5.0 Mol Al reacts with 6.0 mol O2 to form Al2O3. How many moles of Al2O3 form when 6.0 mol O2 are used up?

Answer:

CH4

Explanation:

The theoretical yield of [tex]NH_4NO_3[/tex] in grams is 52,856 g or 52.9 kg.

To determine the theoretical yield of the limiting reactant in grams, we need to follow these steps:

Calculate the moles of each reactant using the ideal gas law: PV = nRT, where P is pressure, V is volume, n is moles, R is the gas constant, and T is the temperature in Kelvin.

For nitrogen gas (N2):

n = PV/RT = (1 atm) * (16608 L) / [(0.08206 L atm/mol K) * (293.15 K)] = 660.5 mol

For oxygen gas (O2):

n = PV/RT = (1 atm) * (7.2123 L) / [(0.08206 L atm/mol K) * (293.15 K)] = 0.2876 mol

For water (H2O):

n = PV/RT = (1 atm) * (7.2310 L) / [(0.08206 L atm/mol K) * (293.15 K)] = 0.2891 mol

Determine the limiting reactant by comparing the moles of each reactant to the stoichiometry of the balanced chemical equation. We can see from the equation that 2 moles of N2 react with 1 mole of O2 and 4 moles of H2O, so the mole ratio of N2 to O2 is 2:1 and the mole ratio of N2 to H2O is 2:4 or 1:2. Therefore, N2 is the limiting reactant since it has the smallest number of moles.

Calculate the moles of [tex]NH_4NO_3\\[/tex] produced by using the mole ratio between N2 and [tex]NH_4NO_3[/tex]. From the balanced chemical equation, we see that 2 moles of N2 produce 2 moles of[tex]NH_4NO_3[/tex]. Therefore, the number of moles of [tex]NH_4NO_3[/tex] produced is equal to the number of moles of N2:

moles of [tex]NH_4NO_3[/tex]= 660.5 mol

Convert the moles of [tex]NH_4NO_3[/tex] to grams using its molar mass. The molar

mass of NH₄NO₃ is 80.0434 g/mol.

mass of NH₄NO₃ = moles of NH4NO3 x molar mass of NH4NO3

mass of NH₄NO₃ = 660.5 mol x 80.0434 g/mol

mass of NH₄NO₃ = 52,856 g or 52.9 kg

Therefore, the theoretical yield of NH₄NO₃ in grams is 52,856 g or 52.9 kg.

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The pH of the solution after 0.028 moles of Ba(OH)2 are added to 0.62L of the buffer solution containing 0.18M of base B and 0.48M of its conjugate acid BH is 8.89. To calculate the pH, you need to use the Henderson-Hasselbalch equation: pH = pKa + log ([B]/[BH]).

First, calculate the total moles of B and BH by adding 0.028 moles of Ba(OH)2 to 0.62L of the original buffer solution, then use the equation to calculate the pH. Here are the steps:

1. Calculate the total moles of B and BH after 0.028 moles of Ba(OH)2 are added.

Total moles of B = 0.18 + (0.028 / 2) = 0.194

Total moles of BH = 0.48 + (0.028 / 2) = 0.508

2. Calculate the pH using the Henderson-Hasselbalch equation.

pH = pKa + log ([B]/[BH])

pH = 8.91 + log (0.194/0.508)

pH = 8.89

Therefore, the pH of the solution after 0.028 moles of Ba(OH)

are added to 0.62L of the buffer solution is 8.89.

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As an AI, I will provide the best answer based on the given question and I will not exceed 200 words.The magnitude of the magnetic force experienced by proton 2 is less than the force experienced by proton 1. The explanation for this statement is option (a) Proton 1 experiences the greater force because it moves at right angles to the magnetic field.What is the Magnetic Force?

