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16 March, 13:56

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

A. 12.2 g As

B. 73.7 g As

C. 276 g As

D. 459 g As

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Answers (2)
  1. 16 March, 14:36
    0
    Answer: D. 459g As

    Explanation:

    1 mole of Arsenic = 74.9216 grams

    Therefore 6.12 moles of arsenic = x grams

    Cross multiply to get the value of x

    x = 74.9216 x 6.12

    x = 458.8g ≈ 459g

    x = 459g As
  2. 16 March, 15:09
    0
    The answer is D. 459 g As
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