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Vanyuwa [196]
3 years ago
6

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

Chemistry
1 answer:
kozerog [31]3 years ago
5 0

Answer:

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BRAINLIEST PLEASE

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Convert the following to number of moles: 4.03 x 10^21 molecules present in AgNO3
castortr0y [4]
Moles = 4.03 x 10^21
             ------------------------
                6.02 x 10^23
 
           =      6.69 x 10^-3 moles.
Hope this helps!


6 0
3 years ago
Find the volume of 6.45 moles of gas present at a temperature of 27.0oC and a pressure of 675 torr.
maw [93]

<u>Answer:</u> The volume of the gas is 178.76 L

<u>Explanation:</u>

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
What kinds of intermolecular forces are present in a mixture of ethanol (ch3ch2oh) and water?
Svetllana [295]
<h3><u>Answer;</u></h3>

Dipole-dipole and hydrogen bonding

<h3><u>Explanation;</u></h3>
  • <em><u>A solution of water and ethanol contains the dipole-dipole forces and hydrogen bonds as the intermolecular forces between molecules.</u></em>
  • <em><u>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.</u></em>
  • <em><u>Dipole-dipole forces</u></em> 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
Read 2 more answers
John dalton proposed a theory that all matter is made up of individuals particles which cannot be divided. what were those parti
juin [17]
The particles are atoms, his theory is the atomic theory
3 0
3 years ago
How many mole of H2 will be produced if 0.500 grams of magnesium is reacted with 10.00mL of 2.0 M HCl?
Ratling [72]
Yes, you're right the answer is 0,02 moles.
7 0
3 years ago
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