tamwisegamgee tamwisegamgee

02-11-2019
Chemistry

contestada

Consider a sample containing 0.740 mol of a substance. How many atoms are in the sample if the substance is lead?

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francesconedved1987 francesconedved1987

02-11-2019

Answer:4.45 x10^23 atoms to 2 decimal places

Explanation:

No of moles=no of atoms/Avogadro's

constant

Hence 0.740=no of atoms/6.02x

10^23

So no of atoms=0.740x6.02x10^23 atoms

=4.4548x 10^23 atoms

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