A concentration of at least 1.7 x 10⁻⁵ M of Ag⁺ ions is required for the formation of a precipitate in 1.0 x 10⁻⁵ M NaCl solution.
Concentration refers to the amount of solute dissolved in a solvent, typically expressed in units of moles per liter (M).
The solubility product expression for AgCl is;
Ksp = [Ag⁺][Cl⁻]
We can assume that the concentration of Cl⁻ ions is equal to the initial concentration of NaCl, which is 1.0 x 10⁻⁵ M.
Therefore, we will rearrange the equation to solve for [Ag⁺];
[Ag⁺] = Ksp / [Cl⁻]
= (1.7 x 10⁻¹⁰) / (1.0 x 10⁻⁵)
= 1.7 x 10⁻⁵ M
Therefore, the concentration of silver ions is 1.7 x 10⁻⁵ M required.
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A shark can swim for long periods of time with an average speed of 2.2 m/s. How far would a shark swim at this speed in 42.4 minutes?
Answer:
5596.8 m
Explanation:
42.4 minutes is equal to 2544 seconds.
2544s * 2.2m/s= 5596.8
How many of phosphorus atoms are present in 6 formula units of copper (II)
phosphate, Cu3(PO4)2?
A. 3. 61 x1024
B. 6
C. 12
D. 2
There are 12 phosphorus atoms present in 6 formula units of copper (II) phosphate.
Option C is correct.
To determine the number of phosphorus atoms in 6 formula units of copper (II) phosphate (Cu₃(PO₄)₂), we need to analyze the chemical formula.
In one formula unit of (Cu₃(PO₄)₂), we have:
3 copper atoms (Cu)
2 phosphate ions (PO4)
Each phosphate ion (PO₄) contains one phosphorus atom (P). Therefore, in 6 formula units of (Cu₃(PO₄)₂), we would have 6 * 2 = 12 phosphate ions.
Since each phosphate ion contains one phosphorus atom, the number of phosphorus atoms would also be 12.
Therefore, the correct answer is C. 12.
This calculation is based on the stoichiometry of the compound, which determines the ratio of elements in a chemical formula.
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The nuclear reaction process of converting hydrogen nuclei into helium nuclei is called the ________ chain.
The nuclear reaction process of converting hydrogen nuclei into helium nuclei is called the proton-proton chain.
The proton-proton chain is the primary nuclear reaction process that powers the Sun and other main-sequence stars. It involves the fusion of hydrogen nuclei (protons) to form helium nuclei. The chain consists of several steps, each involving different nuclear reactions.
In the first step of the proton-proton chain, two protons (hydrogen nuclei) come together through the strong nuclear force to form a deuterium nucleus (one proton and one neutron). This step releases a positron and a neutrino as byproducts. In the next step, the deuterium nucleus combines with another proton to form a helium-3 nucleus. This step releases a gamma ray.
The final step of the proton-proton chain involves the fusion of two helium-3 nuclei to produce helium-4 (two protons and two neutrons). This step releases two protons, which can then continue to participate in further reactions. Overall, the proton-proton chain converts four hydrogen nuclei into one helium nucleus, releasing a tremendous amount of energy in the process.
The proton-proton chain is essential for the sustained energy output of stars like the Sun. Without this chain reaction, stars would not be able to generate the immense heat and light that they emit. Understanding the proton-proton chain and other nuclear reactions is crucial for studying stellar evolution and the processes that govern the energy production within stars.
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Set up and solve a system of linear equations to balance the
following chemical reaction:
Limestone, CaCO3, neutralizes the acid, H3O, in acid rain by the
following unbalanced equation:
H3O + CaCO3 yields
→ H2O+Ca+CO2
A system of linear equations to balance the following chemical reaction:
Limestone, CaCO₃, neutralizes the acid, H₃ O, in acid rain is:
2H₃O + CaCO₃ → 3H₂O + Ca + CO₂
To balance the chemical equation:
H₃O + CaCO₃ → H₂O + Ca + CO₂
We need to ensure that the number of atoms of each element is the same on both sides of the equation.
Let's assign variables to the coefficients of each compound:
H₃O: x
CaCO₃: y
H₂O: z
Ca: a
CO₂: b
Now, we can set up the system of equations based on the number of atoms for each element:
For hydrogen (H):
3x = 2z
For oxygen (O):
3x + 3y = 2z
For calcium (Ca):
y = a
For carbon (C):
y = b
For calcium (Ca):
a = 1
Solving this system of equations will give us the balanced coefficients. Let's solve it:
From the equation y = a, we have y = 1.
