Question

if one mole of carbon contains X atoms what is the number of atoms contained in 12 gram of Mg?
01x
0.5x
02x
1.5x

Answer 1

Answer:

answer is 0.5x

no. of moles of Mg=given mass/molar mass

=12/24

=1/2

1 mole=x atoms

1/2 mole=0.5x atoms

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Answer 2

Answer:

0.1X

Explanation:Atomic number of carbon = 12

Molar mass of carbon= 12g

Therefore 12 gram of carbon means 1 mole of carbon

No of atoms = 12/12 × X

= 1X