Question

what is the final temperature if the metal beads, weighing 200.0 g, heated to 100 degree celsius is placed in a calorimeter that contains 80.g of H2O at 20.0 degree celsius? the specific heat if the metal is 0.385 l/g degree celsius.

Answer 1

Answer on Question #75718 – Chemistry – General Chemistry

What is the final temperature if the metal beads, weighing 200.0 g, heated to 100 degree celsius is placed in a calorimeter that contains 80.g of H₂O at 20.0 degree celsius? The specific heat if the metal is 0.385 J/g degree celsius.

Solution:

Qlost by metal = Qgained by water + Qgained by calorimeter

(200.0 g) (100 °C - x) (0.385 J g⁻¹ °C⁻¹) = (80.0 g) (x - 20.0 °C) (4.184 J g⁻¹ °C⁻¹)

7700 – 77x = 334.72x – 6694.4

411.72x = 14394.4

x = 35 °C

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