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Vinil7 [7]
4 years ago
12

Phosphoryl iodide is used in the preparation of organophosphorus derivatives and phosphate esters. select the lewis structure fo

r poi3 that minimizes formal charges.

Chemistry
1 answer:
alex41 [277]4 years ago
7 0
The Lewis Structure of Phosphoryl triiodide with each element having minimum formal charge is shown below,..

In this structure all elements have zero formal charge.

As, Formal charge is given as,,

Formal Charge  =  # of Valence e⁻s - [ e⁻s in lone pairs + 1/2 bonding e⁻s]

For P,

Formal Charge  =  5 - 0 + 10/2  =  0

For O,

Formal Charge  =  6 - 4 + 4/2  =  0

For I,

Formal Charge  =  7 - 6 + 2/2  =  0

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it varies.........................
8 0
3 years ago
In each equation, label the acids, bases, and conjugate acid-base pairs. (Type your answer using the format [NO3]- for NO3-.)
Kamila [148]

Answer:

a) O²⁻ + H₂O <-----> OH⁻ + OH⁻

Acid = H₂O

Base = O²⁻

Conjugate Acid = OH⁻

Conjugate Base = OH⁻

b) HClO₄ + H₂SO₄ <-----> ClO₄⁻ + H₃SO₄⁺

Acid = HClO₄

Base = H₂SO₄

Conjugate Acid = H₃SO₄⁺

Conjugate Base = ClO₄⁻

c) NH₃ + HNO₃ <--> NH4⁺ + NO₃⁻

Acid = HNO₃

Base = NH₃

Conjugate Acid = NH4⁺

Conjugate Base = NO₃⁻

Explanation:

- Acids are molecules or ions capable of donating a proton (H⁺).

- Bases are molecules or ions that readily accept the H⁺ from acids.

- Conjugate Acids, according to the Brønsted–Lowry acid–base theory, are chemical compounds formed after the reception of a proton (H⁺) from an acid by a base.

- Conjugate Bases, Brønsted–Lowry acid–base theory, are the leftovers from when acids donate their proton (H⁺).

4 0
3 years ago
What is the mole ratio of NH3 to N2?
olga_2 [115]

answers : the mole ratio between NH3 : NH2 is 2:1

7 0
3 years ago
What is the mass of a sample of nitrogen trichloride containing 5,500 molecules?
quester [9]
The answer is A
explanation
7 0
2 years ago
Consider the KF molecule, which has an ionic bond. The bond length is 2.17 x 1010 m (a) Calculate the energy required to dissoci
Natasha2012 [34]

Answer:

a) +640 kJ/mol or +1.06x10⁻¹⁸ J

b) +276 kJ/mol

Explanation:

To dissociate the molecule, the bond must be broken, thus, it's necessary energy equal to the energy of the bond, which can be calculated by:

E = (Q1*Q2)/(4*π*ε*r)

Where Q is the charge of the ions, ε is a constant (8.854x10⁻¹²C²J ⁻¹ m⁻¹), and r is the bond length. Each one of the ions has a charge equal to 1. The elementary charge is 1.602x10⁻¹⁹C, which will be the charge of them.

1 mol has 6.022x10²³ molecules (Avogadros' number), so the energy of 1 mol is the energy of 1 molecule multiplied by it:

E = 6.022x10²³ *(1.602x10⁻¹⁹)²/(4π*8.854x10⁻¹²*2.17x10⁻¹⁰)

E = +640113 J/mol

E = +640 kJ/mol

Or at 1 molecule: E =640/6.022x10²³ = +1.06x10⁻²¹ kJ = +1.06x10⁻¹⁸ J

b) The energy variation to dissociate the molecule at its neutral atoms is the energy of dissociation less the difference of the ionization energy of K and the electron affinity of F (EA):

498 = 640 - (418 - EA)

640 -418 + EA = 498

222 + EA = 498

EA = +276 kJ/mol

8 0
4 years ago
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