15 Facts on H2SO4 + Na3PO4: What, How To Balance & FAQs

H2SO4 and Na3PO4 are chemical compounds that are commonly used in various industries and laboratory settings. H2SO4, also known as sulfuric acid, is a strong acid with a wide range of applications, including as a catalyst, dehydrating agent, and electrolyte in batteries. Na3PO4, on the other hand, is sodium phosphate, a compound used in detergents, water treatment, and as a food additive. These compounds have distinct properties and uses, but they both play important roles in different fields.

Key Takeaways

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CompoundChemical FormulaCommon NameUses
H2SO4Sulfuric AcidAcidCatalyst, dehydrating agent, electrolyte
Na3PO4Sodium PhosphateSodium phosphateDetergents, water treatment, food additive

Reaction between H2SO4 and Na3PO4

The reaction between sulfuric acid (H2SO4) and trisodium phosphate (Na3PO4) is an acid-base reaction known as neutralization. This chemical reaction involves the exchange of ions between the two compounds, resulting in the formation of new products.

Balanced Equation

The balanced equation for the reaction between H2SO4 and Na3PO4 is as follows:

2H2SO4 + 3Na3PO4 → 6Na2SO4 + H3PO4

In this equation, two molecules of sulfuric acid react with three molecules of trisodium phosphate to produce six molecules of sodium sulfate and one molecule of phosphoric acid.

Ionic Equation

To understand the reaction at the ionic level, we can write the ionic equation by dissociating the compounds into their respective ions:

2H+ + SO4^2- + 3Na+ + PO4^3- → 6Na+ + 2SO4^2- + H3PO4

In this ionic equation, the hydrogen ions (H+) from sulfuric acid combine with the phosphate ions (PO4^3-) from trisodium phosphate to form phosphoric acid (H3PO4). The sulfate ions (SO4^2-) from sulfuric acid combine with the sodium ions (Na+) from trisodium phosphate to form sodium sulfate (Na2SO4).

Product Formation (Na2SO4 and H3PO4)

The reaction between H2SO4 and Na3PO4 results in the formation of sodium sulfate (Na2SO4) and phosphoric acid (H3PO4). Sodium sulfate is an inorganic salt that is soluble in water, while phosphoric acid is a weak acid.

The formation of sodium sulfate and phosphoric acid can be explained by the exchange of ions between the reactants. The hydrogen ions (H+) from sulfuric acid combine with the phosphate ions (PO4^3-) from trisodium phosphate to form phosphoric acid. Simultaneously, the sulfate ions (SO4^2-) from sulfuric acid combine with the sodium ions (Na+) from trisodium phosphate to form sodium sulfate.

The reaction between H2SO4 and Na3PO4 is an example of a stoichiometric reaction, where the reactants combine in specific ratios to form the products. The balanced equation ensures that the number of atoms and charges are conserved during the reaction.

Overall, the reaction between H2SO4 and Na3PO4 involves the formation of sodium sulfate and phosphoric acid through the exchange of ions. This acid-base reaction plays a significant role in inorganic chemistry and demonstrates the principles of chemical equilibrium, stoichiometry, and product formation.

Understanding the Reaction

In chemistry, understanding the reaction is crucial to comprehend the changes that occur when different substances interact with each other. It allows us to predict the products formed, determine the stoichiometry of the reaction, and analyze the underlying chemical processes. In this article, we will explore the different aspects of a reaction, including the type of reaction, the explanation of cation and anion interchange, and balancing the equation.

Type of Reaction

Chemical reactions can be classified into various types based on the nature of the reactants and the products formed. One common type is an acid-base reaction, where an acid reacts with a base to form a salt and water. An example of this is the reaction between sulfuric acid (H2SO4) and trisodium phosphate (Na3PO4). This reaction involves the interchange of cations and anions, resulting in the formation of sodium sulfate (Na2SO4) and water (H2O).

Explanation of Cation and Anion Interchange

In an acid-base reaction, the cations and anions of the reactants switch places to form new compounds. In the case of sulfuric acid and trisodium phosphate, the H+ ion from sulfuric acid combines with the PO4 3- ion from trisodium phosphate to form water. Meanwhile, the Na+ ion from trisodium phosphate combines with the SO4 2- ion from sulfuric acid to form sodium sulfate. This cation and anion interchange is essential for the formation of the products.

