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?

the answer is true.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.

it's 3.2 on edge, i just took the test.