Answered

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Determine the number of:
(a) atoms in 5.0 g of silver, Ag.
(b) carbon atoms in 0.50 mol of ethane, C2H4.​

Sagot :

rspill6

Answer: Ag:  2.79x10^22 atoms

              C atoms:  6.02x10^23 C atoms

Explanation:

5.0 grams of Ag is 0.0464 moles of Ag.  (0.0464 moles)*(6.02x10^23 atoms/mole) = 2.79x10^22 atoms Ag

(0.50 moles)*(6.02x10^23 molecules/mole)*(2 C atoms/molecule) = 6.02x10^23 atoms of C

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