What is the mass of 9.44 × 10²⁴ molecules of NO₂? The molar mass of NO₂ is 46.01 g/mol.

Question

Quizplus · Accepted Answer

The first step is to calculate the total number of moles of NO₂ molecules: 9.44 × 10^24 molecules / 6.022 × 10^23 molecules/mol = 15.67 mol Next, we can use the molar mass of NO₂ to convert the number of moles to mass: 15.67 mol × 46.01 g/mol = 721 g Therefore, the mass of 9.44 × 10^24 molecules of NO₂ is 721 g. The correct answer is C.

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