Antifreeze in cars is usually made by mixing ethylene glycol, hoch2ch2oh, with water to make a 50.% meolume solution. if the specific gravity of ethylene glycol is / 1.113, calculate a) the boiling and b) the freezing point of this solution. assume that water is the solvent. 4. using the solution made in problem 3, calculate the a) k and b) ke for ethylene glycol assuming it is the solvent. 5. calculate the molecular mass of ethylene glycol if a 150 g sample is placed into 250 g of ethyl alcohol, which has a boil ing point of 78°c and the resulting mixture has a boiling point of 89.8°c. 6. based on the formula for ethylene glycol, hoch2ch2oh, what is its calculated molecular mass to 3 decimal places? am 5 ond 6 do not match exactly?

How many orbitals does the p sub shell container

The earth's moon is unusually large. two popular theories of the moon's origin include the "sister world" hypothesis, which states that the moon formed from the same materials as the earth, near enough to the earth that they fell into orbit around each other. a second theory is the "capture" hypothesis, in which the moon formed elsewhere in the solar system, and the earth's gravity pulled it into its orbit. studies of what the moon is made of indicate that some of its materials had to come from the earth or from the same area of the solar system where the earth had formed. at the same time, the moon does not contain much of the material that makes up the earth's core, so the moon could not have formed from the same materials as the earth. how do the two facts above affect the described theories of the moon's origin? a. they show that scientists will never agree on where the moon came from. b. they show that more experiments on moon formation need to be done. c. they show that no theory accounts for the existence of the moon. d. they show that neither theory is complete and entirely correct.

Type the letter that represents the correct location for each particle type below.