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How many moles of pcl3 contain 3.68 × 1025 chlorine atoms?

Kaitlin Dean

in Chemistry

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Samantha Barber on November 15, 2018

To answer the question above, we must bear in mind first that every mole of PCl₃ contains 3 atoms of Cl. In the first place, divide the given number by 3. 3.68 x 102⁵ / 3 = 1.227 x 102⁵ Then we divide the result by the number of Avogadro, which is equal to 6.022 x 1023. That is to say, 1.227 x 102⁵ / (6.022 x 1023) = 20.37 therefore, there is 20.37 mol of PCl₃.


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