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A sample containing 2.00 mol of graphite reacts completely with a limited quantity of oxygen at 25 degrees C and 1.0 atm pressure, producing 481 kJ of heat and a mixture of CO and CO2. Calculate the masses of CO and CO2 produced.
One mole of any gas has a volume of 22.414 L at STP. What are the densities of the following gases in g/L at STP
calculate the de broglie wavelength of an electron in the ground state of the h atom. show that this wavelength is
Describe how you will separate the following mixture of ions in solution. Include an explanation/rationale of the reagent used.
Describe in detail how you would prepare 300 mL of aqueous 0.200M sodium sulfate. What mass of sodium sulfate is needed
Write the net ionic equations and calculate the enthalpy of neutralization for the net ionic equations:
Which of the following reactions best describes the acid-base properties of acetic acid (HC2H3O2) in aqueous solution
A balloon filled with helium has a volume of 2.41 L on a warm day at 311 K. It is brought into an air-conditioned room where the temperature is 295 K. What is its new volume.
The combustion of 0.1584 grams of benzoic acid increases the temperature of a bomb calorimeter by 2.45 (degrees) C. Calculate the heat capacity of this calorimeter.
Suppose it had been decided that the Avogadro constant should be recalculated as the number of gold atoms in 197.00g of gold. Gold is a desirable standard because it is not very reactive and because it is not very reactive and because it has only ..
Titration of 0.1756 g of primary standard Na2C2O4 required 32.04 mL of a KMnO4 solution. Calculate the concentration of KMnO4. Hint: to work this problem you have to write & balance the redox reaction involved
show the calculation of calculating the volume of 6M NaOH required to react compeletly with 2.00mmol of methyl salicylate
From the understanding of colligative properties, how would I design an experiment to measure the freezing point of a material which freezed at -2'c using the same apparatus used in the laboratory and any chemical reagents commonly found in a chemi..
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