Concept explainers
(a)
Interpretation:
Estimate the partial pressure of each component.
Concept introduction:
The
Where, the volume (V) occupied by ‘n’ moles of any gas has a pressure (P) at temperature (T) in Kelvin and ‘R’ = Gas constant
(b)
Interpretation:
Calculate the mass fraction of methane.
Concept introduction:
The Ideal Gas Law is defined as,
Where, the volume (V) occupied by ‘n’ moles of any gas has a pressure (P) at temperature (T) in Kelvin and ‘R’ = Gas constant
(c)
Interpretation:
Calculate the average molecular weight of the gas.
Concept introduction:
The Ideal Gas Law is defined as,
Where, the volume (V) occupied by ‘n’ moles of any gas has a pressure (P) at temperature (T) in Kelvin and ‘R’ = Gas constant
(d)
Interpretation:
Calculate the density of the gas.
Concept introduction:
The Ideal Gas Law is defined as,
Where, the volume (V) occupied by ‘n’ moles of any gas has a pressure (P) at temperature (T) in Kelvin and ‘R’ = Gas constant
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Chapter 5 Solutions
EBK ELEMENTARY PRINCIPLES OF CHEMICAL P
- perform stoichiometric ca1cu1uions for reactions involving gases as reactants or products.arrow_forwardAt the critical point for carbon dioxide, the substance is very far from being an ideal gas. Prove this statement by calculating the density of an ideal gas in g/cm3 at the conditions of the critical point and comparing it with the experimental value. Compute the experimental value from the fact that a mole of CO2 at its critical point occupies 94 cm3.arrow_forwardThe gas in the discharge cell of a laser contains (in mole percent) 11% CO2, 5.3% N2, and 84% He. (a) What is the molar mass of this mixture? (b) Calculate the density of this gas mixture at 32C and 758 mm Hg. (c) What is the ratio of the density of this gas to that of air (MM=29.0g/mol)at the same conditions?arrow_forward
- Exhaled air contains 74.5% N2, 15.7% O2, 3.6% CO2, and 6.2% H2O (mole percent). (a) Calculate the molar mass of exhaled air. (b) Calculate the density of exhaled air at 37C and 757 mm Hg and compare the value you obtained with that of ordinary air (MM=29.0g/mol) under the same conditions.arrow_forwardIn the anaerobic oxidation of glucose by yeast, CO2 is produced: If 1.56 L of CO2 were produced at 22.0 C and 0.965 atm, what mass of C6H12O6 is consumed by the yeast? Assume the ideal gas law applied.arrow_forwardThe ideal gas law also represents the behaviour of mixtures of gases at low pressures. The molar volume of the mixture is the volume divided by the amount of mixture. The partial pressure of gas in a mixture is defined as yiP for an ideal gas mixture, where yi is its mole fraction and P is the total pressure. Ten grams of N2 is mixed with 5 grams of O2 and held at 25oC at 0.750 bar. a. What are the mole fractions of N2 and O2? b. What are the partial pressures of N2 and O2? c. What is the volume of the total mixture?arrow_forward
- A sample of unknown gas was heated to 125°C in a round bottom flask at standard pressure (1.00 atm), and its weight in a 100 ml round bottom flask was taken to be 30.098g. The round bottom flask weighs 30.0g. The gas was determined to be pure so that it can only be composed of a single element (N2, O2, F2, He, Ne, Ar, P2, S2, Cl2). Identify the gas.arrow_forwardA gas mixture used for anesthesia contains 2.83 mol oxygen, O2, and 8.41 mol nitrous oxide, N2O. The total pressure of the mixture is 192 kPa.(a) What are the mole fractions of O2 and N2O?(b) What are the partial pressures of O2 and N2O?arrow_forwardThe gas in the discharge cell of a laser contains (in mole percent) 11% CO2, 5.3% N2, and 84% He. (a) What is the molar mass of this mixture? (b) Calculate the density of this gas mixture at 328C and 758 mm Hg. (c) What is the ratio of the density of this gas to that of air (MM air = 29.0 g/mol) at the same conditionsarrow_forward
- The total pressure of a gas mixture containing nitrogen is 2atm. If the partial pressure of nitrogen is 0.5atm then what is nitrogen's mole fraction in the mixture?arrow_forward3. Assume that the exhaust gas from an automobile contains 1.0% carbon monoxide by volume. Calculate this concentration in mg / m3 at 25 degrees celcius and 1 atm. 4. Calculate the density of air in kg / m3 at STP (Standard Temperature and Pressure) conditions (0 deg celcius and 1 atm), assuming the composition of the atmosphere as 79% nitrogen (N2) and 21 percent oxygen (02) by volume.arrow_forward(a) An ideal gas occupies a volume of 2.2 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container. (b) If the pressure of the 2.2-cm3 volume is reduced to 2.6 ✕ 10−11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container?arrow_forward
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