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A compound decomposes by first order process. If 25% of the compound decomposes in 60 minutes, the half life of the compound is _ minutes?
Acetylene gas, , burns in oxygen to produce carbon dioxide and water. If 60.4 g of CO2 are produced when 22.62 c2h2 react with sufficient oxygen, what is the percent yield for the reaction
Write the net ionic equation to show the formation of a precipitate (insoluble salt) when the following solutions are mixed. Write noreaction if no insoluble salt forms KCl(aq)+Pb(NO3)2(aq)
For the reaction: N2(g) + 2 O2(g) ?? 2 NO2(g), Kc = 8.3 × 10-10 at 25°C. What is the concentration of N2 gas at equilibrium when the concentration of NO2 is twice the concentration of O2 gas
Find the PH of the final mixture when a solution containing two weak acids, i.e., 4mM ethylene (Kb1=4.72x10-4) and 2mM ethylene (Kb2=10-4) is titrated with twice its volume of 3mM HCL
Sirius, the brightest object on the night sky besides the moon and the larger planets and, is a two-star system. The surface temperature of the larger one (Sirius A) is 9940 K. What's the wavelength of the maximum in its emission spectrum. What co..
If the test of such a breath sample yields a reading of 0.08%, what are the partial pressure and mole fraction of CH3CH2OH in the breath of the person who was tested? Assume the atmospheric pressure and temperature are 101 kPa and 21.0 oC.
which ions in water make it 'hard'? is it possible to test for only one of these ions quantitatively in the presence of the other.
50.0 g of N2O3 is decomposed according to the following reaction 2N2O3 --> 2 N2 + 3O2 . How many moles and how many liters of nitrogen are produced at 300 degrees Celsius and a pressure of 1350 torr?
If the experimentally determined calibration curve is Absorbance = 12100 M-1 * [ferroin (M)] + 0.00230 and the measured absorbance of a sample solution is 0.367, what is the ferroin concentration in the measured solution
A 32.65-g sample of a solid is placed in a flask. Toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 54.00 mL
how many grams of AgNO3 can be produced by reacting completely 88.0g of Ag? (c)- state the number of grams of water that can be obtained by the reaction of 324g of Ag with 126g of HNO3
Consider a separation train consisting of two distillation columns which are designed to separate a three componentmixture of benzene, toluene, and xylene into three streams, each rich in one of the species asshown below.
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