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jasminetaylor4587
03.03.2021 •
Chemistry
Number of atoms in a 95.0 g sample of a gold nugget
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Ответ:
2.9 * 10^23 atoms Au
Explanation:
(95 g Au) * (1 mol Au/196.96657) * (6.02 * 10^23 atoms Au / 1 Mol Au)
2.9 * 10^23 atoms Au
Ответ:
mass of water is 7.43 g
Explanation:
q = mc∆T
qsteam = 100 g × 1.864 J/(g °C) × (110 – 100) °C = 1864 J
qwater = mwater× 4.184 J/(g °C) × (95 – 35) °C = mwater× 251.04 J/g = qsteam = 1864 J
mwater = 1864 J / 251.04 J/g = 7.43 g