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Naily [24]
2 years ago
6

How do I figure out polarity? thanks!​

Chemistry
2 answers:
OlgaM077 [116]2 years ago
7 0

Answer:

With some chemical knowledge, you can fairly easily guess if a molecule will be polar or not. Each atom will have a different level of electronegativity, or ability to attract electrons. Actually calculating the polarity of a molecule precisely, however, requires determining the shape of the molecule and performing vector addition. The length of each vector will correspond to the electronegativity of the atom in each bond. The direction of the vector will correspond to molecular shape.

   Draw the molecule in standard chemical format, with all atoms and free electrons shown in the drawing.

   Determine the shape of the molecule. With one or two bonded atoms, the molecule will be linear. With two bonded atoms and unbonded electrons, the molecule will be angular. With three bonded atoms and no free electrons, the molecule will be flat triangular. With three bonded atoms and a set of free electrons, the molecule will be triangular, pyramidal. With four bonded atoms, the molecule will be pyramidal.

Related

How to Know If a Compound Is Polar or Non-Polar?

Updated April 24, 2017

By David Ward

With some chemical knowledge, you can fairly easily guess if a molecule will be polar or not. Each atom will have a different level of electronegativity, or ability to attract electrons. Actually calculating the polarity of a molecule precisely, however, requires determining the shape of the molecule and performing vector addition. The length of each vector will correspond to the electronegativity of the atom in each bond. The direction of the vector will correspond to molecular shape.

   Draw the molecule in standard chemical format, with all atoms and free electrons shown in the drawing.

   Determine the shape of the molecule. With one or two bonded atoms, the molecule will be linear. With two bonded atoms and unbonded electrons, the molecule will be angular. With three bonded atoms and no free electrons, the molecule will be flat triangular. With three bonded atoms and a set of free electrons, the molecule will be triangular, pyramidal. With four bonded atoms, the molecule will be pyramidal.

   

Determine the electronegativity of each atom in the molecule. Use a standard measurement, such as a centimeter per whole unit of electronegativity, to determine the length of each vector.

Draw a vector of the appropriate length for each atom that you determined vector length. Draw them facing the direction they would face in the molecule, according to the shape determined in Step 2.

Line up the vectors end to end. The distance between your starting point and the final vector is the measurement of polarity in the molecule. For example, if you used 1 cm per whole unit of electronegativity, and your final distance between the last vector and your starting point is 5 mm, the molecule has a polarity of 0.5 in that direction.

Explanation:

Blizzard [7]2 years ago
5 0

Si and F is the answer.

Brainliest?

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Supersonic flight can cause molecules on the surface of an airplane to break
MAVERICK [17]
I think it’s , D. This can cause sonic booms that can damage building structures
6 0
3 years ago
What is the molarity of 1 mole of HCl in 5 liters of solution?
kicyunya [14]
Molarity = moles of solute(HCl)
                  ------------------------------------
                   volume of the solution
               
                =   1
                    ------
                     5 
               
                =  0.2M.

Hence option B is correct.
Hope this helps!!
5 0
2 years ago
Read 2 more answers
4. Juan tiene un cilindro de 40 libras herméticamente cerrado con gas propano y lo conecta mediante una válvula a otro cilindro
ch4aika [34]

Answer:

Ver explicacion

Explanation:

Cuando el cilindro de 40 libras está conectado al cilindro de 100 libras, generamos una presión que continúa hasta que los dos cilindros alcanzan la misma presión de gas en equilibrio. Recuerde que el cilindro de 100 libras estaba inicialmente vacío. Esto significa que su presión inicial es 0. El cilindro de 40 libras ya estaba lleno, por lo que dividimos esta cantidad en dos para tener en cuenta su distribución entre los dos cilindros.

Ahora tenemos 20 libras de gas propano presentes en cada cilindro. La implicación de esto es que, en el cilindro de 100 libras, necesitamos 80 libras adicionales para completar las 100 libras.

5 0
2 years ago
Which method would be best to separate a mixture of oil and water?
rosijanka [135]

Answer:

distillation ​

Explanation:

Actually, distillation is used to separate liquids from nonvolatile solids, as in the separation of alcoholic liquors from fermented materials, or in the separation of two or more liquids having different boiling points, as in the separation of gasoline, kerosene, and lubricating oil from crude oil.

7 0
2 years ago
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