Answer:
77.6 g are the mass of silver
Explanation:
This is a calorimetry problem, All the heat released by the silver was gained by the water, so the T° has increased.
Q = m . C . ΔT
mass from silver . 0.056 cal/g°C . (26.2°C - 58.5°C) = 100 g . 1 cal/g°C (26.2°C - 24.8°C)
mass from silver . 0.056 cal/g°C .-32.3°C = 100 g . 1 cal/g°C . 1.4°C
mass from silver . -1.8032 cal/g = 140 cal
mass from silver = 140 cal / 1.8032 g/cal
mass from silver = 77.6 g