The density of a 10.127 molal ethanol/water solution (ethanol is C2H6O, FW 46.07) is 0.9392 g/mL at 20 ˚C. Calculate the mass percent of ethanol in the solution at 20 ˚C.

Given the following information: mass of proton = 1.00728 amu mass of neutron = 1.00866 amu mass of electron = 5.486 × 10^-4 amu speed of light = 2.9979 × 10^8 m/s calculate the nuclear binding energy (absolute value) of 3li^6. which has an atomic mass of 6.015126 amu. j/mol.