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A copper cathode with an initial mass of 10.77 g is placed in a solution of CuSO4. After current has passed through the electrode for 15.0 minutes the cathode has a mass of 12.89 grams. Determine the amount charge (in Coulombs) that has passed through the electrode.
A large gas flask is found to weigh 143.567 g. it is then filled with gas to a pressure of 735 torr at 31 C and found to weigh 1067.9 g.
determine the freezing point of a solution of 60.0g of glucose,C6H12O6,dissolved in 80.0g of water.
Calculate this salt's solubilty and the molarities of the ions in a saturated solution. Then use this information in the previous problem to find the solubilty of Pbl2
You have proven sulfanilamide is capable of forming a stable and selective crystal lattice. Draw additional molecules of sulfanilamide and hypothesize the intermolecular interactions that are most important for providing a stable and selective cry..
calculate the velocity of electrons emitted from molecules in which the binding energies are 10ev, 100ev, and 500ev
find the percent composition of a compound that contains 1.94g of C, 0.48-g of H and 2.58-g of S in a 5.00-g S sample of the compound
The concept of free energy allows prediction of spontaneity of a process by considering the changes in ________ and ________ during the process.
Using the Nersnst Eqaution [E=E^0 + (RT/nF)In(a1/a2) ] in terms of teh partial pressures of the components (specify assumptions). Also, calculate the Gibbs Free energy of the complete rxn.
When (S)-2-bromobutane undergoes an S2N reaction with CH3O-, the product is the compound shown below. What is/are the configuration of the product(s) obtained from this reaction
Carbon-14 has a half-life of 5730 years. How long will it take for a sample to decay to only 17% of its original amount
calculate the freezing and boiling points of each of the following solutions. 0.40 mol ethylene glycol and 0.17mol KBr in 122 g H2O.
what are the names of the quantity measured by each of seven SI base units and the SI symbols of the unit?
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