2) what is the mass of 6.02 x 1023 atoms of arsenic?

Question

asked Dec 19, 2018 116k views

1 Answer

Znelson · Answer 1 · 2018-12-23T18:48:28+0000

Data:
Arsenic Molar Mass = 74,9216 ≈ 75 u (atomic mass unit)

Solving:

1 mole of arsenic → 75g ------------ 6,02*10²³ molecules
..................................X -------------- 1 molecule

6,02*10²³X = 75

x = (75)/(6,02*10^(23))

$\boxed{x \approx 1,24*10^(24)grams}$

2) what is the mass of 6.02 x 1023 atoms of arsenic?

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