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If a heated metal block is placed into a beaker of water, what is the relationship between the final temperatures of the water and the metal block?
The most common source of copper is the mineral chalcopyrite. How many kilograms of chalcopyrite must be mined to obtain 320. of pure copper?
What is the rate constant for the reaction at 85°C?
how many millimoles of HNO3 are needed to react completely with a .2800 gram piece of copper wire.
What are the masses of CO and CO2 in the tank and what are the partial pressures of each of the three gases at 24C?
We use Use the De Broglie wavelength formula, ohr radius definition and wave-particle duality equation to compute the wavelength of,
How long would a current of 100.0 amp need to be passed through a AlF3 electrolysis cell to produce 40.0 g of aluminum metal?
A solid laboratory unknown contains two substances, lead(II) carbonate and potassium carbonate. A 5.000 g sample of this unknown was treated with aqueous nitric acid to dissolve it, then, after further treatment to adjust the acidity, it was treat..
what is the theoretical and percent yields of ethanol if 648 grams of sucrose undergoes fermentation and 349 grams of ethanol is obtained.
Compute the heat amount required to heat a 3.9kg gold bar from 28 degree Celsius to 68 degree Celsius. Given Specific heat capacity of gold = 0.128 J/g°C.
A graduated cylinder contains 148 of water. A 17.0 piece of iron (density = 7.86 ) and a 19.0 piece of lead are added. What is the new water level in the cylinder?
A piece of metal of mass 27 g at 99?C is placed in a calorimeter containing 45.1 g of water at 21?C. The final temperature of the mixture is 38.7?C.
In a high-altitude city, the normal atmospheric pressure is 619.0 torr. Use the Clausius-Clapeyron equation to estimate the boiling point of water in this city. The heat of vaporization of water is 40.70 kJ/mol.
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