Calculate the heat given off by the burning
A 0.1375 -g sample of solid magnesium is burned in a constant -volume bomb calorimeter that has a heat capicity of 3024 J/C. the temp increases by 1.126 C . Claculate the heat given off by the burning Mg in KJ/g and in KJ/mol
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A metal has a threshold frequency of 7.5x10^14 hz. Determine the wavelength (m) of the electron emitted from the metal exposed tolight of wave length 206 nm.
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A 0.1375 -g sample of solid magnesium is burned in a constant -volume bomb calorimeter that has a heat capicity of 3024 J/C. the temp increases by 1.126 C . Calculate the heat given off by the burning Mg in KJ/g and in KJ/mol
A tuner first tunes the A string very precisely by matching it to a 440Hz tuning fork. She then strikes the A and E strings simultaneously and listens for beats between harmonics. What beat frequency indicates that the E string is properly tuned?
Element X crystallizes in a body-centered cubic lattice. Its atomic mass is 59 amu. The edge length of a unit cell of X is 0.28A.Calculate the radius of an X atom and the density of X ing/cm3.
If she has no astigmatism and contact lenses are prescribed for her, what power lens is required to correct her vision?
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