From the equation y = b, we have b = 1.
Substituting b = 1 into the equation 3x + 3y = 2z, we have:
3x + 3 = 2z
From the equation 3x = 2z, we have x = (2/3)z.
Substituting x = (2/3)z into the equation 3x = 2z, we have:
3(2/3)z = 2z
2z = 2z
This equation is true for any value of z, indicating that z can take any value.
Therefore, we can choose z = 3 to simplify the coefficients:
x = (2/3)z = (2/3)(3) = 2
y = 1
z = 3
a = 1
b = 1
Thus, the balanced equation is:
2H₃O + CaCO₃ → 3H₂O + Ca + CO₂
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Draw (on paper) a Lewis diagram for CH3CH2CH2OH
Use your diagram to answer the following questions.
The number of C-H bonds =
The number of O-H bonds is
The number of C-C single bonds =
The number of C-O single bonds =
The total number of lone pairs =
The structure of ethanol is shown below. As a result, the molecule CH3CH2OH C H 3 C H 2 O H is polar. Both a Lewis acid and a Lewis base, CH3CH2OH C H 3 C H 2 O H, can function.
Due to the oxygen atom's lone pair of electrons, it is primarily a Lewis base. The most polar of these is the O-H bond. The difference in electronegativity between the two atoms involved can be used to explain it. Ethanol, with the chemical formula CH3 CH2 OH, contains hydrogen bonds. Covalent bonds between hydrogen atoms produce hydrogen bonds. However, CH3CH2OH alone displays hydrogen bonding, which is substantially stronger than the intermolecular forces that are present in the other options.
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Using the Lewis diagram, I was able to determine that: 1) there are 7 C-H bonds, 2) there are 1 O-H bonds, and 3) The C-C bond count is 2, 4) The C-O bond count is 1, 5) There are 2 lone pairings.
Lewis diagram, often referred to as Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDS), are diagrams that depict the interactions of atoms in molecules as well as any lone pairs of electrons that may be present. Any covalently bound molecule, as well as coordination compounds, can be represented by a Lewis structure. Gilbert N. Lewis introduced the Lewis structure in his 1916 essay The Atom and the Molecule, and it bears his name. By adding lines between atoms to indicate shared pairs in a chemical bond, Lewis structures expand on the idea of the electron dot diagram.
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liquid nonane (c9h20) reacts with gaseous oxygen to form gaseous carbon dioxide and liquid water. express your answer as a chemical equation. identify all of the phases in your answer.
The chemical equation for the reaction between liquid nonane and gaseous oxygen is: C9H20 (l) + 14 O2 (g) → 9 CO2 (g) + 10 H2O (l)
The phases in the equation are:
- (l) for liquid nonane and liquid water
- (g) for gaseous oxygen and gaseous carbon dioxide.
When liquid nonane (C9H20) reacts with gaseous oxygen (O2) to form gaseous carbon dioxide (CO2) and liquid water (H2O), the balanced chemical equation can be expressed as:
C9H20(l) + 14O2(g) → 9CO2(g) + 10H2O(l)
In this equation, the phases are as follows:
- Liquid nonane (C9H20): liquid (l)
- Oxygen (O2): gas (g)
- Carbon dioxide (CO2): gas (g)
- Water (H2O): liquid (l)
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often, right after titrant is added, the drop turns dark pink then disappears after swirling. is the following explanation for this phenomenon true or false? the localized concentration of base from the droplet is higher than the rest of the solution. this causes the indicator to turn pink in that area. after swirling the base disperses and the concentration is constant for the entire solution in the flask, causing the color to change back from pink to colorless.
True. The localized concentration of base from the droplet is higher than the rest of the solution, which is why the indicator turns pink. This phenomenon is known as titration.
Titration or volumetric analysis is a quantitative analytical method used to determine the concentration of a solution of an unknown substance by reacting it with a solution of a known concentration.
Titration includes a controlled reaction between the solution to be tested (the analyte) and the standard solution, which is the titrant. The titrant is typically used to measure the concentration of acids and bases in a sample of a solution.
In a titration, the base or the acid is slowly added to the unknown acid or base, the two are then reacted to form water and salt. The indicator is colorless or a pale color when the titrant is added to the unknown solution.
As the reaction between the titrant and the unknown solution proceeds, the titrant is added dropwise.