The force that is exerted on a charged particle that is moving in a magnetic field is referred to as the magnetic force. When a particle moves in a magnetic field, it experiences a force. This is due to the interaction between the magnetic field and the moving charge. In order to understand the effect of a magnetic field on a moving charged particle, it is necessary to first understand the nature of a magnetic field. Magnetic fields are caused by the motion of charged particles. These fields are invisible, but they can be detected with the help of a magnet.The magnetic force on a charge particle is given by:F=qvBsinθwhere,F is the magnetic force q is the charge of the particlev is the velocity of the particleB is the strength of the magnetic fieldθ is the angle between the velocity of the particle and the direction of the magnetic field.When the particle is moving perpendicular to the magnetic field, the angle between the velocity of the particle and the direction of the magnetic field is 90 degrees. The force acting on the particle is then maximum. If the particle moves parallel to the magnetic field, the angle between the velocity of the particle and the direction of the magnetic field is 0 degrees. The force acting on the particle is then zero.The magnitude of the magnetic force experienced by proton 2 is less than the force experienced by proton 1. This is because proton 2 moves in the same direction as the magnetic field, whereas proton 1 moves at right angles to the magnetic field. When a charged particle moves in the same direction as the magnetic field, it experiences very little magnetic force. Therefore, the magnitude of the magnetic force experienced by proton 2 is less than the force experienced by proton 1.

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Answer:

To solve this problem, we can use the combined gas law, which states that (P1 * V1) / T1 = (P2 * V2) / T2, where P is pressure, V is volume, and T is temperature in kelvins.

First, we need to convert the temperatures from Celsius to kelvins by adding 273.15. So -20°C is equivalent to 253.15 K and 90°C is equivalent to 363.15 K.

Plugging in the known values into the combined gas law formula, we get:

(760 * 48) / 253.15 = (740 * V2) / 363.15

Solving for V2, we find that the final volume of the hydrogen gas is approximately 53.7 L.

The density of materials is influenced by the arrangement of their molecules and how well they can pack together. HDPE and LDPE have the same chemical composition, but their densities differ due to differences in their molecular structure.

HDPE has a more linear structure with fewer branches, while LDPE has a more branched structure with more branches. This branching reduces the ability of LDPE molecules to pack together as tightly as HDPE molecules, leading to a lower density for LDPE.

The density of a material can also influence its properties. HDPE, with its higher density, is generally stronger and more rigid than LDPE. It is also less flexible than LDPE, which can bend and deform more easily due to the branching in its molecular structure. LDPE, on the other hand, has better impact resistance than HDPE, meaning it can absorb more energy before breaking.

In addition, HDPE is more resistant to chemicals and has better temperature resistance than LDPE. However, LDPE is more resistant to stress cracking and is more easily processed due to its lower melting point.

In summary, the density of a material is influenced by its molecular structure and packing ability, which can in turn affect its strength, flexibility, and other material properties. HDPE and LDPE, despite having the same chemical composition, have different densities and properties due to differences in their molecular structures.

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The fabric that is dyed with American flag red that displayed the most vivid color is the cotton fabric. This is due to the fact that cotton has a high affinity for the dye molecules. The fabric also has a strong and large intermolecular force that helps in binding with the dye molecules. This strong intermolecular force increases the depth of color for the cotton fabric.  

Intermolecular forces are forces that exist between molecules or atoms. These forces govern the physical properties of matter. The types of intermolecular forces are dipole-dipole forces, hydrogen bonds, van der Waals forces, ion-dipole forces, and London dispersion forces.

These forces are weak and are caused by temporary dipoles that are created in the molecules.

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11.15 mg/L of lead is present in the sample of potable water.

To calculate the concentration of lead in milligrams per liter (mg/L), we need to convert the volume of the sample from milliliters (mL) to liters (L).

1 L = 1000 mL

Therefore, the volume of the sample in liters is:

1435 mL ÷ 1000 mL/L = 1.435 L

Next, we can use the formula:

Concentration = Amount of solute ÷ Volume of solution

where the amount of solute is given in milligrams (mg) and the volume of solution is given in liters (L).

Substituting the values we have:

Concentration = 16.0 mg ÷ 1.435 L

Concentration = 11.15 mg/L

Therefore, the concentration of lead in the drinking water sample is 11.15 mg/L.

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To calculate the concentration of lead in milligrams per liter, we first need to convert the volume of the sample to liters and the mass of lead to milligrams.

Lead is a chemical element with the symbol Pb (from the Latin word plumbum) and atomic number 82. It is a soft, dense, bluish-grey metal that is toxic and can cause serious health problems, particularly in children and pregnant women.

