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Consider the titration of a 24.3mL sample of 0.120M RbOH with 0.110M HCl. Determine each of the following.
What velocity would an electron 9.11*10^-31 kg need for its de Broglie wavelength to be that of red light 745nm ?
The excess is titrated with standard 0.101 M KSCN solution, requiring 2.38 mL to reach the red Fe(SCN)2+ endpoint. Calculate the concentration of chloride in the brine in g/L
What mass of NaOH is needed to precipitate the Cd^{2+} ions from 32.0 mL of 0.480 M Cd(NO3)2 solution?
A mass of solid aluminum is at its melting point. what is the maximum mass of this sample that can be melted by 120 kJ of heat? ( Cp=0.900J/gc ; Hfus= 35.7 KJ/g
Explain what happens to the atomic number of a nucleus when positron emission occurs
bathed by an atmosphere of nitrogen at 77K and 1 bar? Assume every nitrogen molecule that strikes the surface sticks and that a nitrogen molecule covers an area of 1.1e^5 pm^2.
A compound has 2 ionizable groups, with pKas of 6.2 and 9.5. A 1.0 M solution of this compound (100 mL total volume) is found to have a pH of 6.8. A biochemist adds 60 mL of 1.0 M HCl to this solution. The solution pH is now:
How many milliliters of O2 are consumed in the complete combustion of a sample of hexane, C6H14, if the reaction produces 789. mL of CO2? Assume all gas volumes are measured at the same temperature and pressure.
Propose a structure for the compound with the following formula that is consistent with the IR and 1H NMR data shown:
How many ml of 0.318 M K2Cr2O7 are needed to completely oxidize 179 ml of 0.768 M tin (II) chloride to tin (IV)?
Determine the final pressure, volume, temperature, and number of moles of gas when the volume is reduced by half at the time when gas is compressed? Use C p /C v = 1.3
Calculate kp and kc for the dissociation.
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