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A system that had work done on it but which receives or loses no heat from or to the surroundings has
A. w < 0, E > 0
B. w = - E
C. w > 0, E < 0
D. w = E
A chemical reaction releases 58,500 J of heat into 150 g of water. Assuming no heat is lost to the surroundings
In a seperate trial the student puts 214 mL of the same liquid into the same flask at the same conditions. What will the pressure measure (in kPa) in the second trial?
State what these are, how they are made, and one way they can be used productively in research and one way they can be used in medical diagnostics.
The water level in a graduated cylinder was at 211 rises initially it raised to 270 after adding a piece of lead is submerged. Determine the mass in grams of the lead?
If you have 240.0 mL of water at 25.00 °C and add 100.0 mL of water at 95.00 °C, what is the final temperature of the mixture.
Determine How many moles of Fe 3 O 4 could be formed if 9.00 mol iron react with 12.00 mol Oxygen and determine How many grams of methane is required to form 45.5g CHcl 3 ?
If you start with 2 cubes of ice, each with a mass of 25.0g and at a temperature of -10C, and 25.0ml of water with a temperature of 100C, what will the final temperature of the mixture be? Assume fina l state is liquid water for all species.
The Cd2+ was displaced from EDTA by the addition of an excess of CN-. Titration of the newly freed EDTA required 29.2 mL of 0.0120 M Ca2+ . What were the molarities of Cd2+ and Mn2+ in the original solution
calculate the molar absorptivity (epslion) of Cu2+ at 620nm given that the curvettes used in lab had a pathlegth of 1.00 cm.
predict whether a reaction will occur in each of the following. if so write the balanced chemical equation as well as the net ionic equation. Phases are all required for all species.
Alcohols can be dehydrated to alkenes with sulfuric acid and alkenes can be used to prepare alcohols using sulfuric acid detail both mechanisms and explain the differences
What is the mole fraction of acetone, C3H6O, in the vapor phase from a solution consisting of a mixture of acetone and ethyl acetate, CH3COOCH2CH3, at 30.00 °C, if the total pressure above the solution is 184.6 torr?
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