How many moles of sulphur are there in 64 grams of the element?

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A. 1
B. 2
C. 3
D. 4

B. 2

Here’s how we can find the number of moles:

  1. Molar mass of Sulphur (S): 32 grams per mole (g/mol)
  2. Given mass of Sulphur: 64 grams (g)

Formula:

Number of moles (mol) = Mass (g) / Molar mass (g/mol)

Calculation:

Number of moles (mol) = 64 g / 32 g/mol = 2 mol

Therefore, there are 2 moles of sulphur in 64 grams of the element.

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