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A laboratory glass bottle utilized in laboratory studies of hypoxia contains gas of the subsequent composition expressed as vol%: O2, 18.0%, N2, 80.0%; CO2 2.0%.
a) Compute the partial pressure of each of the gas components. Assume atmospheric pressure (760 mmHg)
b) Presume that the gas is bottles in a 2.0L rigid vessel. The temperature in the lab is 23C. The gauge on the gas bottle reads 1500psig. Explain how many moles of gas are in the bottle? Explain how many moles of each component are in the gas?
c) In the pulmonary functions lab a patient exhales a quantity of gas. The technician reports that the volume of gas, measured at 752 mmHg as well as 22C, is 1.5L. Explain what volume would this gas occupy at STP? Explain what volume would it occupy at BTP?
Under standard-state conditions, what spontaneous reaction will occur in aqueous solution among the ions Ce4+, Ce3+, Fe3+, Fe2+? Calculate ?Go and Kc for the reaction.
Calculate the number of grams of solute that would be needed to make each of the following solutions
A solution of NaOH(aq) contains 11.6 grams of NaOH in 129 mL of solution. Calculate the pH at 25C.
When 2.9683 g of benzoic acid are burned in a calorimeter, the temperature rises from 21.84 C to 24.67 C. What is the heat capacity of the bomb
why does water in a wide, flat shallow dish evaporate more quickly than the same amount of water in a tall, narrow vase? c) why does a sandwich on a plate dry out faster than a sandwich in plastic wrap
A 1.0 ounce piece of chocolate contains 15mg of caffeine, and a 6.0 ounce cup of regular coffee contains 105mg of caffeine. How much chocolate would you have to consume to get as much caffeine as you would from 2.0 cups of coffee.
A carboxylic acid can react with a strong base, such as NaOH, to produce a carboxylate salt (in this case, a sodium salt of a carboxylic acid)
Calculate the molarity and the molality of an NH solution made up of 28.0 g of NH in 70.0 g of water. The density of the solution is 0.982 g.
What is the effect of raising the temperature or increasing the carrier gas flow rate on the ability to resolve two closely
The following data were obtained from experiments to find the molecular formula of lidocaine, a local anesthetic, which contains only carbon, hydrogen, nitrogen, and oxygen.
As NaOH is added to the column, the pH of the effluent is monitored carefully. After 2 mL of 0.4 M NaOH has been added, the effluent pH changes dramatically. Estimate the total column capacity in milliequivalents from this information.
Calculate the molality of a sodium chloride brine solution that exhibits a density of 1.13 g / mL and a mass percent of 17.7% at room temperature
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