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Each mole of C2H6O will have 6.022 E23 molecules present. That means that in 3.25 moles, there are 1.957 E24 molecules present.

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Avogadro's constant says that in one mole there are 6.022 E23 instances of something. So in 4.25 moles, there are 2.56 E24 molecules of CCl4.

Full formal set up.

1 mole CCl4 (4 mole Cl/1 mole CCl4)(6.022 X 1023/1 mole Cl)(1 mole Cl atoms/6.022 X 1023)

= 4 moles Cl atoms

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1 mol of Cl2, weighs 70.1 g.

So 4.5 mol of Cl2 weighs 315.45 g

Multiply it by Avogadro constant. There are 7.5275*10^23 molecules

1 mole CO2 = 6.022 x 1023 molecules CO2

3.25mol CO2 x (6.022 x 1023 molecules CO2)/1mol CO2 = 1.96 x 1023 molecules CO2

3.25* (6.022* 10^23)= (1.96*10^24)

The answer is 3,683 molecules.

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Q: How many molecules are present in 4.25 mol of CCl4?

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425 kA m-1

It is 218.33... (repeating) deg C.

Let us find moles first. Molarity = moles of solute/Liters of solution ( 750 ml = 0.750 Liters ) 0.375 M Na2SO4 = moles Na2SO4/0.750 Liters = 0.28125 moles Na2SO4 =================== 0.28125 moles Na2SO4 (142.05 grams/1 mole Na2SO4) = 39.95 grams Na2SO4 needed ---------------------------------------you do significant figures!

Sublimation is the transition of a substance from solid to gas without becoming a liquid first. To determine when this will happen you must find a phase diagram of the particular substance you are working it. There is something called the triple point, a particular pressure and temperature at which all three phases can technically exist. If you find a point below this, and a pressure and temperature at which a liquid wont exist whatever you are working with will go straight from solid to gas.

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