Verified answer

1 mol of CCl4 contains 6.022*10^23 molecules

Therefore 1.326*10^12 molecules of CCl4 = (1.326*10^12) /(6.022*10^23) = 2.20*10^-12 mol CCl4

Oh my. A good place to start studying is to understand the terms.

A mole is a number of units. Just like a dozen or a pair.

How many dozen are there in 24 cars?

Only an idiot would think that the answer is 2. There are two dozen cars, but 10 dozen tires (assuming you include the spares). Light bulbs? Screws? Gallons of oil?

Yeah only an idiot doesn't understand that a number without a unit attached means nothing.

One mole is 6.022 x 10^23 units.

How many moles are there in 1.326E12 molecules of CCl4? Moles of what? Molecules? Atoms? Atoms of carbon? Atoms of Chlorine? Electrons? Protons? Neutrons? Quarks?

Up Quarks? Strange Quarks? ............

-=-=-=-

Once you get your act together and figure out what the question is actually asking (most likely how many molecules) you first convert the number of units you have to the number of units specified (in the case of molecules, the number is ALREADY in the right units) and then divide that number by the number of units in one mole. This gives you the fractional number of moles. This is 4th Grade arithmetic.

Just out of curiosity, if I asked you how many dozen donuts were in a box of 5 donuts, could you figure it out? How about a box of 17?

1.326x10^12 molecules CCl4 x (1 mol / 6.022x10^23 molecules) = 2.202x10^-12 moles of CCl4 molecules

*******

note the sig figs. 1.326 has 4... so does 6.022... so the answer is limited (and should be reported to) 4 sig figs

1 mole of anything contains 6.022×10^23 molecules, Avogadro constant

1.326×10^12 molecules / 6.022×10^23 molecules/M = 2.20e-12 moles. or 2.2 µM

Is "Zhi Li" Chinese for " too up my own ****"??