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A room contains 12,000 ft.³ of air at 75°F and 29.7 inches Hg Absolute. The air has a dew point of 60°F. How many pounds of water vapor are in the air?
What was the Ka value calculated by the student if the pH of the solution was 2.60? Express your answer numerically using two significant figures
Answer the following questions, include an explanation, balanced chemical equations where appropriate. Calculate the concentration of NaOH solution. Include calculation for each trial and average.
Trouble calculating theoretical and percent yield for this reaction: Pb (NO3)2 + K2CrO4 = 2KNO3 + PbCrO4 Starting quantities are 50ml, 1M solution for each reactant.
NaOH(aq) is rapidly mixed with an equal volume of 0.020 mol L^-1 HCN(aq). Calculate the time, in seconds, required for this [OH] to decrease to 1.0×10^4 mol L^1. (Hint: Start from the rate law in the form Rate = k [HCN ]^n[OH]^m.
what metal cations form sulfide precipitates in basic solution in qual scheme after the above cations have been removed. Qualitativley explain, why the pH of the sulifide solution effects which cations precipitate.
An engineer is designing a chlorine contact chamber to disinfect poultry-processing wastes. (Note these wastes are often contaminated with the pathogenic bacteria Salmonella). She can design the system to use chlorine gas (equivalent to using HOCl..
Using Tables from the book when needed, determine the volume of 0.280 M NaOH needed to reach the equivalence point in the titration of 41.1 mL of 0.343 M HNO2
Clearly Label the IR Spectrum of Benzoic Acid and assign the following peaks: Broad 3300-2500cm-1 3020 cm-1 1682cm-1 2. Clearly Label the IR Spectrum of Anisaldehyde and assign
an ideal gas with temperature independent Cp = (7/2)R at 15 degrees C and having initial volume 60 m^3 is heated at constant pressure (P =0.1013 MPa) to 30 degrees by transfer of heat from a resivoir at 50 degrees C.
The mass spectrum of an organic compound shows the relative abundances of M to be 36.44% and M 1 to be 8.277%. Assuming the peaks are caused by 12C and 13C isotopes
Determine the change in internal energy of the gas express your Answer in units of kJ and operates for nine minutes to heat the gas in a cylinder
when a blue copper(II)nitrate solution is mixed with a colorless solution of sodium sulfide
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