Concept explainers
(a)
Interpretation:
Amount of Helium gas in a
Concept Introduction:
Ideal gas Equation:
Where,
Pressure can be expressed in different units. But it is normally reported in
General unit conversions:
(a)
Answer to Problem 26QRT
Amount of Helium (in moles) is
Explanation of Solution
Given data is shown below,
Amount of Helium (in moles) can be calculated using Ideal gas equation as shown below,
Amount of Helium (in moles) is
(b)
Interpretation:
Volume of Helium gas in a balloon has to be determined when the balloon ascends to a height of
Concept Introduction:
General
Combine Charles’s law and Boyle’s law to get the General gas law or combined gas law given below,
(b)
Answer to Problem 26QRT
Volume of Helium gas is
Explanation of Solution
Given data is shown below,
Volume of Helium gas can be calculated using combined gas law that is proposed by combining the Boyle’s law and Charles’ law as follows,
Volume of Helium gas is
Want to see more full solutions like this?
Chapter 8 Solutions
OWLv2 for Moore/Stanitski's Chemistry: The Molecular Science, 5th Edition, [Instant Access], 1 term (6 months)
- When calcium carbonate is heated strongly, it evolves carbon dioxide gas. CaCO3(s)CaO(s)+CO2(g) 25 g of CaCO3 is heated, what mass of CO2would be produced? What volume would this quantity of CO2 (CU at STP?arrow_forwardHow does hydraulic fracturing differ from previously used techniques for the recovery of natural gas from the earth?arrow_forward3. One way to state Boyle’s law is “All other things being equal, the pressure of a gas is inversely proportional to its volume.” (a) What is the meaning of the term “inversely proportional?” (b) What are the “other things” that must be equal?arrow_forward
- When a large evacuated flask is filled with argon gas, its massincreases by 3.224 g. When the same flask is again evacuatedand then filled with a gas of unknown molar mass, the massincrease is 8.102 g. (a) Based on the molar mass of argon,estimate the molar mass of the unknown gas. (b) What assumptionsdid you make in arriving at your answer?arrow_forward(A) A sample of carbon dioxide gas at a pressure of 1.14 atm and a temperature of 27.1 °C, occupies a volume of 475 mL. If the gas is compressed at constant temperature until its pressure is 1.38 atm, the volume of the gas sample will be mL. (B) A sample of helium gas at a pressure of 0.885 atm and a temperature of 28.4 °C, occupies a volume of 12.4 liters. If the gas is compressed at constant temperature to a volume of 4.05 liters, the pressure of the gas sample will be atm.arrow_forward5.) What volume of Chlorine gas at a pressure of 1 atm and a temperature of 20 °C is required to completely react with Sodium metal?arrow_forward
- The gravitational force exerted by an object is given by F=mg,where F is the force in newtons, mis the mass in kilo-grams, and gis the acceleration due to gravity (9.81 m/s²).(a) Use the definition of the pascal to calculate the mass (in kg)of the atmosphere above 1 m² of ocean.(b) Osmium (Z=76) is a transition metal in Group 8B(8) andhas the highest density of any element (22.6 g/mL). If an os-mium column is 1 m² in area, how high must it be for its pressureto equal atmospheric pressure?arrow_forwardA flask contains a mixture of neon (Ne), krypton (Kr), and radon (Rn) gases. Compare (a) the average kinetic energies of the three types of atoms and (b) the root-mean-square speeds. (Hint: Appendix D shows the molar mass (in g>mol) of each element under the chemical symbol for that element.)arrow_forwardwhat is the mole fraction of 4.31 m KBr (aq)?arrow_forward
- Part A. Multiple Choice Identify the choice that best completes the statement or answers the question. L·atm R = 0.08206 mol · K 1. At 0.982 atm, the height of mercury in a barometer is 0.746 m. If the mercury were replaced with ethanol, what height of ethanol (in meters) would be supported at this pressure? The densities of Hg and ethanol are 13.5 g/cm³ and 0.789 g/cm³, respectively. а. 0.0436 m b. 0.946 m с. 0.760 m d. 12.8 m е. 13.0 marrow_forwardZn reacts with hydrochloric acid to give zinc chloride and hydrogen gas. A sample of 5 g of a Zn mineral requires 10 mL of commercial HCl of 37% purity, by weight and density 1.19 g/mL, to react completely. Find: a) The mass of zinc contained in the sample. b) The purity of the zinc mineral. c) The pressure exerted by the hydrogen gas collected in a 2 L container and at a temperature of 20ºC.please use conversion factors and mark the solutionsThe solutions should be : 3,92 g; 78,4%; 0,72 atm.I just dont know how to do itarrow_forwardZn reacts with hydrochloric acid to give zinc chloride and hydrogen gas. A sample of 5 g of a Zn mineral requires 10 mL of commercial HCl of 37% purity, by weight and density 1.19 g/mL, to react completely. Find: a) The mass of zinc contained in the sample. b) The purity of the zinc mineral. c) The pressure exerted by the hydrogen gas collected in a 2 L container and at a temperature of 20ºC.please use conversion factors and mark the solutionsarrow_forward
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning