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Determine the partial pressure and concentration of Nitrogen, Oxygen, and Carbon dioxide. Given the partial pressure of Helium find for Neon.
Dry air near sea level has the following composition by volume: N2 78.08 percent: O2 20.94 percent: Ar, 0.93 percent: CO2, 0.05 percent. The atmospheric pressure is 1.00 atm. Calculate
(a) the partial pressure of each gas in atm and
(b) the concentration of each gas in moles per liter in O°C. (Hint: Because volume is proportional to the number of moles present, mole fractions of gases can be expressed as ratios of volumes at the same temperature and pressure.)
A mixture of helium and neon gases is collected over water at 28.0°C and 745 mmHg. If the partial pressure of helium is 368 mmHg, What is the partial pressure of neon? (Vapor pressure of water at 28°C = 28.3mmHg)
In a bad sporangiospores and fungi, are found in bag-like structures. Ascospores are also found in bag-like structures, but are always present in even numbers. Why are these spore types not the same?
Sodium carbonate (Na2CO3rm Na_2CO_3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be added to neutralize 3.02×103kgkg of sulfuric acid solution
In a seperate trial the student puts 214 mL of the same liquid into the same flask at the same conditions. What will the pressure measure (in kPa) in the second trial?
A mechanism for the decomposition of ozone (2O3 --> 3O2) is O3 --> O2 + O; O + O3 --> O2 + O2 What is the molecularity for the first and second elementary reactions?
Iron reacts with hydrochloric acid to produce iron (II) chloride and hydrogen gas. Fe(s) + 2 HCl(aq) -> FeCl2(aq) + H2(g) How many moles of HCl will react with 4.6 moles of Fe?
in photosynthesis, plants use energy from the sun in combination with carbon dioxide and water to form glucose (C6H12O6) and oxygen. If 4.50 moles of water react with carbon dioxide, what mass of glucose is produced?
A coffee cup calorimeter is being used in this lab despite the fact that one of the reactions produces gas. Calculate the work done using the information
How do the following changes affect the value of the equilibrium constant for a gas-phase exothermic reaction: 1. removal of a reactant
Calculate the mass of KI in grams required to prepare 5.00x10^ 2mL of 3.2 M solution.
What concentration of acetate ion should be present in 0.100 M acetic acid to produce a buffer solution with pH 4.00?
if a 1500 rm kg car can accelerate from 30 kmh to 50 kmh in 3.1 s how long will it take to accelerate from 50 kmh to 75
A water sample was taken from a lake. A 100.00mL portion of this sample was pipetted into a 250mL Erlenmeyer flask. EriochromeBlack T-indicator, sodium cyanide, and ammonia buffer
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