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Consider the reaction shown below. PbCO3(s) PbO(s) + CO2(g) Calculate the equilibrium pressure of CO2 in the system at the following temperatures. (a) 110°C_____atm (b) 590°C____ atm Note: To find the value of the equilibrium constant at each temperature you must first find the value of G0 at each temperature by using the equation G0 = H0 - TS0 For this reaction the values are H0 = +88.3 kJ/mol and S0= 151.3 J/mol*K
Given a column of air with a pressure of 1.57 x 10^5 Pa and an area of 1.12 m^2 and given that the acceleration due to gravity is 9.8 m/s^2, what is the mass of this column
You wish to extract an organic compound from an aqueous phase into an organic layer (3 to 6 extractions with a separatory funnel). With regard to minimizing the number of transfer steps,
Salt in crude oil must be removed before the oil undergoes processing in a refinery. The crude oil is fed to a washing unit where freshwater fed to the unit mixes with the oil and dissolves a portion of the salt contained in the oil
Find the heat transferred (in kJ) when 5.55 L of ethylene glycol (d = 1.11 g/mL) in a car radiator cools from 40.0°C to 25.3°C.
The heat capacity of the solid lead oxide is given by:Cp = 44.35 J/K/mol + 1.47*10^-3 T J/K^2 Calculate the change in enthalpy of 3.25 mol of PbO(s) if it is cooled from 750 K to 300 K at constant pressure
NH3 is a weak base (Kb = 1.8 × 10-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.049 M in NH4Cl
Colbalt monoxide CoO, the blue color in ceramics glazes, is prepared by decomposing cobalt (II,III) oxide at 950degree celsius.
a 25.0 ml sample of H3PO4 requires 50.0ml of 1.50ml M NaOH for complete neutralization. what is the molarity of the acid?
3230 J of heat are added to a 29.7 g sample of iron at 29 degree C. What is the final temperature of the iron? The specific heat of iron is 0.449 J/g. K
In a certain experiment, 2.00 g of NH3 reacts with 2.50 g of O2. a) How many grams of NO and of H2O form? b) how many grams of excess reactants remain after the limiting reactant is completely consumed
Assuming equal concentrations, rank these aqueous solutions by their freezing point. SnI4, NaNO3, Al(NO3)3, NaSO4. highest to lowest
Calculate the pH of a system composed of 0.135 M HC7H5)2, benzoic acid and 0.176 M KC7H5O2, potassium benzoate.
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