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The decomposition of HI(g) is represented by the equation 2HI(g) H2(g) + I2(g) Kc= 64 at 25°C. If the equilibrium concentrations of H2 and I2 at 400°C are found to be [H2] = 9.3x10-4 M and [I2] = 1.6x10-3 M, what is the equilibrium concentration of HI?
How long would you need to sample from a concentration of 1000 PPM using a flow rate of 50 ml/minute to collect 100 mg of material?
A compounds H NMR spectrum shows a resonance at 5.47 and 3.49 ppm. What possible structural subunit does the compound contain
The density of citronellal, a mosquito repellant, is 1.45 g · L-1 at 365C and 50.0 kPa. What is the molar mass of citronellal?
If 3.67 g of CO2 (MW = 44 g/mol) gas is introduced into an evacuated 3.58 L flask at 65 deg. C, what is the pressure inside the flask?
How many grams of the element nickel are contained in 10.0g of a 10.2 wt% solution of nicke sulfate hexahydrate, NiSO4*6H2O?
Derive an expression for the partition function for a molecule with two states separated by energy hν (i.e. ε1 = 0 and ε2 = hν). If we consider a canonical ensemble of N such molecules, derive expressions for the total internal energy and the heat..
A solution was prepared by mixing 70ml of 4.00 mol/L HCl and 30.0 mL of 8.00 mol/L HNO3. Water was then added until the final volume was 500ml. What is the [H+] and what is the pH ?
What do you expect will happen to the position of this equilibrium when the total pressure of the gases in the reaction mixture is doubled by injecting some argon (Ar) while maintaining the temperature constant.
What range of magnetic field strength would be required to cover the mass range between 16 and 625, for singly charged ions, if the accelerating voltage is held constant?
What are the pH and alkalinity of these three solutions immediately after you make them
The inner and outer surfaces a spherical shell with radii of 1cm and 2cm are 300C and 100C respectively .If the thermal conductivity of the shell is 2w/m.k,determine the heat transfear through the shell.
prove the presence of the cations listed : Sn2+ , cd2+, Cu2+, Bi3+. write four paragraphs about these cations a paragraph each?
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