Determining the expected freezing point
An aqueous solution of a nonelectrolyte boils at 100.32C. What is its expected freezing point?
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Calculate the amount of heat needed to boil 50.6g of ethanol (CH3CH3OH), beginning from a temperature of 24.4C . Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol
A full revolution press has 100 rpm flywheel rotation. The press is equipped with tow hand trip devices mounted on the machine at a distance of 20 inches from the point of operation.
If a bottle of nail polish remover contains 172mL of acetone, how much heat would be released by its complete combustion? The density of acetone is 0.788g/mL .
A gas-filled balloon having a volume of 2.50 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 10-3 atm, respectively. Calculate the
Develop flip flop which is equivalent to the 74x74 positive-edge-triggered flip flop using a 74x109 positive-edge-triggered flip flop. No other component is to be used.
What affect would each of the following changes in procedure have had on the calculated percentage of fat found for your meat product?
(This is the volume that could come out of solution suddenly, causing the painful and dangerous condition called the bends, if the diver were to ascend too quickly.) Assume that Henry's constant for nitrogen at 37°C (body temperature) is 5.8 1
The current supplied by a battery slowly decreases as the battery runs down. Suppose that the current as a function of time is I= ( 0.740 A) e^{- t /6 hr} . What is the total number of electrons transported from the positive electrode to the
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