How many atoms of carbon are contained in 47.6 g of Al₂(CO₃)₃? The molar mass of Al₂(CO₃)₃is 233.99 g mol^-1. A) 1.23 × 10²³C atoms B) 2.96 × 10²⁴C atoms C) 2.87 × 10²⁵C atoms D) 1.10 × 10²⁴C atoms E) 3.68 × 10²³C atoms

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Quizplus · Accepted Answer

First, calculate the moles of Al₂(CO₃)₃: 47.6 g / 233.99 g/mol = 0.203 moles. Each formula unit of Al₂(CO₃)₃ contains 3 carbon atoms, so there are 0.203 moles × 3 = 0.609 moles of carbon atoms. Convert moles of carbon to atoms: 0.609 moles × 6.022 × 10²³ atoms/mole = 3.68 × 10²³ carbon atoms.

How Many Atoms of Carbon Are Contained in 47