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Question

what is the mass of 324 moles of copper(II) chloride?

Answer 1

The formula of this compound has to be CuCl₂. Find the molar mass of 1 Cu + 2 I: 134.4 g. Dimensional analysis gives (324 mol CuCl₂) * (134.4g CuCl₂ / 1 mol CuCl₂) = 43,500 g or 43.5 kg of copper(II) chloride.