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NH4CN(a solid) is warmed in a chamber and the following reaction occurs NH4CN (s)→HCN(g)+NH3(g) When the reaction chamber initially containing only NH4CN is warmed the pressure of HCN was found to be 0.6 atm. a. Write down the equilibrium expression Kp for this reaction. b. Based on the information provided, determine the value of Kp.
If 5.80 g of CuNO3 is dissolved in water to make a 0.280 M solution, what is the volume of the solution?
If a bottle of nail polish remover contains 177 ml of acetone, how much heat would be released by its complete combustion? The density of acetone is .788 g/ml
what 2 substances undergo a physical change if the temperature is reduced from 50 degrees celcius to negative 50 degrees celcius. what is the physical change that takes place in each case.
Chromatographic column, it is important to let the level drop in the column eluent to the level of the sand before applying the solution of the compound to be separated. What effect would have on the efficiency of separation ignore this recommenda..
Complete and balance the molecular equation and write a net ionic equation, make sure to include the physical states of the compounds: 1. potassium carbonate + strontium nitrate
Determine the slopes and intercepts of the unweighted and weighted regression lines. Calculate, using both regression lines, the confidence limits for the concentrations of solutions with fluorescence intensities of 15 and 90 units. Compare the re..
Which of the following pairs of molecules is listed in order of decreasing net dipole moment (from more polar molecule to less polar molecule)
carbon monoxide (CO) in an reaction to produce 2 moles of iron and three moles of carbon dioxide, what is the mole ratio between these reactants?
Explain what is the pH of 0.16 M diethylammonium chloride (C2H5)2NH2Cl. The Kb of diethylamine (C2H5)2NH, is 6.9 x 10-4.
How many grams of dry need to be added to 2.50 of a 0.700 solution of ammonia, , to prepare a buffer solution that has a of 8.65. for ammonia is.
dichloromethane has a vapour pressure of 10 torr at -43.3 deg c and 40 torr at -22.3 deg c. calculate its enthalpy of
Assume that a particular reaction evolves 250 kj of heat and that 34 kj of PV work is gained by the system. What is the enthalpy?
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