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Consider the following reactions and the associated rate laws. Which reaction represents an elementary step?
A + 28 --> P rate = k[A][B]
A + B + C --> P rate = k [A][C]
2A ---> P rate = k[A]
A + 2B ---> P rate = k[B]^2
A + B ---> P rate = k[A][B]
ammonia undergoes autoionization by the transfer of a proton: 2NH3 NH4+ + NH2-, K = 1×10^-33 at -50°C Since ammonia is better proton acceptor than water, the ionization of acids is relatively enhanced in liquid ammonia. For example, acetic acid i..
The density of ethanol is 0.7893 g/mL. What is the volume of 3.5 grams of ethanol. Of 7.0 grams of ethanol.
Suppose you were given a pure stereoisomer that rotated the plane polarized light either +60 degrees or -120 degrees, i.e a uniform colour is observed for both of these readings.
Draw the corrct structure(s) for 2-chloro-2,3-dimethylpentane. Show stereochemistry clearly. Explicitly draw all four groups,
The empirical formula is NO2. If the molar mass is 92g/mol give the molecular formula.
Draw the Lewis Structure and make a rough three-dimensional sketch of each species.
A gaseous mixture containing 0.160 mol fraction of carbon tetrachloride (CCl4) and 0.840 mol fraction of dry air is initially at 57.0°C and 1133 mmHg. If this mixture is cooled at a constant pressure, at what temperature does the CCl4 first start ..
Calculate the formula of a compound, given that 55.85 g of iron combines with 32.06g of sulfur.
Neutron stars are believed to be composed of solid nuclear matter, primarily neutrons.If the radius of a neutron is 1.0 × 10-13 cm, calculate the density of a neutron in g/cm3. (volume of a sphere = ) Assuming that a neutron star has the same dens..
An aqueous solution containing 9.47 g of an optically pure compound was diluted to 200.0 mL with water and placed in a polarimeter tube 20.0 cm long.
Explain what does it mean that a system is in its ground state. What is an operatr for which the wavefunction of such system is the eigenfunction?
when 7.00 moles of gas A and 3.00 moles of gas B are combined, the total pressure exerted by the gas mixture is 1.0 atm. What is the partial pressure exerted by gas a in this mixture
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