Balancing the Equation

To represent a chemical reaction accurately, it is necessary to balance the equation. Balancing the equation ensures that the number of atoms of each element is the same on both sides of the equation. In the reaction between sulfuric acid and trisodium phosphate, the balanced molecular equation is:

H2SO4 + 2Na3PO4 → Na2SO4 + 2H2O

However, this equation does not provide information about the actual species involved in the reaction. To obtain a more detailed representation, we can write the ionic equation, which shows the dissociation of the reactants into ions. The ionic equation for the reaction is:

2H+ + SO4 2- + 6Na+ + 2PO4 3- → 2Na+ + SO4 2- + 2H2O

Finally, we can simplify the equation further by canceling out the spectator ions, which are the ions that appear on both sides of the equation. The resulting equation is called the net ionic equation:

2H+ + 2PO4 3- → 2H2O

This net ionic equation focuses on the essential species involved in the reaction, providing a clearer understanding of the chemical processes occurring.

By understanding the type of reaction, the explanation of cation and anion interchange, and balancing the equation, we can gain insights into the stoichiometry, product formation, and overall chemical equilibrium. These concepts are fundamental in inorganic chemistry and play a crucial role in understanding the behavior of chemical compounds in aqueous solutions. Additionally, balancing the equation allows us to determine the molar mass of reactants and products, analyze chemical bonds, and calculate the quantities of substances involved in the reaction.

Remember, the pH level, enthalpy, oxidation numbers, and other factors may also influence the reaction and its outcome. Therefore, it is essential to consider these variables when studying chemical reactions and their mechanisms.

Titration of H2SO4 + Na3PO4

Infeasibility of titration due to the formation of H3PO4

When it comes to the titration of H2SO4 (sulfuric acid) and Na3PO4 (trisodium phosphate), we encounter a challenge due to the formation of H3PO4 (phosphoric acid). This formation makes the titration infeasible, and in this section, we will explore the reasons behind it.

In a typical acid-base reaction, titration is used to determine the concentration of an acid or a base by reacting it with a known concentration of the opposite reactant. The reaction between H2SO4 and Na3PO4 is an acid-base reaction, where sulfuric acid acts as the acid and trisodium phosphate acts as the base.

The molecular equation for the reaction between H2SO4 and Na3PO4 can be represented as follows:

H2SO4 + Na3PO4 → H3PO4 + Na2SO4

In this reaction, sulfuric acid (H2SO4) reacts with trisodium phosphate (Na3PO4) to form phosphoric acid (H3PO4) and sodium sulfate (Na2SO4). However, the formation of phosphoric acid (H3PO4) poses a challenge in the titration process.

To understand why the titration is infeasible, let’s break down the reaction into its ionic equation:

2H+ + SO4 2- + 3Na+ + PO4 3- → H3PO4 + 2Na+ + SO4 2-

In this ionic equation, we can see that the H+ ions from sulfuric acid react with the PO4 3- ions from trisodium phosphate to form phosphoric acid (H3PO4). This formation of H3PO4 complicates the titration process as it interferes with the accurate determination of the concentration of H2SO4.

Furthermore, if we consider the net ionic equation, which only includes the species directly involved in the reaction, it would be:

2H+ + PO4 3- → H3PO4

From the net ionic equation, we can see that the H+ ions and PO4 3- ions combine to form H3PO4. This reaction does not involve Na+ or SO4 2- ions, which means that the formation of H3PO4 is independent of the presence of Na3PO4 or H2SO4.

The infeasibility of titration in this case is due to the fact that the formation of H3PO4 is not directly proportional to the amount of H2SO4 present. This makes it difficult to accurately determine the concentration of H2SO4 using the titration method.

In summary, the titration of H2SO4 + Na3PO4 is not feasible due to the formation of H3PO4. The reaction between sulfuric acid and trisodium phosphate leads to the formation of phosphoric acid, which interferes with the accurate determination of the concentration of H2SO4. This highlights the importance of understanding the chemical reactions, stoichiometry, and equilibrium involved in titration processes in inorganic chemistry.

Deeper into the Reaction

Net Ionic Equation

In the realm of chemical reactions, understanding the net ionic equation is crucial. It allows us to focus on the essential components involved in a reaction, stripping away any spectator ions that do not actively participate. Let’s take a closer look at how this equation helps us comprehend the underlying chemistry.

