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29-09-2016
Chemistry

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how many atoms are in 165 g of calcium?

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Willchemistry Willchemistry

07-10-2016

Atomic mass Calcium = 40.078 a.m.u

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

165 x ( 6.02x10²³) / 40.078 => 2.47x10²⁴ atoms

hope this helps!

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