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Calculate the density of helium in a helium balloon at 34.7 degrees C. (Assume that the pressure inside the balloon is 1.19 atm) answer is in g/ml
Calculate the pressure when the volume is 1.22 L and the temperature is 307 K.
what mass of hydrogen peroxide should result when 1.29 g of barium peroxide is treated with 25.0 ml of hydrochloric
Refer to the periodic table and select the symbol of the element that fits each of the following descriptions: a) the group IVA/14 semimetal in the fourth period.
a solution of ethanol c2h5oh in water is prepared by dissolving 63.0 ml of ethanol density 0.79 gcm3 in enough water
Trichlorofluoromethane (CCl3F) boils are 23.8C and its molar heat of vaporization is 24.8 kj/mol. Calculate the molar entropy of evaporation of CC3F (l)
what mass of H2O is required to form 1.6 l of O2 at a temperature of 273 k and pressure of .936 atm
Enter the net ionic equation, including phases, for the reaction of AgNO3(aq) with Ba(OH)2(aq).
a sample of water of 27.0 grams at the temperature of 290. kelvin is combined with 49.0 grams of water at 32 degree
How would you prepare 1.0L of an aqueous solution of sodium chloride having an osmotic pressure of 29atm at 27 degrees celsius. How many grams of NaCl are necessary
Briefly outline a procedure you could use to determine the HC2H3O2 concentration in a vinegar sample
If the densities of 20%, 50% and 70% solutions are 0.69 and 0.58 and 0.49 g/mL, respectively, and the denisty of the unknown solution is 0.50 g/mL, what is the approximate concentration of the unknown solution.
61.5 mL of 0.11 M sodium hydroxide were required to completely neutralize 23.7 mL of sulfuric acid. Calculate the concentration of the sulfuric acid solution
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