The half-reactions and balanced redox reaction for the specified voltaic cell are as follows: reduction half-reaction: 2Fe3+(aq)+2e2Fe2+(aq) E=0.77V.
What is an E cell under normal circumstances?The standard voltage gain is the prospective of the tank under uniform conditions (60 Cm for mixtures, 1 atm with gases, and pure crystals or liquids for many other elements) and a constant temperature (25 °C).
How is the E standard cell calculated?Due to the larger standard reduction potential of the silver half-cell, reduction will occur. The half-cell of tin will oxidize. The formula E0cell=E0red+E0oxid can be used to get the overall cell potential.
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how many kilojoules of heat are absorbed when 40.5 g of mgo(s) is decomposed into mg(s) and o2(g) at constant pressure?
Decomposed into mg(s) and o2(g) at constant pressure is = −185.8⋅kJ if
40.5 g kilojoules of heat are absorbed at constant pressure .
How is kJ calculated?Essentially, the difference between calories and kilojoules is terminology - they're two different ways of measuring the energy contained in food and the energy we expend. You can convert calories to kilojoules by multiplying the calories by 4.2.
How many kilojoules burn 1kg?If you want to lose a kilogram of lean mass, such as muscle, the total energy deficit you need is about 7600 kilojoules. But to lose a kilogram of body fat, the energy deficit has to be about five-times greater, around 39,500 kilojoules.
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Each of the following reactions is catalyzed by an enzyme. For each reaction, classify the enzyme according to one of the six main classes suggested by the International Union of Biochemistry.
The first reaction is,
Each of the following reactions is catalyzed by an enzyme. For each reaction, classify the enzyme according to one of the six main classes suggested by the International Union of Biochemistry.
(Image attached to the end of the solution)
in first reaction HYDROLASE enzyme as clearly, it is a hydrolysis reaction
in 2nd reaction OXIDOREDUCTASE is the answer as it is a reduction reaction
Reduction, any of a class of chemical reactions in which the number of electrons associated with an atom or a group of atoms is increased. The electrons taken up by the substance reduced are supplied by another substance, which is thereby oxidized.
REDUCTION can be identified as:
* Removal of oxygen
* Addition of hydrogen
* Decrease in valency of metal ion[tex](e.g.[/tex] [tex]$\mathrm{Fe}+2$[/tex][tex]? $\mathrm{Fe}+3)$[/tex]
and the last one is clearly isomers of each other hence ISOMERASE.
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isopentylamine has two n-h peaks while n-butylacetamide has only one n-h peak. why?
Isopentylamine Hydrochloride. Purity: >98.0%(T). Synonyms: 3-Methylbutan-1-amine
Why it Happens ?Isopropylamine undergoes the same reactions as other simple alkyl amines, such as protonation, alkylation, acylation, and condensation with carbonyls. Isopropylamine, like other simple aliphatic amines, has a low pKa: [(CH3)2)CHNH3]+ has a pKa of 10.63.
Many herbicides and pesticides, including atrazine, bentazon, glyphosate, imazapyr, ametryne, desmetryn, prometryn, pramitol, dipropetryn, propazine, fenamiphos, and iprodione, include isopropylamine as a building block.It is a plastic regulating agent, an intermediary in the organic synthesis of coating materials, plastics, insecticides, rubber chemicals, medicines, and other chemicals, and an additive in the petroleum sector.
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what is the balanced chemical equation for the reaction of lead sulfide, pbs, with oxygen gas in order to form lead oxide and sulfur dioxide
The balanced chemical equation will be: PbS + O2 → PbO + SO2
Balanced chemical equations are essential for understanding and predicting chemical reactions. A balanced chemical equation is a way of representing a chemical reaction, showing the reactants and products, as well as the quantities of each.
The balanced chemical equation for the reaction of lead sulfide (PbS) with oxygen gas (O2) in order to form lead oxide (PbO) and sulfur dioxide (SO2) is:
PbS + O2 → PbO + SO2
This reaction occurs when the lead sulfide reacts with oxygen gas, resulting in two molecules of lead oxide and two molecules of sulfur dioxide.
