Respuesta :

Because the question is asking moles of NH3, the compound, any subscripts are irrelevant. It only wants to know how many moles of NH3 molecules, not individual atoms.

Therefore, we can simply convert to moles. 1.5x10^23/6.022x10^23 = .249 moles of NH3.

(If it were to ask moles of Hydrogen, for example, you would multiply the answer by 3, because there are 3 atoms of Hydrogen per one molecule of NH3. But this only asks for moles of the entire compound).  

hope you have a great day! :)

.249 moles are in 1.5 x 10^20 molecules of [tex]NH_3[/tex].

What is a mole?

A mole is a very important unit of measurement that chemists use. A mole of something means you have 602,214,076,000,000,000,000,000 of that thing, like how having a dozen eggs means you have twelve eggs.

To solve this equation, you will use Avogadro's constant (6.02 x 10^23) to convert the number of molecules to moles. we need to divide the molecules given by this constant:

[tex]\frac{1.50 X 10^2^3}{6.02 X 10^2^3}[/tex] = .249

So, the answer is .249 moles.

Learn more about mole here:

https://brainly.com/question/26416088

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