Given:

Volume of sample (V) = 1435 mL = 1.435 L

Mass of lead (m) = 16.0 mg

We can use the formula for concentration:

concentration = mass of solute / volume of solution

Substituting the values:

concentration = 16.0 mg / 1.435 L

Simplifying:

concentration = 11.14 mg/L

Therefore, the concentration of lead in the drinking water sample is 11.14 milligrams per liter.

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Based on the definition of a mineral, being a naturally occurring solid, formed by inorganic processes, with a characteristic crystal structure and a specific chemical composition, materials that will be classified as minerals are those that meet the given criteria.

A mineral is a naturally occurring, solid, crystalline substance that is inorganic in nature and has a distinct chemical composition. Minerals are typically formed by geological processes that occur over a long period of time. Minerals are composed of atoms and molecules that are arranged in a regular, three-dimensional pattern, known as a crystal structure. Because minerals are formed under specific conditions, they have distinct physical and chemical properties.

There are numerous minerals in the earth's crust, and they can be identified based on their physical and chemical properties. Mineralogists study minerals and their properties in order to better understand the earth's composition and history.

Mineral resources are commonly used for industrial purposes such as construction, fuel, and electronics.

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Answer:

It is correct.

Explanation:

The statement “sodium reacts with chlorine to form sodium chloride” is correct.

Sodium and chlorine react to form sodium chloride, which is a type of salt. When sodium and chlorine combine, they form an ionic bond.

An ionic bond is a type of chemical bond that occurs when one atom donates an electron to another atom.

In this case, sodium donates an electron to chlorine, which results in the formation of sodium chloride.

The activation energy for the isomerization of methyl isocyanide is 198 kJ/mol.

Isomerization is a chemical reaction in which a molecule undergoes a structural rearrangement without being broken down into smaller molecules. The activation energy is the energy that must be supplied to a chemical reaction to begin. It is a measure of the reaction's difficulty to begin.

Methyl isocyanide is a chemical compound that is a colorless gas with a powerful odor. It is a linear molecule with the chemical formula CH₃NC. This compound is of interest because of its unusual reactivity and its ability to form a stable complex with transition metals in coordination chemistry.

In the case of methyl isocyanide, the reaction pathway involves the rearrangement of a single bond from C-N to N-C. The energy required for this transformation, including the necessary breaking and formation of bonds, is known as the activation energy. It is this energy barrier that must be overcome for the reaction to proceed.

Thus, the activation energy of the isomerization of methyl isocyanide is 198 kJ/mol. This is a relatively high energy requirement, indicating that the reaction is unlikely to occur under normal conditions without additional energy input.

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Answer:

anyone know the answers

Explanation:

To remove an amino group (-NH₂) from an amino acid and convert it to pyruvate or acetyl CoA, a process called deamination.

Deamination involves the removal of the amino group from the amino acid, resulting in the formation of ammonia (NH3) and a keto acid. Pyruvate is a keto acid, while acetyl CoA is derived from a keto acid through a further series of reactions.

There are two main pathways by which deamination can occur in the body: Transamination: In this pathway, the amino group is transferred from the amino acid to an alpha-keto acid, resulting in the formation of the new amino acid and the new keto acid. The enzyme responsible for this reaction is called transaminase or aminotransferase. Pyridoxal phosphate (PLP), a derivative of vitamin B6, is a cofactor required for this reaction.

Oxidative deamination: In this pathway, the amino group is directly removed from the amino acid and transferred to a molecule of oxygen, resulting in the formation of ammonia and a keto acid. The enzyme responsible for this reaction is called deaminase, and it requires the presence of molecular oxygen.

Once the amino group has been removed from the amino acid, the resulting keto acid can be further metabolized to form pyruvate or acetyl CoA through a series of additional reactions in various metabolic pathways, depending on the specific amino acid and the conditions of the reaction.

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the value of ΔH for the reaction of 18.1 g of hydrogen gas (H2) with excess oxygen to form water at constant pressure is -2,174.524 kJ. Since the value is negative, this indicates that the reaction is exothermic, and releases heat.

