The heat of vaporization of diethyl ether is . Calculate the change in entropy when of diethyl ether boils at . Be sure your answer contains a unit symbol. Round your answer to significant digits.

Based on the law of conservation of energy, which statement is false? answer- energy is lost when machines dont work right

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.

While in europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car’s gas mileage is 32.0 mi/gal? assume that 1 euro=1.26 dollars