How many moles of Nickel is needed which will completely melt at 3, 120 J of heat. The enthalpy of fusion of nickel is 298 J/g.?
回答 (2)
2018-01-13 8:34 pm
Mass of nickel melted at 3,120 J of heat = (3,120 J) / (298 J/g) = 10.47 g
Molar mass of nickel = 58.7 g/mol
No. of moles of nickel melted at 3,120 J of heat = (10.47 g) / (58.7 g/mol) = 0.178 mol
Molar mass of nickel = 58.7 g/mol
No. of moles of nickel melted at 3,120 J of heat = (10.47 g) / (58.7 g/mol) = 0.178 mol
2018-01-13 7:37 pm
Each gram takes 298 J to melt, so 3120 J will melt how many grams?
Then convert grams of Ni to moles of Ni by dividing with molar mass of Ni.
Then convert grams of Ni to moles of Ni by dividing with molar mass of Ni.
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