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Using Standard Free Energies of Formation at 25 degrees C, determine if the production of phosgene gas COCl2 from the combination of carbon monoxide gas (CO) and chlorine gas (Cl2) is spontaneous at
Further recylcing reactions that would take the products back to some of the monomers. What reactions to use? What would you get as products
The cell constant of a conductivity sell is equal l/A. The resistance of the NaCl solution is found to be 254 Ω . Using the same sell the resistance of the 0.05 M KCL is found to be 467 &Omega
chloroform, CHCl3 has a ΔHvap = 29.4 kL/mol. what is it's vapor pressure at 25 degrees celsius
The following osmotic pressures were observed for bovine serum albumin (BSA) in 0.15 M NaCl at 273 K. Calculate the molar mass of BSA.
Calculate the minimum mass of ethane that could be left over by the chemical reaction. Be sure your answer has the correct number of significant digits. 2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
You found that pH=pKa=4.2 when 12.50 mL of NaOH hadbeen added. The concentration of the sodium hydroxide was 0.500M. Calculate the initial percent dissociation of the acidsample.
Write the net ionic equation to show the formation of a precipitate (insoluble salt) when the following solutions are mixed. Write noreaction if no insoluble salt forms CaCl2(aq)+Mg3(PO4)2(aq)
Write the net ionic equation to show the formation of a precipitate (insoluble salt) when the following solutions are mixed. Write noreaction if no insoluble salt forms KCl(aq)+Pb(NO3)2(aq)
Calculate the freezing point of each of the solution 0.220 g C12H22011 of sucrose, , a nonelectrolyte, dissolved in 1.75 kg of water.
How does the enthalpy change for the neutrlization of hydrochloric acid compare to the enthalpy change for the neutralization of aceitc acid. Explain any similarities or differences.
Calculate the kinetic energy of 2 kg of helium gas at 25 C. If this energy could be captured and used to accelerate a 1400.0 kg automobile, how fast would the car travel on a flat surface (ignoring
Calculate the freezing point of each of the solution 75.0 g of glucose,C6H1206 , added to 0.539 kg of water. Calculate the boiling point of the solution. 75.0 g of glucose,C6H1206 , added to 0.539 k
Milk spoils about 5x as fast at 300 K as it does at 250 K. What is the apparent activation barrier for the "milk spoiling" reaction
write the ground state electron configuration( using molecular orbital theory) for o2 and show that it is paramagnetic.
Write the net ionic equation to show the formation of a precipitate (insoluble salt) when the following solutions are mixed. Write noreaction if no insoluble salt forms
Perform a similar analysis of a stripping column. In this case, 100 lbmol/h of water with a concentration of 0.0045 lbmol SO2/ft3 is stripped with air to a concentration of 0.0005 lbmol SO2/ft3. The
Explain the dissolution of the sulfides of copper, bismuth and cadmium in nitric acid. Include ionic equations. If a yellow precipitate is obtained upon addition of hydrogen sulfide to an unknown sol
The redox reaction of peroxydisulfate with iodide has been used for many years as part of the iodine clock reaction which introduces students to kinetics. If Eºcell = 1.587 V and Eº of the
The decomposition of SO_2_Cl_2_ is first order in SO_2_Cl_2_ , and the reaction has a half-life of 245 min at 600 K. If you begin with 3.6e-3 mol of SO_2_Cl_2_ in a 1.0-L flask, how long will it tak
Propose a reasonable reaction mechanism for the sodium hypochlorite oxidation of 3-heptanol. Give the IUPAC name of the expected product.
What is the percent dissociation of HNO2 when 0.060g of sodium nitrate is added to 105.0 mL of 0.060 M HNO2 solution? Ka for HNO2 is 4.0 x 10^-4
Ammonia can be made by reacting calcium cyanamide (CaCN2) with water as shown: CaCN2 + 3 H2O => CaCO3 + 2 NH3. How many grams of calcium cyanamide are required to react with 190.0 g of water
A minute sample of AlCl3 is analyzed for chlorine. The analysis reveals that there are 24 chloride ions present in the sample. How many aluminum ions must be present in the sample
Describe how biological membranes are organized: what roles do lipids and proteins play in this organization