rate of change A stent is a cylindrical tube, often made of metal mesh,thats inserted into a blood vessel to overcome a constriction. Its sometimes necessary to heat the stent after insertion to prevent cell growth that could cause the constriction to recur. One method is to place the patient in a changing magneti…
Organic Chem Lab 4-t-butyl-cycolehxanol needed instead of isoborneol ( URGENT!) The vapor pressure (VP) of ethanol is 400mmHg at 63.5 degrees celsius. Its molar heat of vaporization is 39.3kj/mol. What is vapor pressure of ethanol, in mmHg at 34.9 degrees celsius. – use the equation lnVp= -H evap/RT + C
Chemistry 1302 A certain substance has a heat of vaporization of 44.01 kJ/mol. At what Kelvin temperature will the vapor pressure be 4.50 times higher than it was at 289 K?
finding the vertex, focus, directrix, axis of symmetry Find the vertex, directrix, and axis of symmetry. y^2 + 10y + 6x + 23 = 0 vertex? focus? directrix? axis of symmetry? focal diameter?
Latent heat and phase change The excess internal energy of metabolism is exhausted through a variety of channels, such as through radiation and evaporation of perspiration. Consider another pathway for energy loss: moisture in exhaled breath. Suppose you breathe out 20.0 breaths per minute, each with a volume of 0.540 L. Suppos…
–need help nothing works A cubical box of widths Lx = Ly = Lz = L = 4.82 nm contains eight electrons. What is the energy of the ground state of this system? Assume that the electrons do not interact with one another, and do not neglect spin.
Atomic valencies Please explain and solve HOW you got the answers and I will rate for those that do. Use atomic valencies to draw plausible chemical structures for molecules with the following molecular formulas: a) C3H8O b) C3H6
application with vectors the resultant of two forces acting on a body has a magnitude of 80 pounds. the angles between the resultant and the forces are 20 degrees and 52 degrees. find the magnitude of the larger force.
relativistic momentum consider the electrons of a speed .99999999967c of produced by the stanford linear accelerator, what is the magnitude of momentum of such an electron?
ECET 230 I would like the questions that are answer checked and the questions that aren’t done finished Attachments: Homework-06.doc