An unknown alcohol is analyzed by freezing point depression. The unknown is either methanol(CH3OH) ethanol(C2H5OH) or propanol (C3H7OH). A solution of 10.187g of the unknown and 100 mL of water freezes at -4.2C. What is the identity of the alcohol? I just don’t know where to plug in the molar masses into the equation

When molecules of water vapor in the air come in contact with a cold can of soft drink , they lose energy ,slow down,and form a liquid due to decrease in ?

The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.

How many significant figures are in the following numbers ? a. 0.0002030 b. 2.000 c. 2.008900 d. 145.00