30g of element x contains 18.069×1023 atoms of x. Calculate gram-molecular mass of x2

Here;30×6.023×1023×218.069×1023=20g

30g of element x contains 18.069×1023 atoms of x. Calculate gram-molecular mass of x2

Here;30×6.023×1023×218.069×1023=20g

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$30 g$ of element x contains $18.069 \times 10^{23}$ atoms of x. Calculate gram-molecular mass of $x_{2}$

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20 amu

10 amu

10 g

20 g

answer is D.

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Here;

$\frac{30 \times 6.023 \times 10^{23} \times 2}{18.069 \times 10^{23}} = 20 g$

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30g of element x contains 18.069×1023 atoms of x. Calculate gram-molecular mass of x2

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$30 g$ of element x contains $18.069 \times 10^{23}$ atoms of x. Calculate gram-molecular mass of $x_{2}$