The first step is to calculate the number of moles of hydrogen gas (H2) in the 18.1 g sample:

moles of H2 = mass of H2 / molar mass of H2

moles of H2 = 18.1 g / 2.016 g/mol

moles of H2 = 8.98 mol

Since 1 mole of hydrogen gas (H2) releases 241.8 kJ of energy, we can use the following formula to calculate the amount of energy released by 8.98 mol of H2:

ΔH = nΔH_rxn

where n is the number of moles of H2 and ΔH_rxn is the molar enthalpy change for the reaction.

ΔH = 8.98 mol x (-241.8 kJ/mol)

ΔH = -2,174.524 kJ

Energy is the capacity of a physical system to perform work. It is an essential aspect of our daily lives and is involved in almost all human activities, from heating and cooling our homes to powering transportation and manufacturing processes.

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The correct net ionic equation for the given ionic equation is,

Co²⁺+ (aq) + 2 OH⁻⁻ (aq) → Co(OH)₂ (s)

Generally the net ionic equation is defined as a chemical equation for a reaction that counts only those species participating in the reaction. Basically the net ionic equation is mostly used in acid-base neutralization reactions, double displacement reactions, and redox reactions.

HCl, NaOH, and NaCl are some examples of strong electrolytes. As these electrolytes, completely dissociates into their ions in solution, and although it may written that "HCl" we really mean "H+ + Cl–". Also, "NaOH" is "Na+ + OH–" and "NaCl" is "Na+ + Cl–".

Hence, the correct net ionic equation for the given ionic equation is Co²⁺+ (aq) + 2 OH⁻⁻ (aq) → Co(OH)₂ (s).

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For 80% of the reactant to break down, it will take 31.5 seconds on average.

One reactant decomposing into two or more products is known as a decomposition reaction. The all-inclusive formula AB A + B can be used to represent this.

It is possible to express the rate law for reactant A's breakdown as follows:  rate = k[A]

The integrated rate law for a first-order reaction is: ln([A]/[A]0) = -kt

When we enter this together with the supplied values into the integrated rate law, we obtain:

ln(0.20) = -0.0092 s⁻¹ * t

Solving for t, we get:

t = -ln(0.20) / 0.0092 s⁻¹

t = 31.5 seconds

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Answer:

174.94 sec

Explanation:

ln [A] = ln[A]o -kt

If 80% of the reactant has decomposed, that means that 20% of the reactant remain. Since the rate (k=.0092s^-1) has a unit of s^-1, 23 know its a first order, so we use:

ln [A] = ln[A]o -kt

ln (20) = ln (100) - (0.0092)t

ln(.2)/.0092 = t

174.94 sec = t

The mass of sodium acetate (CH₃COONa) required to prepare 50.0 ml of a 0.10 m sodium acetate solution is 0.41g.

0.10 M aqueous solution of sodium acetate means that 1000 mL of a solution containing 0.10 moles of sodium acetate.

1 ml of solution = 0.10moles

∴No. of moles of sodium acetate in 50mL

= (0.10/1000)×50

= 0.005

Number of moles is calculated as

=Mass given/ Molecular mass

The molar mass of sodium acetate = 82.03g/mol

∴Mass of sodium acetate acquired

=no of moles of sodium acetate × molar mass of sodium acetate

= 0.005 mol ×82.03 g/mol

= 0.41 g

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The cation that is produced when calcium chloride dissociates in the presence of water is Ca²⁺.

In the presence of water, calcium chloride dissociates into its constituent ions:

CaCl₂(s) + H₂O(l) → Ca²⁺(aq) + 2Cl⁻(aq)

As seen from the equation, the cation which is produced when calcium chloride dissociates in the presence of water is Ca²⁺.

Calcium chloride (CaCl₂) is a chemical compound that is commonly used in a variety of applications, such as in de-icing and dust control, as a food additive, and in water treatment.

It is a white crystalline solid that is highly soluble in water and has a salty taste. When calcium chloride is dissolved in water, it dissociates into calcium cations (Ca²⁺) and chloride anions (Cl⁻), making it an electrolyte. Calcium chloride is also used in the production of cement and as a desiccant to remove moisture from the air.

