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If the curves A and B refer to two different gases, He and O2 at the same temperature, which is which? and Why?
How much heat (in kJ}) is evolved in converting 1.00 {mol} of steam at 160.0C to ice at -55.0C? The heat capacity of steam is 2.01 {J}}/{{g.C}} and of ice is 2.09 {J}}/{{g.C}}.
When gases are collected using displacement of water,some water vapor mixes in with the gas being collected.35.2 ml of H2 gas was collected over water at a temperature of 21 Celsius degree.
At what pH would the side chain of histidine exist predominately in a form that could be involved in an ionic bond?
suppose that hydrogen atoms are prepared in the n=2 energy level. calculate the wavelength of light emitted by these excited atoms when returning to the ground state.
sulfuric acid h2so4 combines with sodium hydroxidenaoh according to the given equation as h2so4 naoh na2so4 h2o
a 0.525-g sample of a compound is dissolved in enough water to form 100.0 ml of solution. this solution has an osmotic
ethanolc2h5oh is produced from the fermentation of sucrose in the presence of enzymes. determine the theoretical and
What is the net ionic equation of the reaction of \rm ZnCl_2 with \rm NaOH
A tank contains 40 lb. of air, 20 lb. of CO2 and 30 lb. of SO2. Compute the volume of the tank if the total pressure of the mixture is 44.08 psi at 86°F. What is the partial pressure of each constituent and the average molecular weight of the mixt..
For the following electrochemical cell Cu(s)|Cu2 (aq, 0.0155 M)||Ag (aq, 1.50 M)|Ag(s) write the net cell equation. phases are optional. do not include the concentrations
A white precipitate formed with barium chloride, BaCl2: what is the chemical equation for the reaction of the reagent with the ion
If the heat of combustion for a specific compound is -1310kj/mol and its molar mass is 60.87 g/mol, how many grams of this compound must
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