What is the mass of 6.12 moles of arsenic (As)?

How do we calculate the mass of a substance using the number of moles and its molar mass?

The mass of 6.12 moles of arsenic (As) is 459 grams.

Mass Calculation

MASS CALCULATION: The mass of a substance can be calculated by multiplying the number of moles in the substance by its molar mass. That is; Mass = no. of moles × molar mass According to this question, 6.12 moles of arsenic (As) is given. The molar mass of arsenic (As) is 74.92g/mol Mass of As = 6.12 mol × 74.92 g/mol Mass of As = 458.5g Therefore, the mass of 6.12 moles of arsenic (As) is 459 grams.
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