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what is the maximum wavelength of light that can be used to exhibit the photoelectric effect with lithium metal? it requires 279.7 kJ to remove one mole of electrons from Li atoms
One mole of an ideal gas is heated from 100 C to 322.4 C at constant VOLUME. Report the heat added (in kJ and three significant digits) to this gas to achieve this heating
what are the standard half cell potentials; E anode and E cathode? If the electrochemical cell is allowed to operate as a gavanic cell, which solution species will be oxidized, which solution species will reduce
an airplane is pressured to 650 mm Hg, which is the atmospheric pressure at a ski resort at 1.30 * 10^4 ft altitude. If air is 21% oxygen,
A flat 103-turn current-carrying loop is immersed in a uniform magnetic field. The area of the loop is 5.47 cm2 and the angle between its magnetic dipole moment
In a solution of acetone and ethanol, the mole fraction of acetone is 0.40. What is the concentration of acetone as a mass percent?
The activation energy for the gas phase decomposition of difluoroperoxide is 72.4 kJ. F2O2 F2 + O2 The rate constant at 238 K is 8.04E-4 /s. The rate constant will be /s at 286 K.
the specific heat of silver is 0.24 J/g degree celsius. how many joules of energy are needed to warm 4.37 g of silver from 25 degree celsius to 27.5 degree celsius?
The student did not pre-heat the gravity filtration apparatus in Part 3. c) The student forgot to cool 5 mL of solvent in Part 5 and washed the crystals with room-temperature solvent.
A sample of the Dead Sea Scrolls gives a ^14C decay rate of 731 disintergrations/h. A modern sample gives 920 disintergrations/h. Estimate the age of the Scrolls from these data.
During the preparation of a solution, a solute is dissolved in a volume of solvent smaller than the desired volume of solution. Subsequently, solvent is added until the final volume of solution is reached
Provide the proper IUPAC name for the alkene shown below? choose your answere from the following answers provided. (a) 2-ehtyl-2-methylcyclohexene (b) 3-ethyl-3-methylcyclohexene (c) 6-ehtyl6-methylcycyclohexene
Which of the following is the correct value for (delta)Go' (delta G naught prime: standard free energy change) for an equilibrium reaction in which 2A + B = C + 3D? The equilibrium concentrations for all chemical species is as follows:
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