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05-12-2019
Chemistry

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How many atoms are in 35.12 grams of gold?

Please show your work

Respuesta :

sarafafatai205 sarafafatai205

05-12-2019

Answer: 1.08 x 10^23 atoms

Explanation:

To find the no of moles in 35.12g of Au

no. of moles = mass/atomic mass

= 35.12/197

= 0.18 moles

1 mole of Au = 6.02 x 10^23

0.18 moles of Au = 0.18 x 6.02 x 10^23

=1.08 x 10^23 atoms

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