GoryStmesay GoryStmesay

14-10-2016
Chemistry

contestada

How many atoms are in 165 g of calcium?

Respuesta :

Willchemistry Willchemistry

23-10-2016

Atomic mass calcium ( Ca ) = 40.078 a.m.u

40.078 g ------------- 6.02x10²³ atoms
165 g ----------------- ??

165 x ( 6.02x10²³ ) / 40.078

=> 2.47x10²⁴ atoms

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