If the indicator is added too soon or too much, the solution turns dark pink, as the concentration of the base from the droplet is higher than the rest of the solution.
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Mr. Whiteman has two stock solutions of sulfuric acid (H2SO4) in the supply closet: 12.1 M and 6.0 M. If he wants to make 10.0 mL of a 1.0 M solution, which stock solution makes more sense to use? Justify with two calculations.
Answer:
12.1-M requires less volume of stock solution.
Explanation:
Hello there!
In this case, according to the foundations of dilution processes, it turns out convenient to remember that the moles of the solute before and after the dilution remains the same; for that reason we use the following equation:
\(M_1V_1=M_2V_2\)
Relating the initial and final molarities and volumes. Now, it is seen that V2 is 10.0 mL and M2 is 1.0 M, which means that if we solve for V1 for 12.1 M and 6.0 M, we obtain the following volumes:
\(V_1=\frac{M_2V_2}{M_1} \\\\V_1^{12.1M}=\frac{1.0M*10.0 mL}{12.1M}=0.826mL\\\\V_1^{6.0M}=\frac{1.0M*10.0 mL}{6.0M}=1.67mL\)
Therefore, since the 12.1-M solution requires less volume of stock solution, it makes sense to use this one as the initial solution.
Best regards!
how much water will you need to add to your working solution to get to a 100 ml total volume of a 0.03m nacl solution?
Answer:
The solution is made by adding 4.38 g NaCl to a 250-mL volumetric flask. About 100 mL of water are added and when all the NaCl dissolves water is added up ...
what is the poh of a 0.0055 m ba(oh)2 solution?
The pH of a 0.0055 m Ba\((OH)_{2}\) solution is 9.48. To calculate this, we can use the Henderson-Hasselbalch equation: pH = pKa + log([A-]/[HA]). The pKa for Ba\((OH)_{2}\) is 10.20, [A-] is 0.0055, and [HA] is 0.0055. Plugging this into the equation, we get pH = 10.20 + log(0.0055/0.0055), which simplifies to pH = 9.48.
The pOH of a 0.0055 M Ba\((OH)_{2}\) solution can be determined by calculating the concentration of hydroxide ions (OH-) and then using the equation pOH = -log[OH-].
First, we need to determine the concentration of hydroxide ions in the solution. Since Ba\((OH)_{2}\) is a strong base, it will dissociate completely in water to form \(Ba^{2+}\) and 2OH- ions. This means that for every 1 mole of Ba\((OH)_{2}\) there will be 2 moles of OH- ions. Therefore, the concentration of OH- ions in the solution will be:
[OH-] = 2 x 0.0055 M = 0.011 M
Next, we can use the equation pOH = -log[OH-] to calculate the pOH of the solution:
pOH = -log[0.011] = 1.96
Therefore, the pOH of the 0.0055 M Ba\((OH)_{2}\) solution is 1.96.
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A gas mixture contains each of the following gases at the indicated partial pressure. N2 219 torr O2 106 torr He 244 torr What is the total pressure of the mixture? Express your answer in torr to three significant figures.
In this case, the partial pressures of nitrogen (N2), oxygen (O2), and helium (He) are given as 219 torr, 106 torr, and 244 torr, respectively. The total pressure of the gas mixture is 569 torr.
The total pressure of a gas mixture is the sum of the partial pressures of its individual components. In this case, the partial pressures of nitrogen (N2), oxygen (O2), and helium (He) are given as 219 torr, 106 torr, and 244 torr, respectively.
To find the total pressure, we simply add these partial pressures together:
Total pressure = Partial pressure of N2 + Partial pressure of O2 + Partial pressure of He
= 219 torr + 106 torr + 244 torr
= 569 torr
Therefore, the total pressure of the gas mixture is 569 torr.
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What is the percent change when an iodine atom (I) becomes an ion (I-)?
Balance the equation choose the coefficient for blank 3 (in front of KBr)___ KOH + ___ HBr --> ___ KBr + ___ H2O
Balancing the equation :
KOH(aq) + HBr(aq) --> KBr(aq) + H2O(l)
This is the balanced chemical reaction because it follows the following ionic reaction:
H ^(aq)+ + Br^(aq)- + K^+(aq) + OH ^- (aq) → K^+(aq) + Br^-(aq) + H2O (l)
Two representations of the distribution of electrons in the potassium atom are shown. Model 1 Model 2 1s22s22p63s23p64s1 An orange circle labeled upper K is surrounded by four concentric circles. The innermost circle has dots at the north and south positions. The second and third circles have eight dots, equally spaced, with dots aligning with those on the inner ring. The outer ring has one dot at the north position. Which model is useful in showing the reactivity of potassium?