The number of atoms of each element must be equal on both sides of the equation in order for the equation to be balanced.
Thus, two molecules of lead sulfide and three molecules of oxygen gas are required to produce two molecules of lead oxide and two molecules of sulfur dioxide.
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the smallest representative unit of an ionic compound is called a ?
The lowest representational unit for an ionic compound is a formula unit.
What does a chemical representative unit mean?The smallest unit in which a substance naturally exists is called a representative particle. The atom is the representative particle for most elements. The atom is the representative particle for most elements. Iron, carbon, and helium are made up of individual iron, carbon, and helium atoms.
What are atoms smaller than?Subatomic is defined as "less than an atom." Protons, neutrons, and electrons make up atoms. Even smaller particles known as quarks are the building blocks of protons and neutrons. Physicists believe quarks are elementary particles based on the evidence that is currently available.
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calculate the ph of the solution upon the addition of 0.015 mol of naoh to the original buffer.
After 0.015 mol of NaOH is added to the original buffer, the solution's pH is 4.8.
What are the answer and an example?A homogenous combination involving two or more materials with particles of less than one nm is referred to as a solution. Solutions come in many forms, including soda water, salt and sugar solutions, and others. Every element in a solution appears as a single wave.
When we know that Ka Equals 1.8 x 10⁻⁵, we may utilize it to calculate Pka.
by using this formula:
Pka = -㏒Ka
= -㏒(1.8 x 10⁻⁵)
= 4.7
Now, after we have got the Pka we need now to get moles of NaC₂H₃O₂ and
Moles of HC₂H₃O₂:
When moles of NaOH = 0.015 moles
When moles NaC₂H₃O₂ after adding NaOH
= initial mol NaC₂H₃O₂ + mol NaOH
∴moles NaC₂H₃O₂ = 0.1 + 0.015 = 0.115 moles
And moles HC₂H₃O₂ after adding NaOH
= initial mol HC2H3O2 - mol NaOH
∴ moles HC2H3O2 = 0.1 - 0.015 = 0.085 moles
So, when we have moles [HC2H3O2] &[NaC2H3O2] so we can substitution its values in [A] &[HA] :
By using H-H equation we can get the PH:
When PH = Pka + ㏒[A]/[HA]
Ph = 4.7 + ㏒0.115/0.085
= 4.8
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The complete question is-
choose the combination of factors that would lead to the greatest oxygen unloading from hemoglobin.
Low pH, high temperature, high Peoz, high 2,3-BPG
O Low pH, high temperature, low Pooz. high 2,3-BPG
O High pH, low temperature, low Pc02, low 2,3-BPG
High pH, high temperature, high Pcoz. low 2,3-BPG
The combination of factors that would lead to the greatest oxygen unloading from hemoglobin is Low pH, high temperature, high Pco2, high 2,3-BPG. Hence the correct option is (a).
This is because all of these factors shift the oxygen-hemoglobin dissociation curve to the left, making it easier for oxygen to dissociate from hemoglobin and be released into the tissues. The oxygen-hemoglobin dissociation curve is a graph that shows the relationship between the partial pressure of oxygen (P02) and the amount of oxygen bound to hemoglobin (HbO2) in blood. The curve shows that as the partial pressure of oxygen increases, more oxygen binds to hemoglobin, and as the partial pressure of oxygen decreases, less oxygen binds to hemoglobin. The curve is sigmoid in shape, with a steep portion at low oxygen pressures (representing the unloading of oxygen in the tissues) and a flatter portion at high oxygen pressures (representing the loading of oxygen in the lungs). Factors such as pH, temperature, carbon dioxide pressure (Pco2) and 2,3-bisphosphoglycerate (2,3-BPG) can shift the curve to the left or right. A leftward shift of the curve makes it easier for oxygen to dissociate from hemoglobin, and a rightward shift makes it harder for oxygen to dissociate from hemoglobin.
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How do you find the mass and fractional abundance of an isotope?