To illustrate this concept, let’s consider the acid-base reaction between sulfuric acid (H2SO4) and trisodium phosphate (Na3PO4). This reaction involves the transfer of protons (H+) from the acid to the phosphate ion (PO4 3-), resulting in the formation of water (H2O) and sodium sulfate (Na2SO4). The molecular equation for this reaction can be written as:

H2SO4 + 2Na3PO4 → 2Na2SO4 + H2O + Na3PO4

However, this equation does not provide a clear picture of the actual chemical changes occurring. To gain a deeper understanding, we can write the ionic equation by dissociating the reactants into their respective ions:

2H+ + SO4 2- + 6Na+ + 2PO4 3- → 2Na+ + SO4 2- + 2H2O + 3Na+ + PO4 3-

Now, let’s simplify the equation further by canceling out the spectator ions (Na+ and SO4 2-) that appear on both sides of the equation:

2H+ + 2PO4 3- → 2H2O + 3Na+

This is the net ionic equation, which represents the essential chemical changes occurring during the reaction. It highlights the transfer of protons from the acid to the phosphate ion, resulting in the formation of water and sodium ions.

Conjugate Pairs

In an acid-base reaction, understanding conjugate pairs is essential to comprehend the interplay between acids and bases. A conjugate acid-base pair consists of two species that differ by the gain or loss of a proton (H+). Let’s explore this concept further using the sulfuric acid and trisodium phosphate reaction.

In this reaction, sulfuric acid (H2SO4) acts as the acid, donating protons (H+) to the phosphate ion (PO4 3-), which acts as the base. As a result, sulfuric acid loses a proton and forms its conjugate base, sulfate ion (SO4 2-), while the phosphate ion gains a proton and forms its conjugate acid, hydrogen phosphate ion (HPO4 2-).

The conjugate acid-base pairs in this reaction are:

  • Acid: Sulfuric acid (H2SO4)
  • Conjugate Base: Sulfate ion (SO4 2-)
  • Base: Phosphate ion (PO4 3-)
  • Conjugate Acid: Hydrogen phosphate ion (HPO4 2-)

Understanding conjugate pairs allows us to analyze the transfer of protons and the transformation of chemical species during acid-base reactions.

Intermolecular Forces

When exploring chemical reactions, it is crucial to consider the intermolecular forces at play. These forces determine the interactions between molecules and influence the physical and chemical properties of substances involved in a reaction.

In the sulfuric acid and trisodium phosphate reaction, the reactants are in aqueous solution, where water molecules (H2O) play a significant role. Water molecules possess polar covalent bonds, resulting in a slightly positive charge on the hydrogen atoms and a slightly negative charge on the oxygen atom.

As the acid-base reaction occurs, the polar water molecules surround and interact with the ions formed. The positively charged hydrogen atoms of water molecules are attracted to the negatively charged sulfate (SO4 2-) and phosphate (PO4 3-) ions, forming hydrogen bonds. These intermolecular forces stabilize the ions in the solution.

Additionally, the sodium ions (Na+) and sulfate ions (SO4 2-) formed during the reaction are also stabilized by ion-dipole interactions with the polar water molecules. These forces contribute to the overall stability of the reaction products.

Understanding intermolecular forces helps us comprehend the behavior of chemical compounds in solution and their role in facilitating reactions.

By delving deeper into the reaction, we can uncover the net ionic equation, understand conjugate pairs, and appreciate the intermolecular forces at play. These insights enhance our understanding of acid-base reactions, stoichiometry, and chemical equilibrium, providing a solid foundation in inorganic chemistry.

Energy Aspects of the Reaction

Reaction Enthalpy

The energy aspects of a chemical reaction are crucial in understanding the overall behavior and characteristics of the reaction. One important energy aspect is the reaction enthalpy, which refers to the heat energy released or absorbed during a chemical reaction. It provides insight into the energy changes that occur as reactants are converted into products.

In the case of an acid-base reaction between sulfuric acid (H2SO4) and trisodium phosphate (Na3PO4), the reaction enthalpy can be determined by examining the balanced chemical equation. The molecular equation for this reaction is:

H2SO4 + 2Na3PO4 → 2Na2SO4 + H3PO4

To further understand the energy aspects, it is helpful to examine the ionic equation and the net ionic equation. The ionic equation for the reaction is:

2H+ + SO4^2- + 6Na+ + 2PO4^3- → 2Na+ + SO4^2- + 2HPO4^2-

The net ionic equation, which focuses on the species directly involved in the reaction, is:

2H+ + 2PO4^3- → 2HPO4^2-

From these equations, we can observe that the reaction involves the transfer of protons (H+) and phosphate ions (PO4^3-) to form hydrogen phosphate ions (HPO4^2-). This transfer of ions leads to the formation of new chemical compounds, namely sodium sulfate (Na2SO4) and hydrogen phosphate (H3PO4).