Answer:
The answer is: both models because each shows an electron in the outermost shell.
Explanation:
In the given scenario, both the models are satisfactory as they show the valence electrons, and these valence electrons indicate the reactivity of an element. The correct option is D.
What are valance electrons?A valence electron is an electron in the external shell of an atom that can contribute to the establishment of chemical bonds.
It is evident that model 1 and model 2 have the same electronic configuration for potassium.
The reactivity of potassium is due to the presence of one electron in the outer edge valence shell.
Thus, the correct option is D.
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The missing options of the question are:
Neither model is able to show the reactivity of potassium.Model 1 because it shows an electron in the 4s orbital.Model 2 because it shows an electron in the outermost ring.Both models because each shows an electron in the outermost shell.What property determines whether an acid is a strong acid or a weak acid?
The dissociation of the ions
The total number of molecules
The pH of the acid
Answer:
the pH of the acid is the property that determines whether an acid is a strong acid or a weak acid
Most reactions are carried out in liquid solution or in the gaseous phase because in such situations
A) activation energies are higher.
B) it is easier for reactants to come in contact with each other.
C) kinetic energies of reactants are lower.
D) products are less apt to decompose.
Most reactions are carried out in liquid solution or in the gaseous phase because it is easier for reactants to come in contact with each other. Thus, option B is correct.
A gaseous phase is a type of phrase that refers to the state of matter in which gas molecules occupy space. They are highly compressible and highly expandable. In a gaseous state, the gas molecules are in motion and may disperse uniformly in a container.
When compared to the solid and liquid phases, the gaseous phase is much lighter. The forces acting between the gas molecules are relatively small, allowing them to disperse and fill the whole available space. It is easier for reactants to come in contact with each other in a liquid solution or in the gaseous phase.
The main reason for this is that the molecules in the gaseous state are highly separated and possess a huge amount of kinetic energy, which allows them to move around quickly. Thus, option B is correct.
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How do the following changes affect the value of the equilibrium constant for a gas-phase exothermic reaction: Drag the appropriate items to their respective bins. Reset Help addition of a catalyst decrease in the temperature removal of a product decrease in the volume removal of a reactant Increase equilibrium constant Decrease equilibrium constant No effect on equilibrium constant
The following changes affect the value of the equilibrium constant for a gas-phase exothermic reaction:
Addition of a catalyst- Increase equilibrium constant
Decrease in the temperature - Decrease equilibrium constant
Removal of a product- No effect on equilibrium constant
Decrease in the volume- Decrease equilibrium constant
Removal of a reactant- Decrease equilibrium constant
Define exothermic process
An exothermic process in thermodynamics is a thermodynamic process or reaction that releases energy from the system to its surroundings, typically in the form of heat but occasionally in the form of light (such as a spark, flame, or flash), electricity (such as from a battery), or sound (such as the explosion produced by the burning of hydrogen).
The relationship between a reaction's products and reactants with regard to a certain unit is expressed by the equilibrium constant, K. The equilibrium constant is temperature-dependent and unaffected by the precise ratios of reactants to products, the presence of a catalyst, or the presence of inert substances. Additionally, it is unaffected by the volumes, pressures, and concentrations of the reactants and products.
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20 .. 9. Calculate the value of ~S if one mole of an ideal gas is expanded reversibly and isothermally from 1.00 bar to 0.100 bar. Explain the sign of ~S.
The sign of ~S is positive, indicating that the entropy of the system is increasing. This is expected for an isothermal expansion of an ideal gas.
The equation to calculate the entropy change (~S) for an isothermal expansion of an ideal gas is:
~S = nR ln(V2/V1)
where n is the number of moles, R is the gas constant, V2 is the final volume, and V1 is the initial volume.
In this case, we are given that n = 1 mole, V1 = P1/P2 = 1.00 bar/0.100 bar = 10 L (using the ideal gas law), and V2 = 100 L (since the gas is expanding from 10 L to 100 L).
Plugging these values into the equation, we get:
~S = (1 mol)(8.314 J/mol-K) ln(100/10) = 18.8 J/K
The sign of ~S is positive, indicating that the entropy of the system is increasing. This is expected for an isothermal expansion of an ideal gas, since the gas molecules are spreading out into a larger volume, increasing the number of microstates available to the system and thus increasing its entropy.