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Millimoles (mmol) can be calculated from molarity and volume using the following formula: mmol = M x V, where M is the molarity in mol/L and V is the volume in L. To calculate the molarity from mmol/mL, one can simply divide the mmol value by the volume in mL and convert to mol/L by multiplying by 1000.

Molarity is a measure of the concentration of a solution, defined as the number of moles of solute per liter of solution. Millimoles (mmol) is a unit of measurement that is often used in biochemistry and other fields to express small amounts of substances. To convert between molarity and millimoles, one can use the formula mmol = M x V, where M is the molarity in mol/L and V is the volume in L.

This formula allows one to calculate the number of millimoles of solute present in a given volume of solution, given the molarity. Conversely, to calculate the molarity from millimoles, one can simply divide the mmol value by the volume in mL and convert to mol/L by multiplying by 1000. It is important to use the correct units when making these conversions to ensure accurate results.

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Answer: An electric current

Explanation:

As there is magnetic effect of electric current i.e when there is an electric current passing through any conductor then is produces a magnetic field around it depending on its shape. so due to magnetic field and a current there will be a magnetic force applied.  

Answer:

How should viruses be classified - as living or non-living?

Explanation:

Certain RNAs coordinate the synthesis of proteins at ribosomes, which are structures found in the cytoplasm.

Correct option is , True.

Every protein starts its production in the cytoplasm. Nonetheless, some are moved to other cellular locations while the majority remain there permanently. Some molecules are entirely produced in the cytoplasm.

It takes part in the signalling process that occurs between the nucleus, organelles, and cell membrane. It transports metabolites from the cell's production site to other parts of the body. It is critical that a cell divides throughout cytokinesis or mitosis. The cytoplasm is involved in eukaryote metabolism.

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It's more common to prepare acetic acid solutions with concentrations in the range of 0.1 to 1.0 M.

What is Acetic Acid?

Acetic acid is an organic acid with the chemical formula CH3COOH. It is a clear, colorless liquid with a pungent odor and sour taste. It is also known as ethanoic acid and is the main component of vinegar, which is typically composed of 5-20% acetic acid by volume.

To calculate the molarity of a solution, we need to know the number of moles of solute and the volume of the solution in liters.

In this case, we are given the number of moles of acetic acid (2.08 mol) and the volume of the solution (15 mL or 0.015 L). We can use the formula for molarity:

Molarity = moles of solute / volume of solution (in liters)

Molarity = 2.08 mol / 0.015 L = 139 M

Therefore, the molarity of the solution produced is 139 M. However, it's important to note that this concentration is extremely high and not practical or feasible for most laboratory or industrial purposes.

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The molarity of the solution when  9.27 g of phosphoric acid is added to water which had a volume of 92.80 ml is 1.02 M.

The molarity of the solution containing 9.27 g of phosphoric acid in 92.80 ml of water can be calculated as follows

Mass of phosphoric acid (H3PO4) = 9.27 g

Volume of solution = 92.80 mL

Convert volume of the solution to litres = 92.80 mL / 1000 = 0.0928 L

The molar mass of H3PO4 is:

Molar mass of H = 1.0079 g/mol

Molar mass of P = 30.9738 g/mol

Molar mass of O = 15.9994 g/mol

So, the molecular mass of H3PO4 = 3 × 1.0079 + 1 × 30.9738 + 4 × 15.9994= 98.0 g/mol

Now, Molarity (M) of the solution can be calculated by the formula:

M = mass of solute ÷ molar mass of solute × volume of solution in litres

Putting the values of mass, molar mass and volume of the solution in the above formula, we get:

M = (9.27 g ÷ 98.0 g/mol) ÷ 0.0928 L= 1.02 M

The molarity of the solution is 1.02 M.

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When one of the reactants is identified as the limiting reactant and the other as the excess reactant, the limiting reactant will be entirely consumed by the reaction, while part of the surplus reactant will be left over.

The greatest amount of product that can be created from the specified amounts of reactants is determined by this crucial stoichiometric notion.

In the balanced chemical equation, compare the amounts of each reactant and their associated stoichiometric coefficients to identify which reactant is the limiting reactant.

As it will be consumed entirely before the other reactant, the limiting reactant is the one with the lower necessary number of moles for the reaction.

