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The molar mass of copper(II) chloride (CuCl2) is 134.45 g/mol. How many formula units of CuCl2 are present in 17.6 g of CuCl2?
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The molar mass of copper(II) chloride (CuCl2) is 134.45 g/mol. How many formula units of CuCl2 are present in 17.6 g of CuCl2?

User Erica Kane
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2 Answers

6 votes
Im not sure if formula units are equivalent to moles but I am gonna solve this as if they are lol. So 17.6 g is the given. You want to divide by your molar mass to cancel out the grams. Then you are left with moles as the unit for your final answer.

(17.6 g CuCl2 x 1 mol CuCl2)/(134.45 g/mol CuCl2)
User Laaptu
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5.3k points
5 votes

Answer:7.88 x 10^22 formula units

Step-by-step explanation:

User GabyLP
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