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The decomposition of hydrogen is a first order reaction with a rate constant of 2.7 x 10^5s^-1 at 25 C. Assuming the initial concentration of H2O2 is 0.75 M. Determine (a) the concentration of H2O2 after 1.5 h, and (b) the time (in h) or the concenration to drop to 0.25 M.
A sample of nitrogen has a volume of 630 mL at a temperature of 49 degC. Assuming that the pressure is constant, what will be the volume when the temperature is 348.6 degC.
Draw a Lewis structure of BF that satisfies the octet rule for both atoms
A sample containing 3.00 mol of an ideal gas at 25C is expanded isothermally and reversibly from an initial volume if 6.0L to a final volume of 24.0L. Calculate deltaG and deltaA for this process.
How much energy is required to vaporize 98.6 g of ethanol (C2H5OH) at its boiling point, if its ΔHvap is 40.5 kJ/mol?
Microwave ovens heat food by creating microwave electromagnetic radiation that is absorbed by water molecules in the food. Any material that does not have water in it will not absorb the radiation and will not get hot.
Explain why water-soluble oils of low volatility are not typically isolated by steam distillation.
Show how many µL of protein sample you will take and add with the desired volume of DTT and Laemmli buffer to make the right concentration of sample.
For the following elements show the allocation of electrons to their orbitals on the basis of the Pauli exclusion principle, Hund's rule, and the Aufbau principle.
How many grams of NaOH are needed to react with your original mass of C7H6O2 (1.0225) and how many grams of the measured NaOH
Draw Line structures of each compound a.Benzyl alcohol, benzaldehyde, benzyl acetate b.Aniline,N,N-dimethylaniline, naphthalene c.Benzophenone, Biphenyl, Benzoic acid.
These two solutions will be added together into a beaker to create one solution. Adding them together cause them to dilute each other. Calculated the new molarity of HX. Give your answer to four decimal places.
NaOH are required to neutralize 1.22g of an unknown acid, HA, what is the molecular unit of the unknown acid? Balanced equation: NaOH + HA --> NaA + H20
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