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The molecules of a certain gas sample at 313 K have a root-mean-square (rms) speed of 297 m/s. Calculate the most probable speed and the mass of a molecule.
What weight of Pb(NO2)2 wil have to be dissolved in one liter of water to prepare a 100ppm Pb2+ solution.
what is the original concentration of acetic acid in the vinegar? Molecular chemical equation: CH3CO2H(aq) + NaOH(aq) -> CH3CO2Na(aq) + H2O(l)
calculate the molarity of the following solutionsa5.6 mol of sodium chloride dissolved to form 25 l of solution.b5.6 g
A solution is prepared by dissolving 16.2 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 10.50 mL sample of this stock solution is added to 59.00 mL of water. Calculate the concentration of ammonium ions and sulfate ions ..
The atmospheric pressur on Pluto is 3 microbars. Express this pressure in bars, kPa, atm, and torr.
Iron is obtained commercially by the reaction of hematite (Fe2O3) with carbon monoxide. How many grams of iron is produced when 25 mol of hematite reacts with 30 mol of carbon monoxide? with the balanced equation of Fe2O3 + 3CO = 2Fe + 3CO2
What is the second ionization energy for a given element always greater than the first ionization energy
Identify intermediate A, which has a molecular formula of C10H16O2, and give a curved-arrow mechanism for the transformation of A to the final product
Phenol and straight chain alcohol, The compound C6H5OH is a phelol, and C6H13OH is a straight chain alcohol.
How many grams of dry NH4Cl need to be added to 1.60L of a 0.700M solution of ammonia NH3 to prepare a buffer solution that has a pH of 8.98 Kb for ammonia is 1.8X10^-5 Express your answer (mass of NH4Cl) numerically in grams to three significant ..
a 67.0-g piece of gold at 725k is dropped into 165 g of h2ol at 298k in an insulated container at 1 bar pressure.
For a reaction of hydrogen with iodine, the rate constant is 2.45*10^-4 L mol-1 s-1 at 302 C and 0.950 L Mol-1 s-1 at 508 C.
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