Bromine has two naturally occurring isotopes (Br-79 and Br-81) and an atomic mass of 79.904 amu.
a. If the natural abundance of Br-79 is 50.69%, what is the natural abundance of Br-81?
b. If the mass of Br-81 is 80.9163 amu, what is the mass of Br-79?
For an isotope, fractional abundance is abundance that is expressed as a fraction.
Natural abundance is shown as a percentage, whereas fractional abundance is represented by a number between 0 and 1. The mass number of an isotope is the total number of protons and neutrons in its nucleus. Because each proton and neutron has a mass equal to one atomic mass unit, this is the case. By dividing the sum of the protons and neutrons by one amu, you may get the atom's mass.
a.If Br-79 has a natural abundance of 50.69%, then Br-81 will have the following abundance: (100 - 50.69)% = 49.31% is what fractional abundance of 0.4931 is equivalent to.
b. The mass of the isotope Br-79 is 78.91 u
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A solution at pH 6 contains _________ H+ than the same amount
of a solution at pH 8.
a. 20 times more
b. 100 times more
c. 2 times less
d. 100 times less
A solution at pH 6 contains 100 times more H⁺ than the same amount of a solution at pH 8.
What is pH?The amount of hydrogen ions in a solution depends on the pH of the substance.
Comparing the concentration of H⁺ ions in acidic solutions to water, they are typically higher. More than 1×10⁻⁷ M is their concentration. In comparison to water, basic solutions contain fewer H⁺ ions. Less than 1×10⁻⁷ M is the concentration of them. Acidity will be present in solutions with a pH between 1 and 6. The pH range between 8 and 10 defines a basic solution.
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how are atoms in a molecule held together? responses through shared electrons through shared electrons through shared neutrons through shared neutrons through shared energy through shared energy through shared protons
A molecule's atoms are held together by shared electrons. This is known as a covalent bond. In a covalent bond, atoms share one or more electrons in order to fill their outermost electron shell, also known as valence shell.
This forms a stable electron configuration and creates a bond between the atoms. The sharing of electrons creates an electrostatic attraction between the positively charged nucleus of one atom and the negatively charged electrons of another atom. This attraction creates the chemical bond that holds the atoms together in a molecule.A neutron is a subatomic particle that is found in the nucleus of an atom. It has no electric charge and a slightly larger mass than a proton.
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a drop taken from the top of a mixture of salt and water will jot be identical to a drop taken from the bottom of the mixture
Answer:
Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. After the salt compounds are pulled apart, the sodium and chloride atoms are surrounded by water molecules, as this diagram shows. Once this happens, the salt is dissolved, resulting in a homogeneous solution.
Explanation:
The mass ratio of sodium to fluorine in sodium fluoride is 1. 21:1. A sample of sodium fluorideproduces 28. 8 g of sodium upon decomposition. How much fluorine (in grams) forms?
The premise behind this problem is that if the thermal decomposition also yields 34.5 g of sodium, you must utilise the stated mass ratio to calculate how much fluoride will be produced.
What the body does with sodium?
Sodium is a vital component that the body needs in very tiny amounts to keep bodily fluids in balance, keep nerves and muscles functioning properly, and to prevent excessive perspiration. The majority of Americans consume too much of it, and they might not even be aware of it.
What are sodium's five uses?
5Uses. Titanium, sodamide, sodium cyanide, sodium peroxide, & sodium hydride are all made from sodium. Nuclear reactors have used liquid sodium as a coolant in the past. Streetlights use sodium vapour, which emits a dazzling yellow light.
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ASAP PLEASE!!
Suppose that you want to remove the barium ions from 186.71 mL of 0.327 mol/L
aqueous barium nitrate solution. What is the minimum mass of sodium carbonate
that you should add?
The mass of the sodium carbonate that is required is 6.36 g.
What is the amount of the sodium carbonate that we need?No we know that the reaction that we want to carry out here is the kind of reaction that we call the precipitation reaction and we are trying to remove the barium ions by the use of sodium carbonate and in the process the barium would be removed as barium carbonate.
We have to look at the stoichiometry of the reaction which would be key as we try to obtain the mass of the sodium carbonate that we need in the reaction.
