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At a particular temperature the first-order gas-phase reaction N2O5 ----> 2NO2 + (1/2) O2 has a half-life for the disappearance of dinitrogen pentoxide of 5130 s. Suppose 0.450 atm of N2O5 is introducted into an evacuated 2.00 L flask. What will be the total gas pressure inside the flask after 3.00 hours
One of the steps in purifying silicon involves reacting the intermediate silicon tetrachloride with steam to produce high-purity silicon dioxide and hydrogen chloride gas
A proton in a linear accelerator has a de Broglie wavelength of 127 pm. what is the speed of the proton?
If you didn't wipe away any frost or condensation formed during sublimation, how would your molar mass value be affected? Be specific please.
Given the reaction C6H12O6 + 6O2 = 6CO2 + 6H2O How many grams of water are produced when 360 g of glucose are burned
a 738 ml sample of nitrogen n2 was collected by displacement of water at 24c under a total barometric pressure of 1270
The rate of a chemical reaction is found to double when the temperature is raised from 298K to 308K. Determine the activation energy.
the solubility in water is 8.7 g per 100 mL at 20 degrees C and 34.2 g per 100 mL at 100 degrees C. Write the equation for the solubility equilibrium, including heat as a reactant or product. What is the sign of DeltaH of the solution
calculate the molarity of acetic acid in a viegar sample knowing that 5.00 ml of vinegar requires 43.50 ml of 0.105 m
each successive hydrogen is more easily substituted until the trihalo species is obtained. Explain
If the heat released during condensation goes only to warming the iron block, what is the final temperature (in C) of the iron block
How many moles of MgCl2 are present in 50.0 mL of 0.800 M MgCl2 solution?
it takes 480. joules amount of energy to increase the temperature of 103.1 grams mercury from 20.0degc to 53.5degc.
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