Phosphorus triiodide’s molecular formula is PI3, representing its composition of one phosphorus atom and three iodine atoms. The IUPAC name, phosphorus triiodide, is derived from this formula, indicating the presence of phosphorus in its +3 oxidation state and three iodine atoms. The chemical formula provides a simplified notation for the compound, while the molar mass (411.69 g/mol) indicates its molecular weight. The CAS Number (12420-53-9) serves as a unique identifier for the compound, and the PubChem CID (23997) links it to a comprehensive database of chemical information.
Unveiling the Molecular Formula of Phosphorus Triiodide
Introduction:
Prepare to delve into the captivating world of chemistry as we explore the molecular formula of phosphorus triiodide, a fascinating compound with unique properties. Join us on an enthralling journey as we decode the elements and unravel the secrets behind this intriguing molecule.
Defining Molecular Formula:
At the heart of every compound lies its molecular formula, a blueprint that reveals the exact arrangement of atoms within its structure. This formula serves as a vital tool for chemists, allowing them to decipher a compound’s identity, properties, and reactivity.
PI3: The Molecular Signature of Phosphorus Triiodide:
Now, let’s turn our attention to phosphorus triiodide. Its molecular formula, PI3, signifies the presence of one phosphorus atom and three iodine atoms in each molecule. This precise ratio of elements defines the compound’s chemical identity and sets it apart from countless other molecular combinations.
Unraveling the Identity of Phosphorus Triiodide: Delving into IUPAC Nomenclature
In the realm of chemistry, precise communication is paramount, and this is where the International Union of Pure and Applied Chemistry (IUPAC) steps in. IUPAC sets the standards for naming chemical compounds, ensuring a universal language that scientists around the globe can understand.
Let’s take phosphorus triiodide (PI3) as an example. This fascinating compound’s molecular formula, PI3, tells us that it contains one phosphorus atom and three iodine atoms. But how do we translate this molecular shorthand into a meaningful name?
Here’s where IUPAC nomenclature comes into play. IUPAC guidelines dictate that the name of a compound should reflect its composition and structure. In the case of PI3, we start with the root name for the central atom, which is “phosphorus“. Then, we add the **suffix* “-ide” **to indicate the presence of iodine.
But wait, there’s more! Since there are three iodine atoms, we use the prefix* “tri-“. So, putting it all together, we arrive at the IUPAC name “phosphorus triiodide”. This name clearly conveys the compound’s molecular composition and aids in distinguishing it from other phosphorus-iodine compounds.
Chemical Formula: A Shorthand Notation for Chemical Composition
In the realm of chemistry, precise communication and identification of substances are crucial. Chemical formulas play a pivotal role in this endeavor, serving as concise yet informative notations that convey the elemental composition of a compound. Understanding the distinction between chemical formulas and molecular formulas is essential for grasping the intricacies of chemical nomenclature and representation.
Molecular Formula vs. Chemical Formula
A molecular formula represents the exact number of each type of atom present in a single molecule of a compound. For instance, the molecular formula of water is H2O, indicating that each molecule contains two hydrogen atoms and one oxygen atom.
On the other hand, a chemical formula provides a simplified representation of the compound’s composition. It uses the same symbols as the molecular formula but may not specify the exact number of atoms present. For example, the chemical formula for sodium chloride, NaCl, suggests that the compound contains sodium and chlorine in a 1:1 ratio but does not specify the number of atoms in each molecule.
Conciseness and Versatility
Chemical formulas offer a convenient shorthand for representing compounds, particularly when dealing with complex or large molecules. By condensing the molecular formula into a simpler form, chemists can easily convey the essential information while omitting unnecessary details.
Moreover, chemical formulas are valuable in various chemical calculations, such as determining molar mass, predicting reactivity, and understanding chemical properties. They provide a concise tool for comparing compounds, identifying patterns, and classifying substances based on their composition.
