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By using photons of specific wavelengths, chemists can dissociate gaseous HI to produce H atoms with accurately known speeds. When HI dissociates, the H atoms move away rapidly, whereas the relative
Using Lewis electron-dot symbols to depict the monatomic ions formed from each of the following reactants, predict the formula of the compound the ions produce.
As a solution becomes more basic, the pOH of the solution increases. 6. As the Kb value for a base increases, base strength increases.
calcuate the wavelength (in nanometers) of an electron weighing 9.10939x10^-28g moving at 3.90x10^6 m/s.
Write a proposed procedure in chart format to determine the identity of the following aqueous solutions: HCl, Na2C2O4, Al(NO3)3, AgNO3, Mn(NO3)2, ZnCl2, H2O2, NH4Cl, Ba(NO3)2, Na2CO3, NA2S2O3.
Calculate the wavelength (in nanometers) of a muon weighing 1.884x10^25g traveling at 325m/s.
The small bags of silica gel you often see in a new shoe box are placed there to control humidity. Despite its name, silica gel is a solid. It is a chemically inert, highly porous, amorphous form of
Calculate the theoretical yield in grams of the precipitate formed. 3. If the actual yield of the experiment was 90.5 mg, what is the % yield of Ag3PO4
Determine the pH of each solution a solution that is 0.028 M in HClO4 and 0.030 M in HCl a solution that is 1.06% HCl by mass
Show the overall reaction of racemic 3-bromohexane from (E)-3-hexene by entering the structures of the products and reactants in the template provided. (E)-3-hexene (S)-3-bromohexane (R)-3-bromohexa
An open flask contains .200 mol of air. Atmospheric pressure is 745 mm hg and room temperature is 68 degrees Fahrenheit. How many moles are present in the flask when the pressure is 1.10 ATM and the
Assuming the difference in relative boiling points of methyl acetate (bp 57ºC) and 2-butanone (bp 80ºC) is caused by the difference in their dipole moments; predict which compound has the
What is the temperature (in C) of a 0.536g sample of neon gas, Ne(g), that occupies a 500.0mL container at a pressure of 762.3 mmHg
The addition of S2- ion to Fe(OH)2(s) results in the formation of FeS(s). Explain why the addition of S2- ion to Cr(OH)3(s) does not result in the formation of Cr2S3(s).
Draw (2R,3S)-2-bromo-3-phenylpentane in the conformation from which it is most likely to undergo E2 elimination to give 3-phenyl-2-pentene.
A 140.0-\,mL solution contains 2.00g of sodium benzoate and 2.53g of benzoic acid. Calculate the \rm pH of the solution.
Consider the following reaction at 298 K. 2 SO2(g) + O2(g) ? 2 SO3(g) An equilibrium mixture contains O2(g) and SO3(g) at partial pressures of 0.42 atm and 1.5 atm, respectively. Determine the equil
What is the average molecular mass of a diving-gas mixture that contains 1.5\% by volume O2 and 98.5\% by volume He
How do you do a subsitution reaction if your leaving group is NH2? And your reagent is CH3CH2CH2OSO2CH3.
The volume of a sample of chlorine gas is 98.6 mL at 31.4 C and 769.6 mmHg. What volume will the sample occupy at 23.2 C and 748.8 mmHg? Please show how to work out the problem if you can
At 5096 oC the equilibrium constant for the reaction: 2 NO(g) N2(g) + O2(g) is KP = 2.93. If the initial pressure of NO is 0.00735 atm, what are the equilibrium partial pressures of NO, N2, and O2
A sample of oxygen gas has a volume of 387 mL at a temperature of 15.3 C What temperature (in C) is required to change the volume to 439 mL under constant pressure
How many jules of energy are needed to change 275 g of water from 15 degrees celcius to steam at 50 degrees celcius
Detarmine the resulting Nitrate ion concentration when 95 ml of 0.592m potassium nitrate and 145.5ml of 1.770m calcium nitrate are combined