Molar mass is a crucial property for understanding the behavior and composition of substances. The molar mass of silver iodide (AgI) is a parameter that quantifies the mass of one mole of this compound, providing insights into its chemical makeup. It is closely related to the atomic masses of silver and iodine, the number of atoms in the formula unit, and the stoichiometric ratio between these elements.
The Molar Mass of Silver Iodide (AgI)
The molar mass of a compound is the sum of the atomic masses of its constituent elements. For silver iodide (AgI), the molar mass can be calculated as follows:
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Find the atomic masses of silver and iodine.
- The atomic mass of silver (Ag) is 107.87 amu.
- The atomic mass of iodine (I) is 126.90 amu.
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Multiply the atomic mass of each element by the number of atoms of that element in the compound.
- In AgI, there is one atom of silver and one atom of iodine.
- Multiply the atomic mass of silver (107.87 amu) by 1 to get 107.87 amu.
- Multiply the atomic mass of iodine (126.90 amu) by 1 to get 126.90 amu.
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Add the products of the atomic masses and the number of atoms to get the molar mass.
- 107.87 amu + 126.90 amu = 234.77 amu
Therefore, the molar mass of silver iodide (AgI) is 234.77 amu.
Table of Atomic Masses and Calculations
| Element | Atomic Mass (amu) | Number of Atoms | Product (amu) |
|---|---|---|---|
| Silver (Ag) | 107.87 | 1 | 107.87 |
| Iodine (I) | 126.90 | 1 | 126.90 |
| Total | 234.77 | 234.77 |
Question 1:
What is the molar mass of silver iodide (AgI)?
Answer:
The molar mass of silver iodide (AgI) is 234.77 g/mol.
Question 2:
How is the molar mass of AgI calculated?
Answer:
The molar mass of AgI is calculated by adding the atomic masses of one silver atom (107.87 g/mol) and one iodine atom (126.90 g/mol).
Question 3:
What factors affect the molar mass of AgI?
Answer:
The molar mass of AgI is not affected by any external factors and remains constant as it is determined by the atomic masses of silver and iodine.
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