<span>Ans- bond with the highest bond energy is for ( C=C \rightarrow 620 (kJ/mol) N=N \rightarrow 418 (kJ/mol) Si=O \rightarrow 452 (kJ/mol) O=O \rightarrow 498.7 (kJ/mol) C=N \rightarrow 615 (kJ/mol) C=C \rightarrow 620 (kJ/mol)</span>

8 0

4 years ago

Resonance Structures are ways to represent the bonding in a molecule or ion when a single Lewis structure fails to describe accu

AleksandrR [38]

Answer:

See explanation

Explanation:

A Lewis structure is also called a dot electron structure. A Lewis structure represents all the valence electrons on atoms in a molecule as dots. Lewis structures can be used to represent molecules in which the central atom obeys the octet rule as well as molecules whose central atom does not obey the octet rule.

Sometimes, one Lewis structure does not suffice in explaining the observed properties of a given chemical specie. In this case, we evoke the idea that the actual structure of the chemical specie lies somewhere between a limited number of bonding extremes called resonance or canonical structures.

The canonical structure of the carbonate ion as well as the lewis structure of phosphine is shown in the image attached to this answer.

8 0

3 years ago

A vessel of volume 100 cm3 contains 0.25 mol o2 and 0.034 mol co2 at 10.0c. Calculate the partial pressure of each component and

Artyom0805 [142]

Answer: The partial pressure of oxygen is 76.56 atm , partial pressure of carbon dioxide is 10.44 atm and the total pressure is 87 atm.

Explanation:

According to the ideal gas equation:'

$PV=nRT$

P = Pressure of the gas = ?

V= Volume of the gas = $100cm^3=0.1L$ $1L=1000cm^3$

T= Temperature of the gas = 10°C = 373 K

R= Gas constant = 0.0821 atmL/K mol

n= moles of gas= 0.25 +0.034 = 0.284 moles

$P=\frac{nRT}{V}=\frac{0.284\times 0.0821\times 373}{0.1}=87atm$

$x_{O_2}$ = mole fraction of oxygen= $\frac{\text {moles of }O_2}{\text {moles of }O_2+\text{moles of }CO_2}=\frac{0.25}{0.25+0.034}=0.88$ ,

$x_{CO_2}$ =mole fraction of carbon dioxide= $\frac{\text {moles of }CO_2}{\text {moles of }O_2+\text{moles of }CO_2}=\frac{0.034}{0.25+0.034}=0.12$

partial pressure of oxygen = $p_{O_2}=x_{O_2}\times P=0.88\times 87=76.56atm$

partial pressure of carbon dioxide= $p_{CO_2}=x_{CO_2}\times P=0.12\times 87=10.44atmatm$

The partial pressure of oxygen is 76.56 atm , partial pressure of carbon dioxide is 10.44 atm and the total pressure is 87 atm.

8 0

3 years ago

Compared to 1 liter aqueous solution with a ph of 7, a 1 liter aqueous solution with a ph of 5.0 contains

Annette [7]

Each unit of pH represents a change by a factor of 10. Thus in a pH of 5, there would be 100x the concentration of Hydrogen ions in solution.

The correct option would be 2.

6 0

3 years ago