https://comojogaruno.com/what-is-the-final-temperature-when-200-g-of-water-at-250-c-is-mixed-with-300-g-of-water-at-800-c-in-a-calorimeter
What is the final temperature when 20.0 g of water at 25.0 C is mixed with 30.0 g of water at 80.0 C in a calorimeter?