A 20-g ice cube floats in 230 g of water in a 100-g copper cup; all are at a temperature of 0°C. A piece of lead at 94°C is dropped into the cup, and the final equilibrium temperature is 12°C. What is the mass of the lead? (The heat of fusion and specific heat of water are 3.33 x 105 J/kg and 4,186 J/kg · °C, respectively. The specific heat of lead and copper are 128 and 387 J/kg · °C, respectively.) kg Need Help? Read It Master It

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A 20-g ice cube floats in 230 g of water in a 100-g copper cup; all are at a temperature of 0°C. A piece of lead at 94°C is dropped into the cup, and the final equilibrium temperature is 12°C.
What is the mass of the lead? (The heat of fusion and specific heat of water are 3.33 x 10° J/kg and 4,186 J/kg · °C, respectively. The specific heat of lead and copper are 128 and 387 J/kg ·
°C, respectively.)
kg
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Transcribed Image Text:ASK YOUR TEACHER PRACTICE ANOTHER A 20-g ice cube floats in 230 g of water in a 100-g copper cup; all are at a temperature of 0°C. A piece of lead at 94°C is dropped into the cup, and the final equilibrium temperature is 12°C. What is the mass of the lead? (The heat of fusion and specific heat of water are 3.33 x 10° J/kg and 4,186 J/kg · °C, respectively. The specific heat of lead and copper are 128 and 387 J/kg · °C, respectively.) kg Need Help? Read It Master It
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