2.What is Cl3PO Lewis Dot Structure. Explain briefly
3.The temperature –60 °C is higher than –60 °F. explain briefly and choose correct one
A. True.
B. False.
The Correct Answer and Explanation is :
2. Lewis Dot Structure of Cl₃PO
The chemical formula Cl₃PO represents phosphoryl chloride, a compound consisting of one phosphorus (P) atom, one oxygen (O) atom, and three chlorine (Cl) atoms. To determine its Lewis dot structure, follow these steps:
- Calculate Total Valence Electrons:
- Chlorine (Cl) is in Group 17 and has 7 valence electrons.
- Phosphorus (P) is in Group 15 and has 5 valence electrons.
- Oxygen (O) is in Group 16 and has 6 valence electrons.
- Total valence electrons = (3 × 7) + 5 + 6 = 32 electrons.
- Determine the Central Atom:
- Phosphorus (P) is less electronegative than oxygen (O) and chlorine (Cl), making it the central atom.
- Draw the Skeleton Structure:
- Place phosphorus (P) at the center.
- Attach the three chlorine (Cl) atoms to phosphorus using single bonds.
- Attach the oxygen (O) atom to phosphorus using a double bond.
- Distribute Remaining Electrons:
- Each chlorine atom has 3 lone pairs of electrons, totaling 18 electrons.
- The oxygen atom has 2 lone pairs of electrons, totaling 4 electrons.
- The phosphorus atom has no lone pairs in this structure.
This arrangement satisfies the octet rule for chlorine and oxygen atoms. Phosphorus, being in period 3, can accommodate more than 8 electrons, allowing it to form an expanded octet.
For a visual representation and a more detailed explanation, you can refer to the following video:
3. Is –60°C Higher Than –60°F?
Answer:
B. False.
Explanation:
To compare temperatures in Celsius (°C) and Fahrenheit (°F), we need to convert one scale to the other.
Conversion Formula:
The relationship between Celsius and Fahrenheit is given by the formula:
[ \text{°F} = (\text{°C} \times \frac{9}{5}) + 32 ]
Converting –60°C to Fahrenheit:
[ \text{°F} = (-60 \times \frac{9}{5}) + 32 ]
[ \text{°F} = (-108) + 32 ]
[ \text{°F} = -76 ]
Therefore, –60°C is equivalent to –76°F.
Conclusion:
Since –60°F is higher than –76°F, –60°C is lower than –60°F. Therefore, the statement is false.
Understanding the relationship between Celsius and Fahrenheit is crucial, especially in scientific contexts where precise temperature measurements are essential.
For a more in-depth explanation and additional examples, you can refer to the following resource: