A hypothetical element X has only two stable isotopes X1 (34…

A hypothetical element X has only two stable isotopes X1 (34.969 amu) and X2 (36.966 amu).  X1 has a natural abundance of 75.77%.  Calculate the average atomic mass of the element.  Mark your answer next to words “Final answer is”.  You must follow significant figure rules.  Show your work here to receive full credit.

A particle travels at a very high speed of 2.998×108 meter/s…

A particle travels at a very high speed of 2.998×108 meter/second.  What is its speed in terms of miles/minute? (1 minute = 60 seconds)   Mark your answer next to words “Final answer is”.  You must follow significant figure rules.  Show your work here to receive full credit.

You put a 0.05% glucose solution inside dialysis tubing and…

You put a 0.05% glucose solution inside dialysis tubing and tie the ends with thread.  This 0.05% solution is then lowered into a beaker containing a 5% solution of glucose.  Assuming the dialysis tubing is permeable to water but not glucose, what will happen and why?