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How many air molecules are in a 13.5 ft x 12 ft x 10ft room? Assume atmospheric pressure of 1 atm, a room temperature of 20.0 degrees Celcius and ideal behavior. There are 28.8 L in 1 cubic foot.
The reaction 2NO ? N2 + O2, has a rate constant of 3.6 x 10^-2 M^-1 s^-1. When [NO]= 2.8 x 10^-3 M, what is the rate of change in M.s^-1 for N2?
A closed vessel contains moist air at 20 degree celcius, the relative humidity being 30 %. What would be the relative humidity become if the vessel were cooled to 10 degree celcius?
How much heat energy is required to raise the temperature of 0.368 of copper from 23.0 to 60.0 ? The specific heat of copper is 0.0920 .
How many milliliters of a 0.20 M glucose C6H12O6 solution are needed to provide a total of 25.0 g of glucose?
In the reaction Cu(s) + 2AgNO3(aq) --> 2Ag(s) + Cu(NO3)2(aq), what number of grams of silver can be produced from 49.1 g of copper?
Ideally what should the ratio between the three slopes (AlCl3 slope= 483.0 , CaCl2 slope= 421.4, and NaCl slope= 181.9) be? What are your actual experimental ratios?
3.47 Annual floods for a stream are normally distributed with a mean of 30,000 cfs and a variance of 1 x 106 cfs2. Determine the average return period Tr of a 32,000-cfs flood in the stream.
Describe what happen to the density of liquid water when its temperature is increased and/or decreased. properly cite your reference source(s) for this information
The sulfide content in a pulp plant effluent is determined with a sulfide ion-slective electrode using the method of standard additions for calibration.
The melting of ice requires 1.44 Kcal/mol. If this energy goes into breaking H-bonds, how many H-bonds will there be in liquid water at 0°C?
An excess sample of solid Ag2SO3 is added to 100 mL of water. After equilibrium is achieved between the solid and its aqueous ions the silver ion concentration is found to be 2.486e-05 Use this information to find Ksp for Ag2SO3
Nylon undergoes depolymerization when heated in aqueous acid. Propose a reaction mechanism that accounts for this fact, using curved arrows to symbolize the flow of electrons.
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