Monthly Archives: December 2013
How much energy (in kilojoules) is released when 7.40g of water at 39.0∘C is cooled to -18.0∘C? The heat of fusion of water is 6.01 kJ/mol, and the molar heat capacity is 36.6 J/(K⋅mol) for ice and 75.3 J/(K⋅mol) for liquid water.
The length of a unit-cell diagonal that passes through the center atom in tungsten is equal to 549 pm.
What is the radius (in picometers) of a tungsten atom?