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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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OldSpice OldSpice
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Posts: 6432
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9 years ago
What is the number of manganese atoms that equal a mass of 54.94 amu?
A) 1
B) 25
C) 55
D) 6.02 x 1023
E) none of the above
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ElectricElectric
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#1
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9 years ago
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.silent.boss

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OldSpice Author
wrote...
#2
9 years ago
Perfect!

..Thank you so much for your support
wrote...
#3
9 years ago
My pleasure
.silent.boss
Answer rejected by topic starter
Anonymous
wrote...
#4
3 years ago
Given mass of Manganese , m = 54.94 g

Molar mass of Manganese is = 54.94 g/mol

So number of moles of Manganese = mass / molar mass

= 54.94 / 54.94

= 1 mol

We know that 1 mole of any compound contains Avogadro number ( 6.023x1023) atoms. So, 1 mole of Manganese contains 6.023x1023 atoms
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