Find mass of 3g atom magnesium
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Posted by Surya Pra 8 years, 7 months ago
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Naveen Sharma 8 years, 7 months ago
Ans. Molecular mass if Magensium = 24.3
So No of Atoms in 24.3 g of Magnesium = {tex}6.022 \times 10^{23}{/tex}
No of Atoms in 1 g of Magnesium = {tex}6.022\times 10^{23}\over 24.3{/tex}
No of Atoms in 3 g of Magnesium = {tex}{6.022\times 10^{23}\over 24.3}\times 3{/tex}
= {tex}0.743 \times 10^{23}{/tex}
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