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In the first 12.0 s of the reaction, 1.8×10-2 mol of {rm{O}}_2 is produced in a reaction vessel with a volume of 0.260 L. What is the average rate of the reaction over this time interval?
Determine the limiting reactant and also calculate how much of the gas is produced?
At 760K, 85% of a sample of cyclopropane changes to propane in 79.0min. Calculate the value of the rate constant for this reaction. All isomerization reactions are first-order.
A sample of zinc metal reacts completely with an excess of hydrochloric acid: Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g) The gaseous product is collected over water at 25.0oC and barometric pressure of 0.980 atm.
what is the minimum amount of 6.0 M H2SO4 neccessary to produce 23.5 g of H2(g) according to the following reaction? 2Al(s) +3H2SO4(aq) --> Al2(SO4)3(aq) + 3H2(g)
0.0010 mg of H, 0.0116 mg of C, and 0.0310 mg of O. It was also determined that the unknown compound had a molecular weight of 90.0 g/mol.
Write the full symbol for each isotope (give both A and Z for each isotope). How many protons, and how many neutrons are present in the nucleus of each isotope?
Small helium-neon lasers emit 3.50 mJ/s of light at 634 nm. How many photons does such a laser emit in one minute?
The vapor pressure of benzene (C6H6) is 120 torr at 27.0C, and its normal boiling point is 80.1C. What is the molar heat of vaporization of benzene.
if the rate of decomposition of N2O5 at a particular instant in a reaction vessel is 4.2 x 10^-7 M/s, what is the rate of appearance of NO2
The vapor pressure of an unknown compound at 25 degrees C is 94.6 Torr and its enthalpy of vaporization is 30811 J/mol. Estimate the normal boiling point of this compound. assume the enthalpy of vaporization is independent of temperature.
Calculate the radius of the metal atom. A hypothetical metal has a face-centered cubic unit cell with the edge length of 4.943 Å.
Carbon and silicon belong to the same group and are known to have similar properties. Do you think that silicon can replace the role that carbon
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