How many grams of benzene, C6H6, can be melted with 42.5 kJ of heat energy? The molar heat of fusion of benzene is 9.95 kJ/mol.?
回答 (1)
2016-02-24 9:33 am
No. of moles of C₆H₆ melted = (42.5 kJ) / (9.95 kJ/mol) = 4.27 mol
Molar mass of C₆H₆ = (12×6 + 1×6) g/mol = 78 g/mol
Mass of C₆H₆ melted = (78 g/mol) × (4.27 mol) = 333 g
Molar mass of C₆H₆ = (12×6 + 1×6) g/mol = 78 g/mol
Mass of C₆H₆ melted = (78 g/mol) × (4.27 mol) = 333 g
收錄日期: 2021-04-18 14:29:55
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