Number of moles of the barium ions = 0.327 M * 186.71/1000 L
= 0.06 moles
Given that the reaction between the carbonate ions and the barium ions is 1:1. mass of the sodium carbonate required = 0.06 moles * 106 g/mol
= 6.36 g
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the most stable form of nitrogen is n2, where nitrogen atoms are triple bonded together. however, phosphorus and arsenic prefer to form tetrahedral p4 and as4 clusters or long chains/lattices. explain this difference in bonding using periodic trends.
Periodic trends affect bonding, because of how the elements are arranged on the periodic table. Bond forming between two elements depends on electronegativities of the elements.
How can you tell whether two atoms will bond?Their total quantity of valence electrons is what decides whether or not two atoms will join together to create a molecule. The electrons known as valence electrons orbit at the atom's highest possible energy level. The majority of atoms require eight valence electrons to be stable and unreactive.
How may bonds be arranged in ascending polarity?We can determine if a given bond will be non-polar, polar covalent, or ionic using the Electronegativity. The bond is more polar the bigger the difference in electronegativity. The polarity of the following bonds should be in ascending order: H-H, O-H, Cl-H, S-H, and F-H.
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ammonia molecules react with water to form a solution that contains ammonium ions and hydroxide ions. how should water be classified in this reaction
In this reaction, the water is considered a base.
When ammonia molecules react with water, they form a solution that contains ammonium ions and hydroxide ion.
In this reaction, water will act as a base.This is because it is accepting hydrogen ions from the ammonia molecules and reacting with them to form a solution that contains both ammonium and hydroxide ions.
This is an example of a neutralization reaction, where an acid and a base react to form a neutral solution.
The water is classified as a reactant, as it is consumed and converted into the product solution.
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What is the IUPAC name for this compound? онa. cyclopentanolb. cyclohexanol c. cyclobenzenol d. phenol e. glycerol
The IUPAC name is e. glycerol.
The IUPAC nomenclature is based on naming the longest chain of carbons connected by single bonds in a molecule, whether it is a continuous chain or a ring. All deviations, whether multiple bonds or atoms other than carbon and hydrogen, are denoted by prefixes or suffixes based on a set of priorities. The International Union of Pure and Applied Chemistry (IUPAC) is a global organization that represents chemistry as well as related sciences and technologies. The International Union of Pure and Applied Chemistry is defined as IUPAC. It is the world's leading authority on chemical nomenclature and terminology. Thus, IUPAC nomenclature is essentially a method of naming organic compounds using specific rules.
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Compute the atomic packing factor for the rock salt crystal structure in which rC/rA=0.414.
The APF for the rock salt crystal structure with rC/rA = 0.414 is 0.68.
What is atomic packing factor?The atomic packing factor (APF) of a crystal structure is a measure of how closely packed the atoms are in the crystal lattice. It is calculated by dividing the total volume of all the atoms in the cell by the volume of the cell itself.
In the rock salt (NaCl) structure, rC (the radius of the chloride ion) is 0.414 times the radius of the sodium ion, rA. The APF for this structure is calculated as follows:
APF = (4 * (rA + rC)^3) / (a^3)
Where a is the lattice parameter of the crystal (the length of the side of the unit cell).
Plugging in the values, we get:
APF = (4 * (1.88 + 0.75)^3) / (5.64^3)
APF = 0.68
Therefore, the APF for the rock salt crystal structure with rC/rA = 0.414 is 0.68.
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The enthalpy changes of formation of gaseous ethene and gaseous ethane are 52 kJ mol-¹ and -85 kJ mol-¹ respectively
at 298 K What is the enthalpy change of reaction at 298 K for the
following process?
C₂H₂(g) + H₂(g) → C₂H6(g)
A-137 kJ mol-1
B -33 kJ mol-1
C +33 kJ mol-¹
D +137 kJ mol-¹
Gaseous ethane and ethene have formation enthalpies of 52 kJ mol-1 and -85 kJ mol-1 at 298 K, respectively. The process's endothermic reaction of reactions at 298 K is -137 kJ mol-1.
