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If air's density is 1.29 g/l define what three gaseous elements if place in a balloon would cause the balloon to rise in air as well as what three elements would cause the balloon to sink in air?
a .1276 g sample of a monprotic acid, molar mass 1.10 x 10^2, was dissolved in 25 mL of water and titrated with .0633 M NaOH. After 10 mL if base had been added the pH was determined to be 5.27. What is the Ka for the acid
calculate the pH formed by mixing 100 mL of 0.20 M HCL with 50 mL of 0.30 M NaOH.
Determine the synthesis of 3-hexanol starting from acetylene. Use your book and choose the reagents. It will take several steps and many reagents to get to the product.
What is the magnitude of the change in pH when 0.005 moles of HCl is added to 0.100 L of a buffer solution that is 0.100 M in CH3CO2H and 0.100 M NaCH3CO2?
What pH will would measure for these solutions immediately? What would be the pH after the solutions equilibrate with the atmosphere
What is the estimated value of the Faraday using the values for: a.) the electrode that gains silver? b.) the electrode that loses silver
Calculate the values of E for the cell when the following volumes of the ce4+ titrant hav been added:(Activity coefficients may be ignored as they tend to cancel when calculating concentration ratios). 1.50 ml 20.0 ml 39.0 ml 40.0 ml 44.0 ml 80.0 ..
the labels of bottles that contain barium hydroxide, hydrochloric acid and sodium carbonate had fallen off. When the contents of the bottle A were mixed with B's Contents, a white precipitate formed, A with C yielded a gas and B with C gave heat.
n-butane vapor and liquid are in equilibrium (boiling) at 18.66 bars. Use the Peng-Robinson equation of state to determine the saturated liquid and saturated vapor molar volumes
Suppose that 50.0g of Zinc and 50.0g of Iodine are used to form Zinc (II) Iodide. Answer the following questions: (A) What is the limiting reagent?
at 500 degrees celsius cyclopropane rearranges to propene. the reaction if first order and the rate constant is 6.7 x
You measure its osmotic pressure in an osmometer at 2.746 atm at 25 degrees C. What is the concentration of the sodium cloride solution in units of g/L
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