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A gas occupies a volume of 1.0 L at a temperature of 27°C and 500 torr pressure. calculate the volume of the gas if the temperature is changed to 60°C and the pressure to 700 torr
Extraction procedures have shown that nitrogenase contains an iron-sulfur cluster, Fe4S4, where the atoms of each type are arranged alternatively at the corners of a cube.
Assuming the structures above gave molecular ion abundances of 12, 70, and 23(dexchlorpheniramine, 9-aminoacridine and pilocarpine, respectively), what abundances would you expect for the M+1 and the M+2 peaks for each structure?
60.0 mL portion of of 1.70 M solution is diluted to a volume of 288 mili litres. A 144-mili litres portion of that solution is diluted using 115 mLili litres of H2O. Determine the final concentration.
What is the kinetic energy of this soccer baal? Mass of soccer ball is= 0.38 kg and fits this description out of these four given cations ?
sucrose solution is allowed to react for 195 minutes then determine the mass of sucrose that is hydrolyzed?
used in high speed centrifuges to separate the parts of a biological cell. How many liters of 3.07 M sucrose contain 245 g of solute?
Important information about balanced chemical equation, 1. If 1 mole of Al4C3 has a mass of 144g and carbon has a mass of 12g, what is the atomic mass of aluminum?
The pH of uncontaminated rain water is about 5.6. The pH of rain falling in Cleveland, OH is 4.2 and that in Omaha, NE is 5.5. What is the concentration of hydrogen ions in the rainfall of each city? [H] 6.3 ^ -5 for Cleveland.
Consider the reaction HgS + O2 → SO2 + Hg. If 200.0 grams of HgS reacted with 150.0 grams of O2, what is the limiting reagent.
Calculate the amount of heat in J required to heat 2.00 grams of ice from -12.0 C to 88.0 C. The heat of fusion of water is 6.02 kJ/mol the specific heat capacity of ice is 2.09 J/gC
What volume of oxygen gas at 25 degrees Celcius and 1.00 atm is produced from the decomposition of 22.33 mL of a 30.0% (by mass) solution of hydrogen peroxide?
A copper wire (density = 8.96 g/cm3) has a diameter of 0.26 mm. If a sample of this copper wire has a mass of 43 g, how long is the wire?
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