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A sample of an unknown gas effuses in 12.2 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.82 min. What is the molar mass of the unknown gas?
Molecular Formula of a Compound from Percent Composition and Molar Mass, What is the molecular formula of a compund that contains 42.87%carbon, 3.598% hydrogen, 25.00% nitrogen
The root mean square velocity of argon atoms is found to be 5.67x103 m/s. What is the temperature of the gas
Suppose the pH of the water is 3.88 and that the concentration of iron(II) in the water is 2.30x 10-5 M, what is the potential of the corrosion reaction under the above conditions at 298 K?
Is always a metal. Is called a catalyst. The magnesium acts as a reducing agent. How many electrons does each magnesium atom lose? Which family of elements in the periodic table contains the most powerful oxidizing agents?
when an irregularly shaped chunk of silicon weighing 8.763 g was placed in a graduated cylinder containing 25.00 mL of water, the water level in the cylinder rose to 28.76 mL. What is the density of silicon in g/cm3?
Which of the following compounds contains a chiral carbon molecule? a) chloroethane b) 1,1-dichloroethane c) dibromochloromethane d) 2-butanol
Compare the reactors when 1 reactor is a BSTR with V=10m^3 and the other is a CSTR with V=10m^3 &Q=10m^3/s. Assume Ca(t=0)=Ca0=10mol/m^3. a) Solve for Ca(t) and Xa(t) for the BSTR and the CSTR.
Sodium hypochlorite, NaOCL, is the active ingredient in household bleach. What is the concentration of hypochlorite ion, if 20.00mL of bleach requires 32.00mL of 0.500 M HCL to reach the equivalence point
A sample of 5.53g of Mg(OH02 is added to 25.0mL of 0.200 M HNO3. How many moles of Mg(OH)2, HNO3, and Mg(NO3)2 are present after the reaction
Although electromagnetic energy behaves as both waves and particles, this kind of wave-particle duality is not exhibited by matter.
Write down the product for the reaction; Butane (forward and backward reaction)in the presence of Aluminium bromide and HBr at the temperature of 27 degree celcius/
Butadiene, C4H6 (used to make synthetic rubber and latex paints) changes into C8H12 with a rate law of rate = 0.014 L/(mol·s) [C4H6]2. What will be the concentration of C4H6 after 2.0 hours if the initial concentration is 0.025 M
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