Why is ethene employed?Ethene is largely utilized as a monomer in the manufacture of plastics, to create other compounds, and as an industrial fuel gas worldwide. Ethene is used in Canada to mature bananas and some other tropical fruits after harvesting, as well as to level citrus.
How is ethene produced?Historically, hydrocarbons was used to produce ethylene, but natural gas is now being used more and more instead. Steam cracking, a procedure that decomposes petroleum through refining, is the main way to produce ethylene.
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using a ph meter, the ph of a clear solution was found to be 2.14. this solution can be classified as:
The PH at 2.14 upon using a ph meter of a clear solution, will be classified as an acidic solution.
What is a PH meter?An equipment called a pH metre is used to determine the acidity or alkalinity of a solution, commonly known as pH. The unit of measurement used to express how acidic or alkaline something is is called pH. It is rated from 0 to 14 on a scale. The pH value's quantitative data expresses the level of an acid or base's activity in terms of hydrogen ion activity. The ratio of the quantities of hydrogen ions (H+) and hydroxyl ions (OH-) determines a substance's pH value.
The pH of a clear solution found to be 2.14 using a pH meter, this solution can be classified as acidic. The pH scale ranges from 0 to 14. A pH of 7 is considered neutral, with anything below 7 being acidic, so a pH of 2.14 is highly acidic.
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scientist wants to make a solution of tribasic sodium phosphate, na3po4 , for a laboratory experiment. how many grams of na3po4 will be needed to produce 275 ml of a solution that has a concentration of na ions of 0.500 m ?
How much Na3PO4Na3PO4 is required to make 575 mLmL of the a solution with a 1.50 MM Na+Na+ ion concentration.
How are moles calculated?The symbol for the unit is mol.
The number of molecules ratio is written as follows.
Given.
The formula for moles is.
Mass of material / Mass from one mole equals the number of moles.
95 / 86.94 equals the number of moles.
How can you fix the limited reactant issue?By dividing the amount of each solutions by its molarity, you can figure out the molecular weight of each reactant. By dividing the amount of units of every reaction by its equimolar coefficient in the chemical equation, you may determine which chemical is the limiting one.
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Question 4 Status: Not yet answered I Points possible: 2.00 Determine the correct answers to the problems below and round to the required number of significant figures. Enter your answer in standard notation. 0.004911/3.87 = 4 x 6 =
The answer is 24, and it does not need to be rounded as it's already in standard notation.
The first problem is 0.004911/3.87 = 0.001268. So the answer should be 0.00127. The second problem is 4 x 6 = 24. Standard notation is a way of writing numbers in a standardized format. It involves writing numbers in a way that includes a number, a decimal point, and a set of digits to the right of the decimal point. The number of digits to the right of the decimal point represents the precision of the number. In scientific notation, numbers are written as a coefficient multiplied by a power of 10.
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complete this table relating the values of E°cell and δG° to k K E°cel .δG° <1 =1 >1
The relationship between the reaction quotient, electrochemical cell potential, temperature, and standard cell potential is established by the Nernst equation formula. Ecell equals E0 less (RT/nF) lnQ.
What is Nernst equation?The Nernst equation, a chemical thermodynamical relationship, is used in electrochemistry to determine a reaction's reduction potential from the standard electrode potential. The Nernst equation relates an atom's or ion's ability to absorb one or more electrons (reduction potential) measured under any conditions to that measured under standard conditions (standard reduction potentials) of 298 K and one molar or one atmospheric pressure. The relationship between the reaction quotient, electrochemical cell potential, temperature, and standard cell potential is established by the Nernst equation formula. Ecell equals E0 less (RT/nF) lnQ. Under unusual circumstances, the potential of the electrochemical cells can be determined using the Nernst distribution law.
Here,
The solution and the table is in image.
The Nernst equation formula establishes a relationship between the reaction quotient, electrochemical cell potential, temperature, and the standard cell potential. Ecell = E0 – (RT/nF) lnQ.
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A chemist breaks down a compound into 3.4 moles of carbon and 6.8 moles of oxygen. What is the percent composition by mass of each element in the compound?
