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A piece of metal with a mass of 4.2 g is heated to 100 degrees celesius and then placed in a coffee cup calorimeter that is initially 22.8 degrees celsius. Calculate the specific heat of the metal in J/g if the final temp is 24.2 degrees celscius. The heat capacity of the calorimeter is 651 j/c
Calculate the specific heat of a metallic element if 314 joules of heat energy are needed to raise the temperature of a 50.0 gram sample from 25 degrees celsius to 50 degrees celsius.
How many grams of calcium carbonate are needed to produce 374mL of carbon dioxide gas at STP in the following reaction?
the molecule 2,2-dimethylheptane, draw Newman projections of the most and least stable forms of 2,2-dimethylheptane, viewing doen the C3-C4 bond, label th energy vs conformation angle diagram
If 145 mL of 1.10 M KCl are diluted to 515 mL, what is the molarity of the final solution?
If a drop of water clings to the outside of the foil cap and is not removed, how would the experimentally determined molecular weight be affected? Too high or too low?
The activity of a radioactive sample is the number of nuclear disintegrations per second, which is equal to the first-order rate constant times the number of radio-active nuclei present.
Write an expression for the quantity 506000 cm in which it is clear that all the zeros are significant.
Dichloromethane has a specific gravity of 1.33: a) What is the mass (kg) of 75 liters? b) What is the volumetric flow rate (L/min) of the dichloromethane entering a storage tank if the mass flow rate is 960 kg/min.
With a solution in them connected by a liquid salt bridge junction filled with KNO3. In one solution you have a graphite electrode that is connected with a wire to a copper electrode in the second soution. The soution in contact with the graphite ..
A solution of hydroiodic acid is 0.057 M HI. What is the hydronium-ion concentraion at 25 degrees C?
What is the concentration of Co2 ions at equilibrium? Assume the formation constant of Co(NH3)62 is 5.0× 1031.
A light year is the distance light travels in 1.00 year. Given the velocity of light 1.86x10^5 mi/s. How many miles does the light travel in a light year
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