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The reactant concentration in a zero-order reaction was 9.00×10-2M after 175 s and 4.00×10-2M after 325 s. What is the rate constant for this reaction?
The mass spectrum of an organic compound shows the relative abundances of M to be 36.44% and M 1 to be 8.277%. Assuming the peaks are caused by 12C and 13C isotopes
Hydrogen phosphate buffer, Buffer solutions have the unique ability to resist changes in PH when an acid or base is added to them. One important buffer system that helps to maintain blood pH at a constant value of 7.4 is the hydrogen phosphate buf..
Calculate the final volume of a 0.500 L gas container that increased in temperature from twenty six degree Celsius to sixty degree celsius while the pressure increased from 760 torr to 1170 torr?
You dissolve 650.0 g of sugar (C12H22O11) in 726 mL of water. The density of wat is 1.00 g/mL.
Why Do I Require More CaCO3 to Raise pH than Predicted? If you can remember back to a discussion and inquiry we exchanged last week concerning the use of sodium carbonate vs. calcium carbonate
Calculate the amount of heat required to completely sublime 61.0 g of solid dry ice CO2 at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 {kJ}/{mol}.
The combustion of alkanes, alkenes and alkynes produces, A. water and carbon. B. carbon dioxide and hydrogen. C. oxygen and hydrogen. D. hydrogen and water. E. carbon dioxide and water.
What is the solubility product constant? Given Ksp = 1.1 x 10^-3 for BaF2(s), calculate the molarity of Ba+2 in a saturate solution of BaF2 (at equilibrium).
A cubic meter of a gravel-and-sand aquifer has been contaminated with 20 L of tetrachloroethylene. If the amount of tetrachloroethylene dissolved in aquifer water is 20 percent of its aqueous solubility,
After 42 days a 2.0 g sample of phosphorus 32 contain only 0.25 g of the isotopt. what is the half life of the phosphours 32 ?
Should you install a solar water heater? The average home has a 200 liter hot-water tank, which is effectively drained and replenished three times per day.
The atomic mass of element X is 33.42 amu. A 21.83-g sample of X combines with 80.32 g of another element Y to form a compound XY. Calculate the atomic mass of Y.
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