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AveGali [126]
4 years ago
9

Which formula represents a polar molecule

Chemistry
1 answer:
natita [175]4 years ago
4 0

NH3

well I got this from an old chem test so Im sure its right

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Diagram how a solids molecular structure is different from a liquids molecular structure
ratelena [41]

Pretty much, for solids draw the molecules close together and rigid, for liquids, the molecules are spaced apart a little and not all lined up

7 0
3 years ago
8. If 0.795 moles of ammonia gas occupies 42.5 L at 670 torr, what is the Celsius temperature?
maksim [4K]

<u>Answer:</u> The temperature in degree Celsius is 301.31°C

<u>Explanation:</u>

To calculate the temperature, we use the equation given by ideal gas, which is:

PV=nRT

P = pressure of the gas = 670 torr = 0.882 atm   (Conversion factor: 1 atm = 760 torr)

V = volume of gas = 42.5 L

n = number of moles of gas = 0.795 mol

R = Gas constant = 0.0821\text{ L atm }mol^{-1}K^{-1}

T = temperature of gas

Putting values in above equation, we get:

0.882atm\times 42.5L=0.795mol\times 0.0821\text{ L atm }mol^{-1}K^{-1}\times T\\\\T=574.31K

Converting the temperature from kelvins to degree Celsius, by using the conversion factor:

T(K)=T(^oC)+273

574.31=T(^oC)+273\\T(^oC)=301.31^oC

Hence, the temperature in degree Celsius is 301.31°C

6 0
3 years ago
What is the mass of 4.25 liters of N2 gas at STP?
sukhopar [10]

We know that 1 mole of anything has a volume of 22.4 liters.

And 1 mole of N2 gas has a weight of 28 grams.

Comparing them , we get the answer as 5.31

7 0
3 years ago
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Problem 1. (Temperature and thermal equilibrium) Temperature is an indicator of: a. Total energy of the molecules in the system
horrorfan [7]

Answer:

The average kinetic energy of the molecules in the system

Explanation:

According to the kinetic theory of matter, the particles of a system are in constant motion and collide steadily with one another as well as with the walls of the container.

The average kinetic energy of these molecules in motion is referred to as the temperature of the body. Hence, temperature is a measure of the average kinetic energy of the molecules of a body.

6 0
3 years ago
The ___________ of the glass of water on the table is its force.<br><br> A) Mass<br> B) Weight
kirill115 [55]
B.) Weight.

Weight is the combination of gravity on mass, thus it produces a force. (gravity is the force)
4 0
3 years ago
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