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What is the atomic mass of barium due to?

1 Answer

Jan 2, 2018

Atomic mass of barium is around $137.327 u \approx 2.28 \cdot 10^{- 22} g$ $137.327 u ~~2.28*10^-22 g$

Explanation:

The average of all barium isotopes' mass rounds up to $137.327 u$ $137.327 u$ .

$1 u \approx 1.66 \cdot 10^{- 24} g$ $1 u ~~ 1.66*10^-24 g$

Therefore, the atomic mass of barium is $137.327 \cdot 1.66 \cdot 10^{- 24} = 2.28 \cdot 10^{- 22} g$ $137.327 * 1.66*10^-24 =2.28*10^-22 g$

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