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Determine the empirical formula ratio of a compound which is having the copper and sulfur given the following analytical results?
The number of molecules in a rotational level J is given by NJ = C(2J+1)exp(-Θ rot J(J+1)/T ), where C is a constant, Identify the value of J of the most highly populated level
If, initially, [NH3 (g)] =[O2(g)] = 3.60 M, at equilibrium,[N2O4(g)] = 0.60 M. Calculate the equilibrium concentrations of all other species.
Describe the total mass of chloroform in the flask? What fraction is in the vapor phase at equilibrium if a quantity of liquid chloroform is placed in an open, transparent, three liter flask and boi
When 3.00 g of butanol (C4H9OH) is burned in the same calorimeter, the temperature increases by 20.81 oC determine the molar heat of combustion for butanol. An electrical heater is used to add
Suppose you are titrating the 3.566 mLs of 0.4113 M LiOH with 0.02765 MHClO4. Determine the pH at the equivalence point in this titration? Discuss in detail.
Describe the compression factor for this gas at the prevailing temperature and pressure when a certain gas obeys the van der Waals equation with a =0.50m6 Pa mol-2.
Determine the standard enthalpy of formation of liquid methanol,CH3OH(l), using the following information: C(graph) + O2 → CO2(g) ΔH° = -393.5 kJ/mo
What is the heat capacity of the bomb calorimeter, excluding the water? The heat of combustion of benzoic acid is -26.42 kJ/g. when 0.7521 g of benzoic acid was burned in a calorimeter cont
A sample of NH3 at 25 degrees Celsius effuses at a rate of 0.050 mole per minute. Under the same conditions, which of the following gases effuses at approximately one-half the rate?
Determine the mass of water vapor present in a room of volume 400m3 that contains air at 27(degrees)C on a day when the relative humidity is 60 per cent.
The process of converting a biopolymer from its denatured state to native state occurs spontaneously with the evolution of 40 kcal of heat to the surroundings per mole of polymer denatured at the 37
Determine the equilibrium constant for the reaction at equilibrium 2.00 g of C co-exist with solutions which are 2.00M in A and D.
Explain the equivalent weight of the anhydrous acid when the cupric salt (i.e., Cu2+) of a monobasic acid contains 3 molecules of water of hydration per atom of Cu. One gram of hydrated salt yields
What is the work done in joules if the gas expands (a) against the vacuum and (b) against a constant pressure of 3.7 atm when a sample of nitrogen gas expands in the volume from 1.6L to 5.4L at con
A sample which is having of 1.00 mol Ar is expanded isothermally at the 0(degrees)C from 22.4dm3 to 44.8dm3 (a)reversibly, (b) against a constant external pressure equal to the final pressu
A 0.177-gsample of unknown vapor occupies the flask at 97.80C and a pressure of 748 torr at the125-mL flask has a calculated volume of 152 mL. Assume an ideal gas behavior. Determine the numbers of
When the reaction consumes 2.0 g of liquidN2O4, it releases 24.8 kJ of heat. What is the value of delta H for the chemical equation as written? A reaction that is used to propel rockets is N2O4 (l)
The block sits on a table: the coefficient of kinetic friction between the block and table is 0.3. A force of 20 N is applied horizontally to a block of mass 5 kg. The acceleration of the block (in
Determine the numbers of glucose molecules are manufactured is 24 molecules enter the Calvin Cycle? Determine the increase in molar entropy of nitrogen when it is heated from the 25 to 100°C at co
Calculate how many grams of copper sulfate pent hydrate require to be diluted to total volume of 250.0 mL to make a 0.125 molar solution?
What is the new volume of the gas in the system when a refrigeration system contains 575mL of a gas at 22oC and 1.25 atm? The gas is compressed until it has a pressure of 2.00atm and a temperature of
Calculate the maximum work that can be obtained from the 1000 J of heat supplied to a steam engine with a high-temperature reservoir at the 100°C if the condenser is at the 20°C?
Determine the equilibrium partial pressures of CO and CO2 at the 700 Celsius, the total pressure of the system is found to be4.50 atm. If the equilibrium constant Kp is 1.52.
Determine the number of calories that would be produced if one mole of sodium hydroxide was dissolved.(ΔHsoln NaOH)