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How many grams of acetic acid acid, CH3COOH, are required to make 350 mL of an aqueous solution with a pH of 2.40? (Ka = 1.8 x 10^-5 for acetic acid)
How many liter of ethane, measured at 15 degrees C and 711 torr, must be burned to liberate 2.73 * 10^4 KJ of heat? 2(C2H6) +7(O2) ----> 4(CO2) + 6(H2O) [delta H= -3.12 *10^3]
The gas effuses at a rate that is 0.404 times that of neon in the same apparatus under the same conditions. How many atoms are in a molecule of gaseous white phosphorus?
What is the Ag+ concentration when BaCrO4 just starts to precipitate? The Ksp for Ag2CrO4 and BaCrO4 are 1.1 x 10-12 and respectively.
Two syntheses using a grignard reagent, starting with an alkyl halide and later
Calcium nitrate will react with ammonium chloride at slightly elevated temperatures, as represented in the equation Ca(NO3)2(s) + 2NH4Cl(s) ? 2N2O(g) + CaCl2(s) + 4H2O(g). What is the maximum volume of N2O at STP that could be produced using a 2.4..
Compute the number of rads and rems of radiation in five years from such a level of plutonium.
the osmotic pressure of the solution at 25C is found to be 0.614 mbar. Calculate the molecular mass of immunoglobulin G.
a gas has a volume of 590mL at a temperature of -55.0 C. what volume will the gas occupy at 30.0C?
How much heat is liberated by the combustion of 183 g of hydrogen? ΔHcomb = -286 kJ/mol.
Will the temperature decrease shift the equilibrium toward the reactants or products for a reaction characterized by a positive reaction enthalpy and positive reaction entropy?
What is the final temperature, in ?C, of the gas in the bubble outside the volcano if the final volume of the bubble is 161mL and the final pressure is 0.827atm, if the amount of gas remains constant?
What is the principal product when p-toluidine is treated with sodium nitrite and hydrochloric acid at 0-5 degrees Celcius
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