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Tju [1.3M]
3 years ago
13

A piece of unknown metal with mass 68.6 g is heated to an initial temperture of 100°C and dropped in 84 g of water (with an init

ial temperture of 22°C) in a calorimeter. The final temperture of the system is 52.1°C. The specific heat of water is 4.184 J/g*°C. What is the specific heat of the metal?
A. 0.171
B. 0.343
C. 1.717
D. 3.433
Chemistry
1 answer:
SIZIF [17.4K]3 years ago
8 0
It should be, C. 1.717
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Iodine is 80% 127I, 17% 126I, and 3% 128I. Calculate the average atomic mass of Iodine.
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<h3>The average atomic mass of Iodine : 126.86 amu</h3><h3>Further explanation</h3>

Given

80% 127I, 17% 126I, and 3% 128I.

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Atomic mass of Iodine = 0.8 x 127 + 0.17 x 126 + 0.03 x 128

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