbol reflect the SI norm for standard multiples of metric units, came into use in chemical engineering practice in the late 20th century. As a result, kmol denotes 1000 mol.
Is it possible to convert using a mole?A mole-mass conversion is the most straightforward sort of manipulation that uses molar mass as a conversion factor (or its reverse, a mass-mole conversion). The molar mass of a substance is used in this conversion as a conversion factor to change mole units into mass units.
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biochemical tests for food macromolecules
Benedict's test is a biochemical test that determines food macromolecules. Benedict's reagent is a complicated mixture of copper(II) sulfate pentahydrate, sodium carbonate, and sodium citrate used as a chemical reagent.
A chemical test called Benedict's test can be used to determine whether an analyte contains reducing sugars. This test can therefore be used to identify simple carbohydrates that include a free ketone or aldehyde functional group.
It is frequently applied in place of Fehling's solution to find reducing sugars. The presence of additional lowering agents also produces positive results.
The final color of the reagent will be "hotter" if more reducing sugar is present. Bright orange is a very strong positive, yellowish to bright yellow is a moderate positive, and blue to blue-green or yellow-green is typically negative.
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In neutron moderation, neutrons are slowed down so that:
OA. the chain reactions can be slowed down.
O B. the nuclear fission reactions are slowed down as well.
C. they will more likely be absorbed by more atoms in uranium-235.
D. the control rods will be more effective.
Neutrons are slowed down so that they will more likely be absorbed by more atoms in uranium-235, Fast neutrons will react but the probability of reaction is much lower. The correct option is C
What is neutron moderation?Neutron moderators can be defined as type of material in a nuclear reactor that work to slow down the fast neutrons produced by fission to make them more effective in the fission chain reaction.
Therefore a neutrons must be slowed down by moderation to increase their capture probability in fission reactors.
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