Calculate the y-component of the center of mass of the following molecule. Answer in Angstroms (Ă), a distance unit. The atomic mass unit is u. (Note: the atoms used here might not exist in nature.)

Problem 6 (a) (b) (c) (d) In the illustrations shown, all of the structures are stat- ically indeterminant except which of the following? (a) a (b) b (c) e (d) d

#4

A K* and a CI- ion are separated by 0.52 nm. Find the Coulomb component of the binding energy at that distance. Give your answer in electron-volts. (Please include the appropriate sign.) A positive binding energy would mean the ions are unbound and a negative binding energy means they are bound. Note: For this homework problem, round your answer to 2 decimal places.

For a 40 wt.% Sn60 wt.% Pb alloy at 150\deg C, (a) what phase(s) is (are) present? (b) What is (are) the composition(s) of the phase(s)? (c) What is (are) the relative amount of the phase(s) in terms of mass fraction?

find the unit for K

If we have 35.54L of O2 gas at STP, how many moles of this gas do we have?  Note:  it is understood that the unit of your answer is some number of moles, however do not explicitly include units in your answer.  Enter only a number.  If you do enter a unit ("mol" in this case), you answer will be counted wrong.  (STP means "standard temperature and pressure," which is 1 atmosphere of pressure or 101,325 Pa, and 273K).