Molar Mass: Determining the Molecular Weight of Phosphorus Triiodide
Phosphorus triiodide, with its unique molecular formula of PI3, is a fascinating chemical compound with diverse applications. Its molar mass, a crucial property for understanding its quantitative nature, plays a pivotal role in chemical analysis.
In the realm of chemistry, molar mass represents the mass of one mole of a substance, expressed in grams per mole (g/mol). It is the sum of the atomic masses of all atoms in a molecule. For phosphorus triiodide, we embark on a journey to determine its molar mass.
Phosphorus has an atomic mass of 30.97 g/mol, while iodine boasts an atomic mass of 126.90 g/mol. The molecular formula PI3 indicates three iodine atoms bonded to one phosphorus atom. Therefore, the molar mass of phosphorus triiodide is calculated as:
Molar Mass of PI3 = (1 × Atomic Mass of P) + (3 × Atomic Mass of I)
Molar Mass of PI3 = (1 × 30.97 g/mol) + (3 × 126.90 g/mol)
Molar Mass of PI3 = 411.69 g/mol
This calculation reveals that the molar mass of phosphorus triiodide is 411.69 g/mol. This knowledge empowers us to determine the precise amount of phosphorus triiodide required for various chemical reactions or analytical procedures.
Understanding molar mass is vital for quantitative analysis because it allows scientists to convert between the mass and the number of moles of a substance. By knowing the molar mass, we can determine the exact quantity of a compound needed for a specific experiment or application, ensuring accurate and reliable results.
CAS Number: A Unique Chemical Fingerprint for Phosphorus Triiodide
Imagine a vast library filled with countless books, each representing a different chemical compound. To find a specific book, you need a unique identifier, an address that leads you directly to it. This is precisely the role of the CAS Registry Number.
The Chemical Abstracts Service (CAS) is the world’s authority on chemical information. It assigns a unique CAS Number to every known chemical compound, like a fingerprint that distinguishes it from all others. For phosphorus triiodide, that fingerprint is 12420-53-9.
CAS Numbers are essential tools for scientists and researchers to identify and track chemicals accurately. They are widely used in scientific literature, databases, and regulatory documents. By searching for a CAS Number, you can access a wealth of information about a substance’s properties, hazards, and applications.
Phosphorus triiodide’s CAS Number, 12420-53-9, is like a passport that unlocks a world of knowledge. It grants researchers access to critical information that aids in understanding this compound’s reactivity, toxicity, and potential uses. Whether you’re a chemist exploring the frontiers of science or a concerned citizen seeking information about chemicals in your environment, the CAS Number can guide you towards reliable and comprehensive data.
PubChem CID: A Database Identifier for Phosphorus Triiodide
When exploring the vast world of chemistry, it’s crucial to have access to reliable and comprehensive information about the compounds we encounter. That’s where the PubChem Database comes in, an invaluable resource that houses a wealth of chemical data. Among its many features is the PubChem CID (Compound Identifier), a unique number assigned to each chemical substance. This number serves as a passport into a world of information, and for our focus chemical, phosphorus triiodide, its PubChem CID is 23997.
The PubChem Database is a treasure trove of chemical knowledge, providing a wealth of information on over 100 million chemical compounds. It’s maintained by the National Center for Biotechnology Information (NCBI), part of the National Library of Medicine (NLM), and is freely accessible to the public. Chemists, researchers, and students alike can delve into PubChem’s vast repository, uncovering a wealth of data on chemical structures, properties, bioactivities, and more.
With PubChem CID 23997, we can access a wealth of information specific to phosphorus triiodide. The database offers details on its chemical structure, exact mass, solubility, and various other physical and chemical properties. It also provides links to external resources, such as patents, scientific articles, and safety data sheets. This comprehensive information makes PubChem an indispensable tool for anyone working with or researching phosphorus triiodide.
Through the PubChem Database and its unique PubChem CID system, chemists and scientists have a powerful resource for exploring the molecular world. With a few simple clicks, we can unlock a wealth of information, empowering us to understand and utilize chemicals safely and effectively.
