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of moles, n = mass in grams / atomic mass

Atomic mass of Cd = 112.4 g/mol

n = 18.2 g / 112.4 g/mol = 0.16 mol

Answer: 0.16 mol


Answer;

= 0.16 moles

Explanation;

1 mole of an element contains mass equivalent to its atomic mass.

The molecular mass of Cadmium is 112.411 g

Moles = mass in grams / molecular weight  

Thus, the moles in 18.2 grams will be;

Moles = 18.2 / 112.411  

= 0.161 moles

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