The volume of a gas can be converted to moles by
A. dividing by 6.02 × 1023.
B. dividing by the ideal gas law constant.
C. multiplying by .
D. multiplying by the ideal gas law constant.

Work = force × a. work b. energy c. distance d. momentum

An electron is trapped at a defect in a crystal. the defect may be modeled as a one-dimensional, rigid-walled box of width 1.00 nm. (a) sketch the wavefunctions and probability densities for the n 1 and n 2 states. (b) for the n 1 state, nd the probability of nding the electron between x1 0.15 nm and x2 0.35 nm, where x 0 is the left side of the box. (c) repeat (b) for the n 2 state. (d) calculate the energies in electron volts of the n 1 and n 2 states

Estimate of the number of stars in our galaxy