lovebug3214 lovebug3214

01-08-2017
Chemistry

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A pure silver ring contains 5.15×1022 silver atoms. how many moles of silver atoms does it contain? express the number of moles to two significant figures.

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Willchemistry Willchemistry

02-08-2017

1 mole ------------------ 6.02x10²³atoms
(moles) -----------------5.15x10²² atoms

moles silver = ( 5.15x10²²) * 1 / 6.02x10²³ =

moles silver = ( 5.15x10²²) / 6.02x10²³ =

=> 0.085 moles of silver

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