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How many moles of nitrate ions are present in a sample that contains 4.82 moles of chromium(III) nitrate, Cr(NO3)3
If a system consists of two subsystems, one with 5 microstates and one with 10 microstates, how many microstates are in the whole system?
If 30.0mL of 0.500M KOH are needed to neutralize 10.0mL of HCl of unknown concentration, what's the molarity of HCl?
How do standard additions and calibration curves differ in quntification? What are the advantages and disadvantages of each?
what is the value of delta G at 25 C for this reaction
where b and R are constants. If the pressure and temperature are such that Vm = 10b, what is the numerical value of the compression factor?
The mass of an electron is 9.11 times 10^{-31}kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31times 10^{-10} how fast is the electron moving relative to the speed of light? The speed of light is 3.0 times10^8 m/s.
report the total heat needed and the heat needed for each individual step in the process.
The reaction of 0.130 moles of a metal with an acidic aqueous solution in a calibrated calorimeter causes the temperature to increase by 49.0°C.
Draw a Lewis Structure for C3O2. Draw a Lewis Structure for C2H3NO5
Nitric acid is usually purchased in a concentrated form that is 70.3% HNO3 by mass and has a density of 1.41 g/mL
When a sample of aqueous hydrochloric acid was neutralized with aqueous sodium hydroxide in a calorimeter, the temperature of 100.0 g of water surrounding the reaction increased from 25.0°C to 31.5°C.
During a strenuous workout, an athlete generates 2200.0 kJ of heat energy. What mass of water would have to evaporate from the athlete's
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