How many aluminum atoms are there in 52 g of Al₂S₃? A)4.2 × 10²³ B)1.6 × 10²¹ C)2.1 × 10²³ D)1.1 × 10²¹ E)6.3 × 10²³

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Quizplus · Accepted Answer

The molar mass of Al₂S₃ is approximately 150 g/mol. Therefore, 52 g of Al₂S₃ is about 0.347 moles. Since each mole of Al₂S₃ contains 2 moles of Al atoms, there are approximately 0.694 moles of Al atoms. Using Avogadro's number (6.022 × 10²³ atoms/mol), this equals approximately 4.2 × 10²³ aluminum atoms.

How Many Aluminum Atoms Are There in 52 G of Al2S3

How Many Aluminum Atoms Are There in 52 G of Al₂S₃