The percent composition by mass of each element in the compound are 27% carbon, 73% oxygen.
What is the solution to percentage composition?Composition as a percentFind the compound's molar mass in grammes per mole for each element.Calculate the compound's overall molecular weight.Subtract the total molecular mass from the component's molar mass.The number you have now will be between 0 and 1. To obtain the composition in percent, multiply it by 100%.
The mass of an element in 1 mole of the compound is divided by the compound's molar mass, and the result is multiplied by 100 to determine the mass percent of the element in the compound.
3.4 moles of carbon / molar mass * 100 = 27% carbon
6.8 moles of oxygen / molar mass * 100 = 73%
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Consider this reaction occurring at 298 K: BaCO3(s) ⇌ BaO(s) + CO2(g)Substance ∆rH o / kJ mol–1 ∆rS o / J mol–1 K –1 BaCO3(s) –1213.0 112.1 BaO(s) –548.0 72.1 CO2(g) –393.5 213.8a. Using the information in the table above, show that the reaction is not spontaneous under standard conditions by calculating ∆rG o . {5 marks}b. If BaCO3 is placed in an evacuated flask, what partial pressure of CO2 will be present when the reaction reaches equilibrium? {3 marks}c. Can the reaction be made more spontaneous by an increase or decrease in temperature? If so, what temperature is required to make the reaction spontaneous under standard conditions? {3 marks}d. What temperature is required to produce a carbon dioxide partial pressure of 1.5 bar? {3 marks}
-1398.7 kJ/mol is ∆rG o is negative, the reaction is not spontaneous under standard conditions for given reaction.
What is equilibrium?Equilibrium is a state of balance in which all forces and influences are equal. It is a state of rest or balance due to the equal action of opposing forces. In economics, equilibrium is a state in which the market price of a good or service is stable and no tendency to change. This occurs when there is no excess demand or supply, and all participants in the market have perfect information.
a. ∆rG o = ∆rH o - T∆rS o
∆rG o = -1213.0 kJ/mol - (298 K)(112.1 J/mol K) = -1398.7 kJ/mol
b. When the reaction reaches equilibrium, the partial pressure of CO2 will be equal to zero, as the reaction is not spontaneous under standard conditions, and therefore no CO2 will be produced.
c. The reaction can be made more spontaneous by decreasing the temperature. The temperature required to make the reaction spontaneous under standard conditions can be calculated by setting ∆rG o to zero and solving for T.
d. To produce a carbon dioxide partial pressure of 1.5 bar, the reaction must be forced to proceed in the reverse direction, i.e the reaction must be made non spontaneous.The increase in temperature is necessary to do this. We can use the equation ∆rG o = ∆rH o - T∆rS o and plug in the values of ∆H o, ∆S o and P to solve for T.
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true/false. The lag of the maximum is exhibited when: the maximum temperature during a year does not occur until autumn. the highest levels of solar radiation are not received until late afternoon. the warmest annual mean temperature occurs in the year following maximum CO2 emissions. the maximum temperature for the day occurs several hours after maximum solar radiation receipt.
The highest temperature during the day occurs many hours after the maximum solar radiation receipt, which illustrates the greatest lag.
Where in India is the temperature the highest?
Sri Gangapur. This city, located at an altitude of 178 metres in Jaipur, the largest state in the nation, has India's highest temperature. The highest temperature ever measured there was 50 degrees Celsius.
What's the maximum temperature a person can withstand?
Death will almost likely occur at 46 °C (111.2 °F) or higher, but people have been reported to live up to 43 °C (115.7 °F). Normal death occurs at 43 °C (109.4 °F), but there is also a chance of major brain injury, ongoing convulsions, and shock.
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how much heat in kj is produced when 2.5 mol of fe3o4 reacts with excess al? 3 fe3o4(s) 8 al(s)
-6278 kJ of heat is produced when 2.5 mol of fe3o4 reacts with excess Al. For the equation 3 Fe3O4(s) + 8 Al(s) → 9 Fe(s) + 4 Al2O3(s).
