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For a second-order rxn: 2A ? B Given: [Ao] = 0.650 M and at 45 seconds [A] = 0.1.15 M. What would be the rxn rate when [A] = 0.297 M?
Write the balanced chemical equation and determine How much propane is required to cook a pork roast that needs 1.6x10 3 kJ
For a particular reaction it was found that the reaction rate was 16 times faster at 35oC than it was at 25oC. It was also found that the equilibrium constant at 25oC was four times bigger than it was at 35oC.
Which one of the following reactions is a combination reaction. a. A + B -› AB b. AB + CD -› AD + CB c. HX + BOH -› BX + H2O d. A + BC -› B + AC e. AB -› A + B
An empty volumetric flask, weighing 60.42 grams, weighed 309.60 grams when filled with water. After emptying the water and drying the flask
Helium is collected over water at 25°C and 1.00 atm total pressure. What total volume of gas must be collected to obtain 0.563 g of helium? (At 25°C the vapor pressure of water is 23.8 torr.)
determined for MgO to be the same as the one determined by another student
Determine the empirical formula and the molecular formula of a compound that has the compostion of 80.0% C and 20.0% H. The molecular mass is 240.6 g.
What is the free energy change, ?G°, for the equilibrium between hydrogen iodide, hydrogen, and iodine at 453°C? Kc = 0.020
Treatment of the lipids with the enzyme lipase can be used to hydrolyze fatty acid ester linkages Treatment with glycosyl hydrolase enzymes can be used to hydrolyze glycosidic bonds or other acetal/ketal functionalities
To what pH should a solution that is 0.075 M each in Ca2+ and Cd2+ ions be adjusted in order to best separate ions by precipitation of one of the hydroxides. What are the concentrations of the metal ions after the pH is adjusted to this value
sodium vapor lamps used for public lighting emit yellow light of wavelength 580 nm. how much energy is emitted by an
hydrogen gas is produced when zinc reacts with sulfuric acidnbsp if 162 of wet is collected over water at 24 and a
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