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Pure water is saturated with a 2:1 mixture of hydrogen and oxygen at a total pressure of 5 atm at 298 K. The water is then boiled to remove all the gasses. Calculate the percent composition of the gases driven off (after drying). (kH(O2) = 4.95 x 104 bar; kH(H2) = 8.23 x 104 bar near 25 C)
1-A 500 mL NaCl solution is diluted to a volume of 1.24 L and a concentration of 8.00 M. What was the initial concentration C1? 2- write the total ionic equation.Be sure to include the charges on the ionic species and the physical state of all the..
Predict products and write the net ionic equation for the following reaction that occurs in aqueous solution. The spectator ion(s) is/are
describe the points of rutherfords model for the nuclear atom and how he tested this model. based on his expiriments
Complete and balance the equations for the following acid-base reactions name the reactants and the products HCIO4(aq)H2+NH3(aq)
a robust first grader goes for swimming lessons three times a week and he enjoys it thoroughly. during the first week
At constant volume, the heat of combustion of a particular compound is -3698.0 KJ/mol. When 1.895 g of this compound (molar mass=181.06 g/mol) was burned in a bomb calorimeter
Why is the installation of an automatic sprinkling system recommended in machine shops that use lathes to fabricate titanium parts?
A carbon-hydrogen-oxygen containing compound yields 1.029 g CO2 and 0.198 g H2O in a combustion analysis( note that this means O2 was added the overall reaction) what is the empirical formula? if the Molar mass is 138.16 what is the molecular form..
Calculate the mass of Nitrogen (N2) that will react completely with 6.00g of Hydrogen (H2) to form Ammonia. Via the Reaction: N2+3H2=2NH3
Hemoglobin has a positive charge of +5 and a radius of 3.55 nm in water. How far will the protein travel in one hour in an electrophoresis gel at 25C when a field of 1.0 V cm^-1 is applied if the viscosity of the gel is 0.891 cP (1cP = 0.01 g cm^-..
Explain how the transition from the enamine intermediate to the imine intermediate in the Fischer indole synthesis of 2-phenylindole
Calculate the and the concentrations of all species present (H3O+,F-, Cl-,and OH-) in a solution that contains of HF 0.19 M (Ka=3.5*10^(-4)) and 0.19 M of HCl.
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