How many hydrogen atoms are contained in 10 moles of (C5H5)2 ZrCl2?
Let x be the number of hydrogen atoms in 10 moles of (C5H5) 2ZrCl2
One mole of compound contains----> 10*6.023*1023 atoms
10 moles of compound contains-----> x
Cross multiply
X= 10*10*6.023*1023
X= 6.023*1025 hydrogen atoms
Avogadro number= 6.023*1023
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