How much heat was transferred and in which direction
If the internal energy of a thermodynamic system is increased by 300. J while 75 J of expansion work is done, how much heat was transferred and in which direction, to or from the system?
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What is the formal charge on the sulfur atom in the resonancestructure of SO2 that has one single bond and one doublebond?
Diethyl ether has a vapor pressure of 400.0 torr at 18°C. When a sample of benzoic acid is dissolved in ether, the vapor pressure of the solution is 342 torr. What is the mole fraction of benzoic acid in the solution?
How many minutes does it take light from the sun to reach the Earth? (The distance from the sun to Earth is 93 million mi; the speed of light is 3.00 x 10to the 8th power m/s.)
The crystallization front typically travels at a constant speed through the solution until it reaches the boundaries of the system, then stops. What order of rate law is described by this behavior?
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A 10ml sample of pure Orange Juice was diluted with 40ml of metaphosphoric acid solution. Then 10ml of diluted juice was titrated to an endpoint with 9.27ml of DCIP.
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The temperature difference between the inside and the outside of an automobile engine is 450C. Express this temperature difference on the F scale and the K scale.
A compound consists of 93.75% carbon and 6.25% hydrogen. The substance dissolves in benzene, and 6.14 g of it lowers the freezing point of 100 g of benzene 2.45 Celsius.
A mixture of A and B is found to obey Raoult's Law. At 60 degrees celcius the vapor pressure of pure A is 400 mm HG and that of pure B is 650 mm HG. Find the composition of the vapor phase above a solution of 35.0 mol % A in B at 60 degrees celciu
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