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A cube of ice is taken from the freezer at -7.5°C and placed in a 101 g aluminum calorimeter filled with 282 g of water at room temperature of 20°C. The final situation is observed to be all water at 16°C. What was the mass of the ice cube?

  • phy - ,

    The sum of heats gained is zero.

    let m be the mass of the ice cube

    m*specificheatice*(7.5)+m*Lfice+101*spcificheatAl*(16-20)+282specificheatwater*(16-20)=0

    check that.

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