URGENT LOOK AT PICTURElook at the thing and choose all that matches

1 answer:

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Answer:

BRAINLIEST PLEASE

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castortr0y [4]

Moles = 4.03 x 10^21
------------------------
6.02 x 10^23

= 6.69 x 10^-3 moles.
Hope this helps!

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3 years ago

maw [93]

Answer: The volume of the gas is 178.76 L

Explanation:

The ideal gas equation is given as:

.......(1)

where

P = pressure of the gas = 675 torr

V = volume of gas = ?

n = number of moles of gas = 6.45 moles

R = Gas constant = 62.36 L.torr/mol.K

T = temperature of the gas = $27^oC=[27+273]K=300K$

Putting values in equation 1, we get:

$675torr\times V=6.45mol\times 62.36L.torr/mol.K\times 300K\\\\V=\frac{6.45\times 62.36\times 300}{675}=178.76 L$

Hence, the volume of the gas is 178.76 L

3 0

3 years ago

Svetllana [295]

<h3>Answer;</h3>

Dipole-dipole and hydrogen bonding

<h3>Explanation;</h3>

A solution of water and ethanol contains the dipole-dipole forces and hydrogen bonds as the intermolecular forces between molecules.
Hydrogen bonding is a type of interactions between molecules that occurs when a partially negative atom such as oxygen end of one of the molecules is attracted to a partially positive hydrogen end of another molecule.
Dipole-dipole forces results from the unsymmetrical distribution of electrons, thus the polarity does not balance, thus resulting to a dipole attraction between molecules.

5 0

3 years ago

juin [17]

The particles are atoms, his theory is the atomic theory

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3 years ago

Ratling [72]

Yes, you're right the answer is 0,02 moles.

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