Stoichiometry can be used to determine how much of the limiting reactant can be converted into the product once it has been identified.

When comparing the amount of excess reactant used in the reaction to the total amount of excess reactant available, the surplus reactant is then recognized.

If needed, stoichiometry can be used to determine the quantity of extra reactant that is still present.

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Answer:

After determining the amount of moles required for one of the reactants, it was shown that ✔ copper was the limiting reactant and ✔ sulfur was the excess reactant.

Explanation:

edge 2023

If my lab partner is interested in studying how industrial chemicals pollute the environment, I would recommend him to take specialization in the field of environmental chemistry.

Environmental chemistry is a branch of chemistry of utmost importance as it deals with the various impacts that are caused upon the environment by chemicals  released from industries and day to day activities.

I would recommend my lab partner to take courses of analytical chemistry, physical, inorganic and organic chemistry as well in order to investigate in depths of environmental chemistry. All these fields are needed to be studied in order to study about the occurrence of environmental pollution by industrial chemicals.

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When a large tablet dissolves in water, releasing a lot of bubbles, it is a: chemical change occurs.

The dissolved tablet changes the chemical composition of the water. Here's a step-by-step explanation:

When a large tablet is added to water, it begins to dissolve in the water. This process is known as a physical change because no new substance has been formed. However, the large tablet is made up of chemicals that are reacting with the water as it dissolves. As the chemicals react, they produce a lot of bubbles.

The bubbles are formed because of a chemical reaction that occurs when the tablet dissolves. As the chemicals in the tablet react with the water, they release gases such as carbon dioxide. The carbon dioxide gas is what causes the bubbles to form.

The chemical reaction that takes place between the chemicals in the tablet and the water is irreversible, meaning that a new substance is formed. The tablet dissolving in water is a great example of a chemical change because a new substance is formed when the chemicals in the tablet react with the water.

In this case, the bubbles are a byproduct of the chemical reaction that takes place when the tablet dissolves. Therefore, the release of bubbles during the dissolving of the tablet is an indication of a chemical change.

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The order of decreasing pH from highest to lowest is Ba(OH)2 > NaOH > N2H4 > HOCI > HCI.

pH measures how acidic or basic a solution is, based on the concentration of hydrogen ions (H+) in the solution. A low pH means a high concentration of H+ ions, making the solution more acidic. A high pH means a low concentration of H+ ions, making the solution more basic or alkaline.

NaOH is a strong base that completely dissociates in water, producing a high concentration of OH- ions and a pH of 14. Ba(OH)2 is also a strong base and produces twice as many OH- ions as NaOH, so it has an even higher pH than NaOH. HOCI is a weak acid partially dissociating in water, producing H+ and ClO- ions. The equilibrium between the two ions determines the pH, which is around 4.5 for a 0.10 M solution.

HCI is a strong acid dissociating completely in water, producing H+ and Cl- ions. Since the concentration of H+ ions is very high, the pH is very low (around 1). N2H4 is a weak base partially dissociating in water, producing NH3 and NH2- ions. The equilibrium between the two ions determines the pH, which is around 8.4 for a 0.10 M solution.

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Net ionic equation for the reaction that occurs between aqueous solutions of potassium phosphate and aluminum chloride is Al3+(aq.) + PO43–(aq.) → AlPO4(s). So, option (b) is correct.

The net ionic equation is defined as the chemical equation that shows only those elements, compounds, and ions that are directly involved in the chemical reaction. Aqueous potassium phosphate reacts with aqueous aluminum chloride to form aqueous potassium chloride and solid aluminum phosphate. The balanced equation of the reaction between aqueous aluminum chloride and potassium phosphate to form aqueous potassium chloride and solid aluminum phosphate is,

K3PO4(aq.) + AlCl3(aq.) ---> 3 KCL (aq.) + AlPO4(s)

Net ionic equations must be balanced by both mass and charge that means we have to ensure that there are equal masses of each element on the product and reactant sides. Balancing the equation by charge means making sure that the overall charge is the same on both sides of the equation. Balancing the molecular equation properly the net ionic equation will end up being balanced by both mass and charge of the equation.

Al3+(aq.) + PO43–(aq.) → AlPO4(s)

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