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Consider the following equilibrium for which DH = 29.28: Br2(g) + Cl2(g) ? 2 BrCl(g) How will each of the following changes affect an equilibrium mixture of the 3 gases in this reaction? (a) Cl2(g) is added to the system. (b) The reaction mixture is heated. (c) The volume of the reaction vessel is doubled. (d) A catalyst is added to the reaction mixture. (e) The total pressure of the system is increased by adding a noble gas. (f) BrCl(g) is removed from the system.
You have available at your lab bench a 0.1 M solution of TRIS in its protonated form, 0.1 M solutions of HCL and NaOH, and ample distilled water. Describe the preparation of a 1 L solution of 0.2 M TRIS buffer, pH 7.8
Using terms in the Hartree-Fock energy expression, explain why the lowest-energy triplet state of the He atom is higher in energy than the singlet state.
If the pressure increases to 800. torr, how many moles of gas were added to the container? Assume a constant-volume container.
A 1L vessel at 0C contains .23 mol N2, 1.6 mol of H2 and1.9 mol CH4. Calculate the pressure of the mixture and the partial pressure of each constituent gas.
Describe what is meant by an amphoteric species. Write the equation for the self ionization of water and know the ion product constant expression for water and its value at 25 degrees.
A sample of methane gas (CH4) at 18.8 oC is heated. The pressure increases from 1.78 atm to 2.46 atm, and the volume of the sample changes from 4.09 L to 1.89 L.
what is the percent yield of the enzyme recovered in the purified fraction. what is the degree of purification (fold purification
Calculate the osmotic pressure( in atm) of each of the following aqueous solutions at 20.00 degree C: a. 1.59 M methanol (CH3OH)
In a 1.00 L flask, 3.40 atm of CO reacts with 2.60 atm of O2. Assuming that the temperature remains constant, what is the final pressure in the flask.
liquid mercury at atmospheric pressure and 298K to 1.25L at constant temperature requires 46.6kbar (kilobars) of external pressure. What is the isothermal compressibility of Hg(l)?
During a standarization of sodium hydroxide solution, it takes 12.35mL of 0.100 M HCl(aq) to neutralize a 25.00 mL sample of the NaOH(aq) solution. What is the concentration of the NaOH(aq) solution?
A compound has the empirical formula CH2O. When 0.0866g is dissolved in 1.000g of ether, the solution's boiling point is 36.5 degrees C. Determine the molecular formula of this substance.
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