300 G H₂O at an Unknown Temperature Is Mixed with 27.0

question 36

Multiple Choice

30.0 g H₂O at an unknown temperature is mixed with 27.0 g of water at 15.8°C in a coffee-cup calorimeter.If the final temperature of the mixture is 29.1°C,what is the initial temperature of the water?

• A) 23.7°C
• B) 31.1°C
• C) 39.7°C
• D) 41.1°C
• E) 46.7°C

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