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What pillar of sustainability is broken by recycling
electronics in India? Should the US make a law that electronics can
only be recycled in the US?
The pillar of sustainability broken by recycling electronics in India is environmental sustainability. Implementing a law that restricts electronics recycling to the US would not necessarily be the most effective solution, as it overlooks the complex global dynamics of electronic waste management.
Recycling electronics in India often involves improper disposal methods, such as burning or dismantling without proper safety measures. This leads to environmental pollution, including the release of hazardous substances into the air, soil, and water, thus violating the principle of environmental sustainability.
However, simply mandating that electronics can only be recycled in the US may not be the most optimal solution. Electronic waste is a global issue, and restricting recycling to a single country disregards the fact that electronic products are manufactured and consumed worldwide. A more comprehensive approach to addressing electronic waste would involve international cooperation, strict regulations, and monitoring of recycling practices to ensure they meet environmental standards.
Efforts should focus on improving recycling practices globally, including promoting responsible electronic waste management, developing sustainable recycling infrastructure in multiple countries, and encouraging the adoption of safe and environmentally friendly recycling practices. This approach would foster global sustainability and address the challenges associated with electronic waste disposal more effectively than a geographically limited restriction.
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In the given three dimensional molecular structure the differently colored spheres represent different types of atoms. Write a molecular formula for this model
Answer: penlalalalaooooaaaaaaaaaaa
Explanation: pen
The National Stock Number (NSN) test search is used to locate test reports and Special Packaging Instructions (SP) on which of the following?
The NSN test search is used to locate test reports that provide comprehensive information about the testing and evaluation of specific products or items.
The National Stock Number (NSN) test search is used to locate test reports on various products or items. Test reports provide detailed information about the testing and evaluation of a particular product's performance, quality, safety, or compliance with specific standards or requirements. These reports are often conducted by independent testing laboratories or organizations to assess the characteristics and capabilities of the product.
The NSN test search allows users to search for test reports based on the NSN, which is a unique identification number assigned to each item in the federal supply system. By inputting the NSN into the search, individuals or organizations can access relevant test reports associated with that specific item or product.
The test reports obtained through the NSN test search can be valuable for various purposes, such as quality assurance, product development, procurement decisions, or regulatory compliance. They provide important insights into the performance and reliability of the item being tested, allowing users to make informed decisions based on objective evaluation and testing data.
In summary, the NSN test search is used to locate test reports that provide comprehensive information about the testing and evaluation of specific products or items.
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All organisms need glucose, or a source of ???? To carry out basic life functions
Which group has the greatest number of valence electrons?
Answer:
chlorine
General Electronic configuration of the group number 2 elements is, . General Electronic configuration of the group number 17 elements is, . From this we conclude that the chlorine is the element which has the greatest number of valence electrons available for bonding. Hence, the correct option is, Chlorine
Explanation:
Explanation:
group 18
MARK AS BRAINLIST ANSWER PLEASE
when the following solutions are mixed together, what precipitate (if any) will form? a. feso4(aq) 1 kcl(aq)
Since all of the reactants and products are soluble in water, no precipitate is produced.
What is the solution?
A solution is a specific kind of homogeneous mixture made up of two or more substances that are used in chemistry. A solute is a substance that has been dissolved in a solvent, which is the other substance in the mixture.
The positive and negative ions of two ionic compounds swap positions during a double-replacement reaction to create two new compounds. An example of a double-replacement reaction, also known as a double-displacement reaction, is:
AB+CD→AD+CB
A and C are positively charged cations in this reaction, whereas B and D are negatively charged anions. In an aqueous solution, double-replacement reactions typically take place between substances. A reaction must produce one of the following in order to take place: a solid precipitate, a gas, or a molecular compound like water.
The reaction Iron (II) Sulfate and potassium chloride is
FeSO₄ + 2KCl → FeCl₂ + K₂SO₄
Both FeCl₂ and K₂SO₄ are liquid form.
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how much volume does a 3.2 M solution of NaCl occupy with 50 moles of NaCl in solution?
Answer:
data given
molarity 3.2m
moles 50mol
Required volume
Explanation:
from
molarity =mole/volume
3.2=50/v
v=15.62
:.volume is15.62dm^3
What efforts do doctors and engineers have to take in oder to be both accurate and precise
To be both accurate and precise, doctors and engineers need to follow strict protocols and procedures, pay attention to details, and use high-quality equipment and tools.
