When 107 g of water at a temperature of 23.5 °C is mixed with 65.8 g of water at an unknown temperature, the final temperature of the resulting mixture is 47.8 °C. What was the initial temperature of the second sample of water? (The specific heat capacity of liquid water is 4.184 J/g ⋅ K.)

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When 107 g of water at a temperature of 23.5 °C is mixed with 65.8 g of water at an unknown temperature, the final temperature of the resulting mixture is 47.8 °C. What was the initial temperature of the second sample of water? (The specific heat capacity of liquid water is 4.184 J/g ⋅ K.)

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