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The work function of an element is the energy required to remove an electron from the surface of the solid element. The work function for lithium is 279.7 kJ/mol (that is, it takes 279.7 kJ of energy to remove one mole of electrons from one mole of Li atoms on the surface of Li metal). What is the maximum wavelength of light that can remove an electron from an atom on the surface of lithium metal?
121 cal of heat are added to 50.0 g of water initially at 15.0 (degrees celsius). What is the final temperature of the water.
A cubic meter of a gravel-and-sand aquifer has been contaminated with 20 L of tetrachloroethylene. If the amount of tetrachloroethylene dissolved in aquifer water is 20 percent of its aqueous solubility,
when a metal was exposed to light at a frequency of 4.63*10^15 Hz, electrons were emitted with a kinetic energy of 3.10*10^-19 J.
The products of the fastest inactivation process are as explain the mechanism is accountable for the making of the products.
Why can't i reduce carboxylic acid using sodium borohydride while lithium aluminium hydride can do the same thing.
Celsius the initial concentration of the three gases are.3M H 2 S,.3H 2 and .150 S 2 you just need to determine the equilibrium concentrations of all these given 3 gases?
Determine how much heat is formed by this reaction if a typical packet has 250 g of Fe to warm your hands (or feet for up to 4 h) express your answer in kJ?
Using electronegativity, predict in the order of decreasing polarity the following bonds: N-P, N-O, N-C, N-S, N-F. Predict how valence electrons would pair up in the AsO4-3 ion.
Determine the mass of Cr 3 + in the original solution if The total mass of the precipitate = 49.6 .
Evaluate the operating conditions of the chiller - what temperature must the chiller operate if the product streams are also at 1 atm total pressure?
Determine how many moles of the ANION are present in this resulting solution If 4 moles of the ionic compound get dissolved in this reaction?
What masses of iron(III)oxide and aluminium must be used to produce 15.0g iron? What is the maximum mass of aluminium oxide that could be produced?
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