The heat produced when 2.5 mol of Fe3O4 reacts with excess Al can be determined by using the balanced equation for the reaction and the appropriate enthalpy values.
The balanced equation for the reaction is:
3 Fe3O4(s) + 8 Al(s) → 9 Fe(s) + 4 Al2O3(s)
The enthalpy change for the reaction is the sum of the enthalpies of formation of the products minus the sum of the enthalpies of formation of the reactants. ΔH = [9(ΔHf of Fe(s)) + 4(ΔHf of Al2O3(s))] - [3(ΔHf of Fe3O4(s)) + 8(ΔHf of Al(s))]
Using the standard enthalpies of formation, ΔHf of Fe3O4=-824.2 kJ/mol, ΔHf of Fe=-44.1 kJ/mol, ΔHf of Al2O3=-1675.9 kJ/mol, ΔHf of Al=-1675.9 kJ/mol
ΔH = [9(-44.1 kJ/mol) + 4(-1675.9 kJ/mol)] - [3(-824.2 kJ/mol) + 8(-1675.9 kJ/mol)]
ΔH = -2511.2 kJ/mol
Therefore, the heat produced when 2.5 mol of Fe3O4 reacts with excess Al is -2511.2 kJ/mol * 2.5 mol = -6278 kJ
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In a reaction mixture containing only reactants, what is the value of Q?
a. -1
b. 1
c.
[infinity]
d. 0
e. It cannot be determined without concentrations
The value of Q in a reaction mixture containing just reactants is 0. Thus, the correct answer is D.
In a reaction mixture containing only reactants, the value of Q (the reaction quotient) is 0. This is because Q is defined as the product of the concentrations (or pressures, in the case of gases) of the products raised to their stoichiometric coefficients, divided by the product of the concentrations (or pressures) of the reactants raised to their stoichiometric coefficients.
At the start of a reaction, when only reactants are present, the concentrations (or pressures) of the products are 0, so any value raised to the power of 0 is equal to 0. As a result, the numerator of the Q expression is equal to 0, and the result of division by anything is always 0.
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morphine is administered as the hydrochloride salt. adapt the structure below in the blue box to show the hcl salt. explain why the hydrochloride salt is used in the green box.
It is possible to obtain morphine as a hydrochloride salt. Morphine is present in it. opium's main alkaloid and the original narcotic and analgesic opiate, morphine. Both central nervous system & smooth muscle are just two areas where morphine has wide-ranging effects.
Hydrochloride morphine: what is it?a medication for the management of moderate to extreme pain. Certain kinds of coughs may also be treated with it. With the help of opiate receptors within the central nervous system, morphine is converted into hydromorphone hydrochloride. It is both a kind of analgesic and an opioid.
What is morphine called?The class of drugs known as narcotic analgesics includes morphine (pain medicines). It alleviates pain by acting just on central nervous system (CNS).
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What is the Celsius temperature of 100.0 g of chlorine gas in a 35.0 L container at 800 mmHg?
a. 159 ∘C
b. 46 ∘C
c. 318 ∘C
d. -114 ∘C
100.0 g liquid chlorine gas at 800 mmHg has a temperature of 46 C in a 35.0 L container.
Chlorine gas toxicity: how toxic is it?Low levels of chlorine exposure (between 1 and 10 ppm) might irritate the eyes, nose, and throat and make you cough and painful. Acute respiratory discomfort with airway constriction that fluid buildup in the lungs can quickly result from breathing in chlorine gas at higher quantities (>15 ppm).
Is chlorine gas safe to breathe?Pulmonary edema, a condition brought on by inhaling a lot of chlorine, is a fluid buildup in the lungs. For a number of hours following chlorine exposure, the onset of pulmonary congestion may be postponed. The skin and eyes may freeze when exposed to compressed liquid chlorine.
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Aluminum reacts with oxygen to produce aluminum oxide. Write an unbalanced formula equation including physical states for the reaction.
Answer:
Al+O2=Al2O
Explanation:
Aluminum is a metal which is part of the group one elements hence given a valence 1 and since gases are known to be diatomic molecules hence the valence 2..
Am just trying am also a student
