wandabrown974 wandabrown974

15-05-2020
Chemistry

contestada

How many moles is 1.25 x 1024 atoms of bromine?

Respuesta :

Leora03 Leora03

15-05-2020

Answer:

2.08 moles (3 s.f.)

Explanation:

number of moles

= number of atoms ÷ Avogadro's constant

Avogadro's constant= 6.022 ×10²³

Thus, number of moles

= 1.25×10²⁴ ÷ (6.022 ×10²³)

= 2.08 moles (3 s.f.)

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