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A 28.0g sample of an unknown metal at 99.0c was placed in a constant pressure calorimeter containing 85.0g of water at 24.0c. the final temperature of the system was found to be 28.4c. Calculate the specific heat of the metal (the heat capacity of the calorimeter is 12.4J/CC
Draw the skeletal structure of the indicated starting material needed for the following reaction.
A spherical fat cell has a diameter of 2.47 micrometers. The fat cell contains three copies of the protein azurin. What is the molar concentration of azurin within the fat cell
If the volume of the ocean (calculated above=6.3x10^20 Liters) contains 2.8 percent sodium chloride ("salt") by mass and the density of the water is 1.16 g/mL, calculate the total mass of sodium chloride. (1ton=2000lb, 1lb=453.6g) Calculate the ma..
Hydrazine, ammonia, and hydrogen azide all contain only nitrogen and hydrogen. The mass of hydrogen that combines with 1.00g of nitrogen for each compound is .144, .216, and .240, respectively.
a sample of propane c3h8 is placed in a closedvessel together with an amount of o2 that is 3.00 times the amount needed
Calculate the radiation dosage (in grays) for an 85-kg person that is exposed for 7.0 seconds to a 3.0 Ci source of beta radiation. Assume that 100% of the radiation is absorbed and each beta particle has an energy of 1.7× 10-13 J.
a gas mixture contains each of the following gases at the indicated partial pressures n2 335 torr o2 124torr and he
calculate the amount of heat absorbed when 50g of ice areheated to produce steam at 100 degrees celsuis. the specific
a gaseous mixture of and contains 34.8 nitrogen by mass. what is the partial pressure of oxygen in the mixture if the
an empty flask has a mass of 123.4 g. when the flask is filled with water the mass is 211.6 g. if 10.0 g of zinc d
a compound is found to contain 39.12 carbon 8.772 hydrogen and 52.11 oxygen by weight. what is the empirical
Describe the process of obrital hybridization as applied to carbon. You must include information on obritals used and produced
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