answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nataly [62]
2 years ago
11

The lewis structure of pf3 shows that the central phosphorus atom has ________ nonbonding and ________ bonding electron pair(s)

Chemistry
2 answers:
vfiekz [6]2 years ago
6 0
The Lewis structure of PF3 shows that the central phosphorus atom has one non bonding and three bonding electron pairs. In this compound each Phosphorus atom contributes 5 valence electrons while each fluoride contributes 7 valence electrons making a total of 26 valence electrons. The central Phosphorus atom forms single bonds with each of the fluoride atoms. Phosphorus, therefore ends up with a non-bonding pair since the fluoride atoms already have 8 electrons around them. <span />
ElenaW [278]2 years ago
5 0

Answer :  The Lewis structure of PF_3 shows that the central phosphorus atom has 1 non-bonding and 3 bonding electron pair(s).

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

The number of valence electrons are shown by 'dot'.

The given molecule is, phosphorous trifluoride.

As we know that phosphorous has '5' valence electrons and fluorine has '7' valence electrons.

Therefore, the total number of valence electrons in phosphorous trifluoride, PF_3 = 5 + 3(7) = 26

According to electron-dot structure, there are 6 number of bonding electrons and 20 number of non-bonding electrons.

The Lewis structure of PF_3 shows that the central phosphorus atom has 1 non-bonding and 3 bonding electron pair(s).

The Lewis-dot structure of PF_3 is shown below.

You might be interested in
1. Concentrated HCl is 11.7M. What is the
SSSSS [86.1K]

Answer:

The concentration is 0,2925M

Explanation:

We use the formula

C initial  x V initial = C final x V final

11,7 M x 25 ml = C final x 1000 ml

C final= (11,7 M x 25 ml)/1000 ml = 0, 2925 M

(This formula applies to liquid solutions)

6 0
2 years ago
A gas balloon has a volume of 80.0 mL at 300K , and a pressure of 50.0 kPa. if the pressure changes to 80.0 kPa and the temperat
stellarik [79]

Answer: 53.3

Explanation:

V2=(T2 x P1 x V1)/(T1 x P2)

(320x50x80)/(300x80)

53.3

3 0
2 years ago
Using the following data table and graph, calculate the average k from the data. Amount CO2 (mL) Amount of White Solid (g) y x 1
UkoKoshka [18]
The k is the proportionality constant of the reaction. Graphically, this is the slope of the graph. Since the graph is linear, then there is only 1 value of k. To calculate this, choose two random points in the line. Suppose we use (0.15,10) and (0.30,20), calculate for the slope.

Slope = k = (10 - 20)/(0.15 - 0.30) = 66.67 mL CO₂/g CaCO₃
8 0
2 years ago
Read 2 more answers
what can you say about the average distance from the nuclease of an electron the 2's orbital as compared with a 3s orbital
Alecsey [184]

Answer:

A 3s orbital is at a greater average distance from the nucleus than a 2s orbital

Explanation:

As the principal quantum number n increases, the distance of the orbital from the nucleus increases. Hence if we consider the 2s and 3s orbitals, it is easy to see that the 3s orbital is at a greater distance from the nucleus than the 2s orbitals.

This is clearly seen when we plot the radial distribution against the distance from the nucleus. This enables us to visualize the region in space in which an electron may be found.

7 0
2 years ago
You have two containers of equal volume. one is full of helium gas. the other holds an equal mass of nitrogen gas both gases hav
alexira [117]

Let's assume that both He and N₂ have ideal gas behavior.<span>

Then we can use ideal gas law,
     PV = nRT
Where, P is the pressure of gas, V is the volume, n is moles of gas, R is universal gas constant and T is the temperature in Kelvin.

<span>The </span>P <span>and </span>V <span>are </span>same<span> for the both gases.</span>
R is a constant.

The only variables are n and T.

<span>Let's say temperature of </span>He<span> <span>is </span></span>T</span>₁<span> <span>and temperature of </span></span>N₂<span> <span>is </span></span>T₂.<span>

n = m/M<span> where n is moles, m is mass and M is molar mass.</span>

Molar mass of He is 4 g/mol and molar mass of N₂ is 28 g/mol</span><span>

<span>Since mass (m) of both gases are same,</span>
 moles of He = m/4
 moles of N₂ = m/28</span><span>

Let's apply the ideal gas equation for both gases.
For He gas,
 PV = (m/4)RT₁              </span>(1)<span>

For N</span>₂ gas,<span>
 PV = (m/28)RT₂<span>           </span></span> (2)<span>

(1) = (2)
</span><span>(m/4)RT₁ = (m/28)RT₂</span> <span>
        T₁/4 = T₂/28</span><span>
        T₁    = T₂/7</span><span>
<span>        </span>7T</span>₁  = T₂<span>

Hence, the temperature of N</span>₂<span> gas is higher by 7 times than the temperature of He gas.</span>

8 0
2 years ago
Other questions:
  • Which of the following compounds has the highest pKa value? A)CCl3CH2NH2
    6·1 answer
  • Which environmental factor could lead to a decrease in genetic variation in a population of tuna? A.an increase in food availabi
    12·2 answers
  • A sample of ammonia gas at 75°c and 445 mm hg has a volume of 16.0 l. what volume will it occupy if the pressure rises to 1225 m
    9·1 answer
  • A student wants to form 2‑hexanol using acidic hydration. He finds four alkenes in the inventory cabinet that could be possible
    12·1 answer
  • If a dozen clementine oranges have a mass of 744g, what will be the mass of 15 Clementines?
    5·2 answers
  • A bar magnet and a second object are hung from metal rods. The diagram below shows what happens when both objects are released.
    13·2 answers
  • Calculate the number of molecules in 46.0 grams of water
    8·1 answer
  • Which of the following atoms would have the longest de Broglie wavelength, if all have the same velocity?
    10·1 answer
  • Three structural isomers have the formula C5H12.C5H12. Draw and name the isomers using IUPAC names. Draw the isomer with five ca
    12·1 answer
  • The half-life of the first-order decay of radioac- . 14C . b l:Ive 1s a out 5720 years. Calculate the rate constant for the reac
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!