They also need to continuously update their knowledge and skills to stay current with the latest advancements in their field. Additionally, they should communicate clearly and effectively with their colleagues and clients to ensure that everyone involved understands the procedures and results accurately.
Finally, they must be diligent in record-keeping to ensure that all information is organized and easy to access.
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Ripening is a _______________ and spoiling is a ______________.
A. Chemical reaction, chemical reaction.
B. Physical reaction, chemical reaction.
C. Physical reaction, physical reaction.
D. Chemical reaction, physical reaction.
Answer:
A
Explanation:
The answer to this question is A. Both ripening and spoiling are chemical reactions.
Spoiling is a chemical reaction because spoiled food has bad smell and taste and it changes colour too.
Ripening of fruits is a chemical change. For example the colour could change as well as the texture.
Answer:
option a) chemical reaction, chemical reaction.
Explanation:
Changes in which new substances with different properties are formed are called chemical changes. Cooking of food, burning of substances are chemical changes as entirely new substances are formed. Burning of a candle wax releases carbon dioxide and water vapour (new substances). in here ripening and spoiling is a change that cannot be reversed which makes it a chemical change.
Chemical Reactions - Problems
4 NH, +5 O, → 4 NO+6H_O
Which of the following are the reactants in the reaction above?
NH,
NO
I
H₂O
Submit v
IT
What is the vapor pressure of a solution with a benzene to octane molar ratio of 2:1? Vapor pressure at 50 C of benzene is 280 mmHg and of octane is 400 mmHg.
The vapor pressure of a solution can be determined using Raoult's law. We find that the vapor pressure of the solution is 320 mmHg.
Raoult's law states that the vapor pressure of a component in a solution is directly proportional to its mole fraction in the solution. In this case, we are given the molar ratio of benzene to octane in the solution, which is 2:1.
The mole fraction (X) of a component is defined as the ratio of the number of moles of that component to the total number of moles in the solution.
Let's assume we have 2 moles of benzene and 1 mole of octane. The total number of moles in the solution would be 2 + 1 = 3 moles. Therefore, the mole fraction of benzene would be 2/3, and the mole fraction of octane would be 1/3.
According to Raoult's law, the vapor pressure of the solution (Psolution) can be calculated by adding the vapor pressure of each component multiplied by its mole fraction:
Psolution = Xbenzene * Pbenzene + Xoctane * Poctane
Given that the vapor pressure of benzene (Pbenzene) is 280 mmHg and the vapor pressure of octane (Poctane) is 400 mmHg, we can substitute these values into the equation: Psolution = (2/3) * 280 + (1/3) * 400
Simplifying the equation, we get:
Psolution = 560/3 + 400/3
= 960/3
= 320 mmHg
Therefore, the vapor pressure of the solution with a benzene to octane molar ratio of 2:1 is 320 mmHg.
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Question: What is the coefficient for OH−(aq) when MnO4−(aq) + Fe2+(aq) → Mn2+(aq) + Fe3+(aq) is balanced in basic aqueous solution?
In the balanced equation for the reaction\(MnO_{4}^-(aq) + Fe_{2} ^+(aq) -- > Mn_{2}^+(aq) + Fe_{3}^+(aq)\) in basic aqueous solution, the coefficient for OH−(aq) is 4.
To balance the given equation in basic aqueous solution, we need to ensure that the number of atoms of each element is equal on both sides of the equation and that the overall charge is balanced. Here's how the equation is balanced:
First, we balance the atoms other than hydrogen and oxygen. The equation becomes:
\(MnO_{4}^-(aq) + 5Fe_{2} ^+(aq)+8H_{2}O(l) -- > Mn_{2}^+(aq) +5 Fe_{3}^+(aq)\)
Next, we balance the oxygen atoms by adding water molecules (H2O):
\(MnO_{4}^-(aq) + 5Fe_{2} ^+(aq)+8H_{2}O(l) -- > Mn_{2}^+(aq) +5 Fe_{3}^+(aq)+4H_{2}O(l)\)
Now, we balance the hydrogen atoms by adding OH−(aq) ions:
\(MnO_{4}^-(aq) + 5Fe_{2} ^+(aq)+8H_{2}O(l) -- > Mn_{2}^+(aq) +5 Fe_{3}^+(aq)+4H_{2}O(l)+4OH^-(aq)\)
Therefore, in the balanced equation, the coefficient for OH−(aq) is 4. This balances the hydrogen atoms and ensures that the equation is balanced in basic aqueous solution.
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