Exothermic or Endothermic Reaction

Another important aspect of the energy in a reaction is whether it is exothermic or endothermic. An exothermic reaction releases heat energy to the surroundings, while an endothermic reaction absorbs heat energy from the surroundings.

In the case of the acid-base reaction between sulfuric acid and trisodium phosphate, the reaction is exothermic. This means that heat energy is released during the reaction. The formation of new chemical bonds in the products results in the release of energy in the form of heat.

The exothermic nature of this reaction can be explained by the enthalpy change. The enthalpy change, denoted as ΔH, is negative for an exothermic reaction. In this case, the enthalpy change is negative because the reaction releases heat energy.

Understanding the energy aspects of a reaction, such as reaction enthalpy and whether it is exothermic or endothermic, provides valuable insights into the behavior and characteristics of the reaction. It allows us to analyze the energy changes that occur during the formation of products from reactants and helps in studying the stoichiometry and chemical equilibrium of the reaction.

Please note that the pH level, molar mass of chemical compounds, and other specific details of the reaction have not been discussed in this section, as they are beyond the scope of the energy aspects of the reaction.

Other Characteristics of the Reaction

Buffer Solution

A buffer solution is a special type of solution that helps maintain the pH level of a system, even when an acid or base is added. It consists of a weak acid and its conjugate base, or a weak base and its conjugate acid. Buffer solutions are important in many chemical reactions, as they help stabilize the pH and prevent drastic changes in acidity or alkalinity.

Completeness of the Reaction

The completeness of a chemical reaction refers to the extent to which reactants are converted into products. In some cases, a reaction may not go to completion, resulting in the formation of both reactants and products. The completeness of a reaction can be influenced by factors such as reaction conditions, reactant concentrations, and the presence of catalysts.

Redox Reaction

A redox reaction, short for reduction-oxidation reaction, is a type of chemical reaction that involves the transfer of electrons between reactants. In these reactions, one species undergoes oxidation (loses electrons) while another species undergoes reduction (gains electrons). Redox reactions are important in various fields, including electrochemistry, energy production, and biological processes.

Precipitation Reaction

A precipitation reaction occurs when two aqueous solutions are mixed, resulting in the formation of an insoluble solid called a precipitate. This type of reaction is commonly observed in inorganic chemistry, where the formation of a solid product indicates the occurrence of a chemical reaction. Precipitation reactions are often used in laboratory settings to identify the presence of specific ions in a solution.

Reversibility of the Reaction

The reversibility of a chemical reaction refers to the ability of the reaction to proceed in both the forward and reverse directions. Some reactions are reversible, meaning they can proceed in either direction depending on the reaction conditions. Reversible reactions are important in chemical equilibrium, where the concentrations of reactants and products reach a state of balance.

Displacement Reaction

A displacement reaction, also known as a replacement reaction, occurs when one element or ion is replaced by another element or ion in a compound. This type of reaction involves the transfer of atoms or ions, resulting in the formation of a new compound. Displacement reactions are commonly observed in various chemical processes, such as the corrosion of metals and the formation of salts.

Frequently Asked Questions

Here are some frequently asked questions about various chemical compounds and reactions:

What is the pH of Na3PO4?

The pH of Na3PO4, also known as trisodium phosphate, depends on its concentration in water. When dissolved in water, Na3PO4 dissociates into sodium ions (Na+) and phosphate ions (PO4 3-). Since neither sodium nor phosphate ions react with water to produce H+ or OH- ions, the solution is considered neutral. Therefore, the pH of Na3PO4 is around 7.

How many atoms are in Na2SO4?

To determine the number of atoms in Na2SO4, we need to analyze its chemical formula. Na2SO4 consists of two sodium atoms (Na), one sulfur atom (S), and four oxygen atoms (O). Therefore, there are a total of seven atoms in Na2SO4.

What is Na2SO4?

Na2SO4 is the chemical formula for sodium sulfate. It is an inorganic compound commonly used in various industries, including detergents, textiles, and paper manufacturing. Sodium sulfate is a white crystalline solid that is soluble in water. It is formed by the reaction between sodium hydroxide (NaOH) and sulfuric acid (H2SO4).

How to name H2SO3?

