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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
Write the expression for the equilibrium constant Kc for the following thermal decomposition reaction. Be sure to enclose each concentration term in brackets (eg. [X]^3 and correctly specify the thermal formulas.
What weight of glucose in grammes is required to make 675 ml of a 750 mM solution. Glucose Mr = 180.16
Nitrosyl bromide, NOBr, is formed in the reaction of nitric oxide, NO, with bromine,Br2 : 2NO(g)+Br(g) 2NOBr(g) The reaction rapidly establishes equilibrium when the reactants are mixed
Separate samples of an aqueous solution of an unknown ionic salt are treated with dilute aqueous solutions of hydrochloric acid, sulfuric acid, and potassium hydroxide. Precipitates are formed in all three cases.
the reaction converting glycerol to glycerol-3-phosphate is energetically unfavorable by 9.2kj. the reaction of atp
Weak acid unknowns with a solution of NaOH of about 0.10 mol/L.
There are two key concepts to keep in mind throughout the exercises: 1) What is the unit cell for each structure? 2) What are the coordination environments of the atoms involved?
1000 000 000 copper atoms would form a line 1 cm long. How long would a line formed by 1.10^7 copper atoms be. express your answer in millimeters
Write mathematical equation that show how you will calculate the detected activity from the count rate the sample KCl
A coffee-cup calorimeter contains 140.0 g of water at 25.2 *C. A 122.0 g block of copper metal is heated to 100.4 *C by putting it in a beaker of boiling water.
A 0.2254g sample of naphthalene (C8H10, 128.16g/mol) was burned in a bomb calorimeter with a heat capacity of 2.18kJ/K and temperature increased by 4.16 Celcius, what is the molar enthalpy of combustion for this compound
In a reaction involving reactants in the gas state, how does increasing the partial pressures of the gases affect the reaction rate
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