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Your 300 mL cup of coffee is too hot to drink when served at 89 ∘C....

Your 300 mL cup of coffee is too hot to drink when served at 89 ∘C. What is the mass of an ice cube, taken from a -24 ∘C freezer, that will cool your coffee to a pleasant 64 ∘C? Express your answer using two significant figures. Answer is in grams. Please step by step help

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