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Exactly 37.2mL of hydrogen is collected over water at 29 degrees C and 745 torr. Explain the vapor pressure of water at 29 degrees C is 30 torr.
Define what is the volume of dry hydrogen collected at STP?
Explain how many moles of hydrogen are present?
Explain how many moles of water vapor are present?
Molecules can be as small as a few atoms or as large as thousands of atoms. In 1962, Max F. Perutz and John C. Kendrew were awarded the Nobel Prize for their discovery of the structure of hemoglobin
what is the theorectical yield of disulfure chloride? what mass of the excess reactant reamains when the reaction is completed?
The following equilibrium concentrations were measured at 800 K:[SO2]=3.0*10^-3M; [O2]=3.5*10^-3M; [SO3]=5.0*10^-2M. Calculate the equilibrium constant at 800K for each of the following reactions.
A solution contains 2.0×10-4 M Ag+ and 3.6×10-2 M CO32-. Determine Qsp for Ag2CO3. Will Ag2CO3(s) precipitate? [Ksp for Ag2CO3 is 8.1×10-12]
Urea (NH2CONH2) an important nitrogen fertilizer is produced industrially by the reaction 2NH3(g)+CO2(g)--->NH2CONH2(aq) + H2O(l) given that ?G^degree = -13.6KJ, calculate
Make a schematic diagram of a cell for each of the following cell reactions. Indicate on the diagram the anode, the cathode, the direction in which the anions and cations migrate through the cell and the salt bridge
A system consists of 6.00 moles of benzene. It is initially at a temperature of 76.0°C, a pressure of 0.878 bar, and a volume of 534.7 cm3. Calculate the volume of the system at the end of this process.
How much heat is needed to raise the temp. of 25.0 g of gold from 23C to it's melting point at 1063C? I know the answer is 3.4 KJ but need to know how to get the answer if unknown.
When 25 mL of a 90 mL stock solution containing 2.15 M Pb(ClO3)2 is diluted to 33 mL, what is the concentration of ClO3- in the new solution
Our reaction mixture had an oily layer layer on top when we added 3M sulfuric acid. what would cause this
which of the following is always spontaneous A. C2H6O + 3O2 = 2CO2 + 3H2O; delta H is smaller than 0 B. the sublimation of dry ice ( CO2) C. the freezing of water (H2O) D. the formation of water from its gaseous elements D. None of the above.
identify the stronger acid in each of the following pairs a)NH4^+ or H3O^+ b)H2SO4 or HCN c)H2O or H2CO3
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