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If an incoming energy to a photoelectric effect problem is 2.35 x 109 MHz and you hit a metal surface that has an ionization energy of 6.5 x 10-19J, what would the wavelength of the ejected electron be?
The volume of a 24.0-g sample of methane gas is 22.8 L at 40.0°C and 4.00 atm. What will its volume be at 68.0°C and 4.00 atm.
What is the balanced equation for the complete combustion of 2,2,4-trimethylpentane? Show how butane can be converted to 2,2,4-trimethylpentane using petroleum refining processes
Consider a macroscopic object of mass 1 g moving with speed 1 cm/s in a 1-D box of length 1 cm. Assuming it obeys the laws of quantum mechanics, which quantum level (n) is the particle in
Calculate the enthalpy change in oxidizing this mixture in air if the reactants are at 298 K and the products are at 1200 K.
below which there is too little fuel to support combustion. For propane, the LFL is 2.1 mol-%. What is the mol fraction of propane in the air at the stoichiometric concentration?
Draw an energy-level diagram for the valence molecular orbitals of CO. Include the relevant atomic orbitals in your diagram. Clearly label each molecular orbirals
If 0.487 grams of AgNO3 is dissolved in 20 ml of water, how many moles of silver ions will be present in each millimeter?
a zero-order reaction has a constant rate of 2.90times10-4 mrm s. if after 65.0 seconds the concentration has dropped
A 17.6-g sample of an alloy at 93.0°C is placed into 50.0 g of water at 22.0°C in an insulated coffee-cup calorimeter with a heat capacity of 9.2 J/K. If the final temperature of the system is 31.1°C, what is the specific heat capacity of the allo..
Given that the specific heat capacities of ice and steam are 2.06 j/g degrees C and 2.03J/g degrees C, respectively, calculate the total quantity of heat evolved when 10.0 g of steam at 200 degrees C is condensed, cooled, ad frozen to ice at -50 d..
a 20 ml solution of ti2 40 mm can be oxidized by reacting with iron ions from fecl3. a titration is performed with a
this energy is in the form ofelectromagnetic radiation, what is the frequency of the radiation? Is the radiation emitted orabsorbed?
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