H2SO3 is named as sulfurous acid. It is an intermediate compound in the oxidation of sulfur dioxide (SO2) to sulfuric acid (H2SO4). Sulfurous acid is a weak acid that can be formed by dissolving sulfur dioxide in water. Its chemical formula indicates that it contains two hydrogen atoms (H) and one sulfur trioxide group (SO3).

What is the net ionic equation for H2SO4 + Na3PO4?

When sulfuric acid (H2SO4) reacts with trisodium phosphate (Na3PO4), a double displacement reaction occurs. The net ionic equation for this reaction can be written as follows:

2H+ + PO4 3- → H2PO4-

In this equation, the hydrogen ions (H+) from sulfuric acid combine with the phosphate ions (PO4 3-) from trisodium phosphate to form dihydrogen phosphate ions (H2PO4-).

When H2SO4 is neutralized by NaOH in an aqueous solution, what is the balanced equation?

When sulfuric acid (H2SO4) is neutralized by sodium hydroxide (NaOH) in an aqueous solution, a neutralization reaction occurs. The balanced equation for this reaction can be written as follows:

H2SO4 + 2NaOH → Na2SO4 + 2H2O

In this equation, sulfuric acid reacts with sodium hydroxide to produce sodium sulfate and water. The stoichiometric coefficients ensure that the number of atoms is balanced on both sides of the equation.

What is Na3PO4?

Na3PO4, also known as trisodium phosphate, is an inorganic compound. It is a white, crystalline solid that is highly soluble in water. Trisodium phosphate is commonly used in cleaning products, food additives, and water treatment. It can also be used as a flux in metal finishing processes.

When H2SO4 is neutralized by KOH in an aqueous solution, what is the net ionic equation?

When sulfuric acid (H2SO4) is neutralized by potassium hydroxide (KOH) in an aqueous solution, a neutralization reaction occurs. The net ionic equation for this reaction can be written as follows:

2H+ + 2OH- → 2H2O

In this equation, the hydrogen ions (H+) from sulfuric acid combine with the hydroxide ions (OH-) from potassium hydroxide to form water molecules (H2O). The stoichiometric coefficients ensure that the number of ions is balanced on both sides of the equation.

These frequently asked questions cover various aspects of chemical compounds, reactions, and their properties. If you have any more questions, feel free to ask!

How many ions are in Na2SO4?

Na2SO4 is a chemical compound that consists of sodium ions (Na+) and sulfate ions (SO4^2-). To determine the number of ions in Na2SO4, we need to consider the dissociation of the compound in water.

When Na2SO4 dissolves in water, it dissociates into its constituent ions. Each sodium ion (Na+) and sulfate ion (SO4^2-) separates from the compound and becomes surrounded by water molecules. This process is known as ionization.

In the case of Na2SO4, since there are two sodium ions (Na+) in the formula, the compound will release two sodium ions when it dissolves. Additionally, there is one sulfate ion (SO4^2-) in the formula, which means that one sulfate ion will be released upon dissolution.

Therefore, when Na2SO4 dissolves in water, it produces a total of three ions: two sodium ions (Na+) and one sulfate ion (SO4^2-).

Now, let’s move on to the subheading and explore the question of whether H2SO4 + Na2CO3 forms a precipitate.

Does H2SO4 + Na2CO3 form a precipitate?

When sulfuric acid (H2SO4) reacts with sodium carbonate (Na2CO3), an acid-base reaction takes place. The reaction can be represented by the following balanced molecular equation:

H2SO4 + Na2CO3 → Na2SO4 + H2O + CO2

In this reaction, sulfuric acid (H2SO4) reacts with sodium carbonate (Na2CO3) to form sodium sulfate (Na2SO4), water (H2O), and carbon dioxide (CO2).

To determine if a precipitate forms during this reaction, we need to examine the solubility of the products. Sodium sulfate (Na2SO4) is a soluble salt, meaning it dissolves completely in water. Water (H2O) and carbon dioxide (CO2) are also soluble in water.

Therefore, when sulfuric acid (H2SO4) reacts with sodium carbonate (Na2CO3), no precipitate is formed. All the products remain in the aqueous solution.

In summary, the reaction between H2SO4 and Na2CO3 does not result in the formation of a precipitate. The products of the reaction, including sodium sulfate (Na2SO4), water (H2O), and carbon dioxide (CO2), remain in the solution as dissolved ions and molecules.

