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A Venus probe detects an element with a first ionization energy of 2088. Given the table of known ionization energies provided in the introduction, what is the most likely identity of this element?
What is the theoretical yield of hydrazine in grams, prepared from the reaction of 100.0 mL of 0.690 M NH3
What mass of ice can be melted with the same quantity of heat as required to raise the temperature of 4.00 by 55.0?
elemental exonium not a real element consists of two major isotopesabundance mass59 94 amu41 112 amuwhat is the atomic
Neglecting the contribution of end groups to polymer molar mass, calculate the percentage conversion of functional groups required to obtain a polyester with a number-average molar mass of 24,000 g mol-1 from the monomer HO(CH2)14COOH.
What is the partial pressure of each gas and total pressure of the mixture of gaases, in atmospheres, in the container?
a 7.95 L Container holds a mixture of two gases at 37 degrees celcius. the partial pressure of gas A and gas B, respectively, are .287 atm and .698 atm. if .210 mol a third gas is added with no change in volume or temperature.
Standard Spectrophotometry experiment. I have absorbance, path length (1) and I need to determine the concentration of an unknown based on my calibration cure. I need the Extinction Coefficient. Is that just the slope of by calibration curve? Or i..
You have been given the task by your adviser of making a 1-L of a solution with a calcium activity {Ca2+} of 1.3*10^-4 M and he wants you to make two different ways. One in 0.05M KCl and the second in 0.1M MgCl2. How much CaCl2 do you need to add ..
Write chemical equations and corresponding equilibrium expressions for each of the three ionization steps of phosphoric acid. Write chemical equations for first ionization step of phosphoric acid. H3PO4(aq)+H2O(l) H3O+(aq) + H2PO4^- (aq)
Being an extravagant sort, the individual decides to spend the money at a rate of exaxtly one million dollars per second. How many years( or fraction of a year) will it take to spend all of the money
A reaction between methane and hydrogen sulfide to produce carbon disulfide and hydrogen gas was carried out. CH4 (g) + 2 H2S(g) → CS2 (g) + 4 H2 (g)
if you dissolve the weighed mass of zinc in water which had not been deionized, how would the volume of EDTA required to reach the indicator end-point
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