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The first ionization energy of lead (Pb) is 716 kJ/mol. If a Pb atom is ionized using a photon of ultraviolet radiation having an energy of 1.987E-18 J, what is the amount of leftover energy that goes into the kinetic energy of the ejected electron?
A solution of ammonia and water contains 1.90×10^25 water molecules and 5.20×10^24 ammonia molecules. How many total hydrogen atoms are in this solution
Calculate the equilibrium constant for the following reaction at 298K and biological standard state: CH3CHO +NADH +H+ --> C2H5OH + NAD+ E° ?= -0.197V for the CH3CHO/ C2H5OH couple.
A compound contains only C, H, and O. To analyze the compound, you determine its empirical formula by analysis for C and H, and its molar mass by freezing point depression. (a) What is the empirical formula if a 0.01510 g sample gives 0.01102 g of..
An interstitial alloy prepared from two metals. metal A with the larger atomic radius has a hexagonal closed-packed structure. What if the formula(for example:A2B,AB,AB2)of the alloy if atoms of metal B occupy the following?
Calculate the volume of a sample gas at 5.75 atm if it occupies 5.61 L at 2.18 atm. (Assume constant temperature.)
Consider the following reaction in a closed reaction flask. If 1.50 atm of gas A is allowed to react with 0.500 atm of gas B and the reaction goes to completion at constant temperature and volume, what is the total pressure in the reaction flask a..
On treatment of Compound D with an alcoholic solution of silver ammonium hydroxide, a silver mirror was formed within a few minutes. Identify the hydrocarbon A and Compounds B-D.
show the photoelectron spectrum of N2.Assign short and long progression band.. which one is adiabatic band. give your explanation on basis of FCP. No google copy- paste thing please.
How would I calculate the theoretical enthalpy of reaction between HCl + NaOH -> H2O + NaCl
A mercury mirror forms inside a test tube by the thermal decomposition of mercury(II) oxide. 2 HgO(s)-----> 2 Hg(l) + O2(g) delta H rxn = 181.6 kJ (a) How much heat is needed to decompose 505 g of the oxide
Provide an explanation for the trend observed by comparing the basicity of the oxyanion bases. Include any additional structures necessary in your explanation! B ase % 1-Butene in Total Butenes Potassium p-nitrobenzoate 5.8 Potassium benzoate 7.2 ..
what is the ph of a solution prepared by mixing 50.00 ml of 0.10 m methylamine ch3nh2 with 20.00 ml of 0.10 m
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