What is the Process of Balancing Chemical Equations with HNO3 and B?

Balancing chemical equations can be achieved by following a systematic process. When dealing with HNO3 and B, also known as nitric acid and boron, we must ensure that the equation is balanced correctly. By considering the number of atoms on each side of the equation and adjusting coefficients accordingly, the equation can be balanced. Keeping in mind the facts about balancing hno3 and b is important to achieve accurate results.

Conclusion

In conclusion, the reaction between sulfuric acid (H2SO4) and sodium phosphate (Na3PO4) results in the formation of sodium sulfate (Na2SO4) and phosphoric acid (H3PO4). This chemical reaction is known as a double displacement reaction, where the positive ions of one compound switch places with the positive ions of the other compound. The balanced chemical equation for this reaction is 2H2SO4 + 3Na3PO4 → 3Na2SO4 + 2H3PO4. This reaction is commonly used in various industrial processes and laboratory experiments. Understanding the reaction between H2SO4 and Na3PO4 is important in the field of chemistry and has practical applications in different industries.

Frequently Asked Questions

1. What is the reaction between Na2SO4 and H2O?

The reaction between sodium sulfate (Na2SO4) and water (H2O) is a dissolution process where sodium sulfate dissolves in water to form a homogeneous aqueous solution. The equation is Na2SO4(s) + H2O(l) -> 2Na+(aq) + SO4 2-(aq).

2. What happens when (NH4)2S2O8 is mixed with water?

Ammonium persulfate ((NH4)2S2O8) is a strong oxidizing agent. When mixed with water, it dissolves and dissociates into ammonium ions (NH4+) and persulfate ions (S2O8 2-). This reaction is often used in laboratories for the preparation of etchants.

3. What is the role of the Pt ion in the reaction between Na3PO4 and H2SO4?

The Pt ion is not directly involved in the reaction between trisodium phosphate (Na3PO4) and sulfuric acid (H2SO4). It may act as a catalyst in some reactions, but in this case, the reaction proceeds without it. The reaction is a neutralization reaction producing sodium sulfate and phosphoric acid.

4. What is the phenomenon observed when H2SO4 reacts with Na3PO4?

When sulfuric acid (H2SO4) reacts with trisodium phosphate (Na3PO4), a neutralization reaction occurs, resulting in the formation of sodium sulfate and phosphoric acid. The reaction is exothermic, releasing heat, and may also produce a precipitate if the product is not soluble.

5. What is the ionic equation for the reaction between Na3PO4 and H2SO4?

The ionic equation for the reaction between trisodium phosphate (Na3PO4) and sulfuric acid (H2SO4) is: 2H+(aq) + PO4 3-(aq) –> H2PO4-(aq). This shows the formation of the dihydrogen phosphate ion.

6. What is the reaction between NaHSO4 and H2O?

When sodium bisulfate (NaHSO4) is mixed with water, it dissolves and dissociates into sodium ions (Na+) and bisulfate ions (HSO4-). This reaction is often used in acid-base reactions as sodium bisulfate is a common dry acid.

7. What is the pH of a Na3PO4 solution?

The pH of a Na3PO4 (trisodium phosphate) solution is typically alkaline, meaning it is greater than 7. This is because Na3PO4 is a salt of a strong base (NaOH) and a weak acid (H3PO4), and it hydrolyzes in water to produce OH- ions, increasing the pH.

8. What is the net ionic equation for the reaction between H2SO4 and Na3PO4?

The net ionic equation for the reaction between sulfuric acid (H2SO4) and trisodium phosphate (Na3PO4) is: 2H+(aq) + PO4 3-(aq) –> H2PO4-(aq). This equation shows only the species that actually participate in the reaction.

9. What is the molar mass of (NH4)2SO4?

The molar mass of ammonium sulfate ((NH4)2SO4) is approximately 132.14 g/mol. This is calculated by adding up the atomic masses of its constituent elements: Nitrogen, Hydrogen, Sulfur, and Oxygen.

10. What is the chemical reaction between (NH4)2SO4 and Na2HPO4•7H2O?

The reaction between ammonium sulfate ((NH4)2SO4) and sodium hydrogen phosphate heptahydrate (Na2HPO4•7H2O) results in the formation of ammonium phosphate ((NH4)3PO4) and sodium sulfate (Na2SO4). The reaction is balanced as follows: (NH4)2SO4 + Na2HPO4•7H2O -> (NH4)3PO4 + Na2SO4 + 7H2O.