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lf the catalyzed decomposition of NrO occurs first at a Tr:341 K and then atTr = 229 K, with a k/k, ratio of 0.500, what is the activation energy?
if Ea is in kj/mol, would I have to change gas const R 8.314 J/mol*k into kj?
What is the new volume of the balloon (in mL) at constant temperature?
Determine how much heat is evolved or absorbed when 40.0 of lithium iodide completely dissolves in water.
Vanillin is a common flavoring agent. It has a molar mass of 152g/mol and is 63.15% C and 5.30% H. The remainder is Oxygen. Determine the molecular formula of vanillin.
Write the simplest balanced equations, and find the actual relative masses of the elements. Explain your reasoning.
If all of this O3 is converted to oxygen, O2, at the same temperature and pressure then what will be the volume of the oxygen formed?
A sample of hydrogen occupies a volume of 1.20 liters at a pressure of 425 kilapascals. If the temperature of the gas is constant, what would the new volume of the gas be at 615 kilapascals?
The Kp for the reaction below is 1.49 × 108 at 100.0 °C: CO (g) + Cl2 (g) ↔ COCl2 (g)
A solution is made by dissolving 0.632 mol of nonelectrolyte solute in 895 g of benzene. calculate the freezing point and boiling point of the solution
A gas-filled balloon having a volume of 2.50L and 1.2 atm and 25 Celsius is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23 Celsius and 3.00 x 10^-3 atm, respectively. Calcul..
predict the outcome of the synthesis of an azo dye using 4-nitroaniline as the diazonium precursor and benzaldhyde as the coupling agent
A sample of sodium reacts completely with 0.142kg of chlorine, forming 234g of sodium chloride. What mass of sodium reacted?
20.00 ml of 0.100F Pb(No3)2 (FW 331.2) are mixed with 15.00 ml of 0.125 F Nal (FW 149.9). Lead (II) and iodide form an insoluble salt pbl2 (FW 461.0) Calculate the concentration of each of the remaining ions after mixing. [Pb+2], [i-],[na+],[n03-]..
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