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Calculate the amount of heat required to completely sublime 73.0 g of solid dry ice (CO2 ) at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 kJ/mol.
The half-life of a certain radioactive element is 1,250 years. What percent of the atoms remain after 7,500 years?
A voltaic cell is based on the reaction Sn(s)+ I2 (s) --> Sn^2+ (aq)+ 2I^- (aq). Under standard conditions, what is the maximum electrical work, in joules, that the cell can accomplish if 70.0 g of Sn is consumed?
Draw all of the structural (constitutional) isomers for one of the alkanes and name each isomer for C10H22. I just need Six and I do not get this
At a certain temperature, a volume of 100 mL of saturated barium carbonate solution contains 0.00216 g of BaCO3 (MW=197.3 g/mol).
What are the units of the rate constant? c) What is the average value of the rate constant calculated from the three data sets?
A sample of laughing gas occupies 500.0Ml at a standard temperature and pressure . what volume will the gas occupy at 95.0oC and 525 torr.
how many liters of 13.5 molar HCl stock solution are needed to make 10.5 liters of a 1.8 molar HCl solution?
How many milliliters of .02 M HCl are used to completely neutralize 20.0mL of .01 M NaOH solution?
Atomic absorption spectrometry was used with the method of standard additions to determine the concentration of cadmium in a sample of an industrial waste stream. For the addition, 5.00 ?L of a 1000.0 ?g/mL
When we extrapolate concentration dependent values to zero solute concentration, what do these extrapolated values mean physically
A compound contains 69.94 percent iron and 30.06 percent oxygen. What is its molecular formula if the molar mass of the compound is 199.55 grams per mole?
Determine what is the coordination of the cations in the case of a normal spinel and what point defects are possible in the spinel structure?
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