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2.1417 x 103 mg of a homoatomic diatomic ideal gas occupies a volume of 1.37 x 103 cc at a temperature of 25 deg C and a pressure of 16.14 in. Hg Explain What is the identity of the gas?
Write a balanced equation for the decomposition reaction described, using the smallest possible integer coefficients. When calcium carbonate decomposes, calcium oxide and carbon dioxide are formed.
Calculate the molar concentration of a solution prepared by dissolving 2.34 g of sodium sulfate (MW = 142) in enough waterto make 250 ml of solution.
if 1.56g of a gas has a volume of 1.00 l at .984 atm and 50 degrees celcius what is the molar mass of the
Calculate the number of moles of ammonia absorbed by a boric acid solution if 3.25 ml of 0.0025 M H2SO4 were needed to titrate the solution to the end point ( Assume both hydrogens of the sulfuric acid react.)
How would your calculated value of Kc compare to the actual value if the determination of absorbance were done on a solution that had been placed in a cell that was wet on the inside with rinse water. Explain.
In a calibration of a calorimeter, 50.0 g of water at 60.0 c is added to 50.0 g of water at 20.0 c to give a mixture at 39.0 c. what is the heat capacity of the calormieter used in this experiment. If calorimeter has a mass of 5.4 g, what is it sp..
State the balance equation for the reaction and compute the enthalpy change for this reaction (in kJ/mol) if the temperature of the solution increases from 22.2 degrees C to 44.8 degrees C
The mole fraction of KNO3 in an aqueous solution is .0194. The density of the solution is 1.0627 g/mL. Calculate the molarity of the solution.
13.00 g of sodium surface is dissolved in water to make a solution. What volume of solution in L is produced if the amount of concentration is 0.45 mol/L
The solubility of phenanthrene in methanol is 0.133M. How many grams of Phenanthrene do i need to make 10ml solution
What is the molar mass of a gas if 1.15 g of gas has a volume of 225 mL at 0 degrees C and 1.00 atm (STP)
If it takes 526 J of energy to warm 7.40 grams of water by 17 degrees Celsius, how much energy would be needed to warm 7.40 grams of water by 55 degrees Celsius?
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