Question

mass of mg atom in grams​

Answer 1

Answer:

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Answer 2

Answer:.

Mass of one atom of magnesium weigh 3.9\times 10^{-23}g3.9×10−23g

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to its molecular mass and contains avogadro's number 6.023\times 10^{23}6.023×1023 of particles.

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given atoms}}{\text{Avogadro's number}}=\frac{1}{6.023\times 10^{23}}=0.16\times 10^{-23}atomsNumber of moles=Avogadro’s numberGiven atoms=6.023×10231=0.16×10−23atoms

1 mole of magnesium weighs = 24.305 g

0.16\times 10^{-23}0.16×10−23 moles of Zinc weigh = \frac{24.305}{1}\times 0.16\times 10^{-23}=3.9\times 10^{-23}g124.305×0.16×10−23=3.9×10−23g

Thus mass of one atom of magnesium weigh 3/9\times 10^{-23}g3/9×10−23g