0.37 (a) Calculate the number of molecules in a deep breath ofair whose volume is 2.25 L at body temperature, 37 °C, anda pressure of 735 torr. (b) The adult blue whale has a lung ca-pacity of 5.0 x 103 L. Calculate the mass of air (assume anaverage molar mass of 28.98 g/mol) contained in an adultblue whale's lungs at 0.0 °C and 1.00 atm, assuming the airbehaves ideally.

The ideal gas equation is known as the general gas equation and is a equation of state for a given…

Answered: 0.37 (a) Calculate the number of…

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter15: Solutions

Section: Chapter Questions

Problem 10CR

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Titanium(III) chloride is used in the manufacture of polyethylene. It is produced by the reaction (at high temperatures) between TiCl4 gas and H2. 2TiCl4(g)+H2(g)2TiCl3(s)+2HCl(g)Assume 100% yield and constant temperature and pressure. (a) How many liters of HCI gas can be produced by mixing 3.72 L of TiCl4 and 4.50 L of H2? (b) How many liters of reactant in excess are present after the reaction is complete?
5-114 Carbon dioxide gas, saturated with water vapor, can be produced by the addition of aqueous acid to calcium carbonate based on the following balanced net ionic equation: (a) How many moles of wet CO (g), collected at 60.°C and 774 torr total pressure, are produced by the complete reaction of 10.0 g of CaCO3 with excess acid? (b) What volume does this wet CO2 occupy? (c) What volume would the CO2 occupy at 774 torr if a desiccant (a chemical drying agent) were added to remove the water? The vapor pressure of water at 60.°C is 149.4 mm Hg.
Pyruvic acid, HC3H3O3, is involved in cell metabolism. It can be assayed for (that is, the amount of it determined) by using a yeast enzyme. The enzyme makes the following reaction go to completion: HC3H3O3(aq)C2H4O(aq)+CO2(g) If a sample containing pyruvic acid gives 21.2 mL of carbon dioxide gas, CO2, at 349 mmHg and 30C, how many grams of pyruvic acid are there in the sample?
When hydrogen peroxide decomposes, oxygen is produced: 2H2O2(aq)2H2O+O2(g)What volume of oxygen gas at 25C and 1.00 atm is produced from the decomposition of 25.00 mL of a 30.0% (by mass) solution of hydrogen peroxide (d=1.05g/mL)?
Potassium peroxide is used to absorb the CO2 produced by the people in a space vehicle. 2K2O2(s)+2CO2(g)2K2CO3(s)+O2(g)If a person at rest exhales 3.0 L of air per minute and CO2 is 3.4% (by volume) of exhaled air, how many grams of K2O2 are needed per person for a five-day trip. Assume a temperature of 250 and 728 mm Hg pressure.
A typical barometric pressure in Kansas City is 740 torr. What is this pressure in atmospheres, in millimeters of mercury, and in kilopascals?
At 1.00 atm and 25 C, the density of dry air is 1.18 g/L. If the air is heated to 55 C at constant pressure, what is its density?
Tin(IV) chloride is used as an external coating on glass to toughen glass containers. It is prepared by reacting tin with chlorine gas. Sn(s)+2Cl2(g)SnCl4(l)The process requires a 25.0% excess of tin and has a yield of 73.7%. Calculate the mass of tin and the volume of chlorine gas (d=2.898g/Lat 25C, 1 atm) needed to produce 0.500 L of SnCl4(d=2.226g/mL).
A student prepares phosphorous acid, H3PO3, by reacting solid phosphorus triiodide with water. PI3(s)+3H2O(l)H3PO3(s)+3HI(g) The student needs to obtain 0.250 L of H3PO3(d=1.651g/cm3). The procedure calls for a 45.0% excess of water and a yield of 75.0%. How much phosphorus triiodide should be weighed out? What volume of water (d=1.651g/cm3) should be used?
Ammonium nitrate can be used as an effective explosive because it decomposes into a large number of gaseous products. At a sufficiently high temperature, ammonium nitrate decomposes into nitrogen, oxygen, and steam. (a) Write a balanced net ionic equation for the decomposition of ammonium nitrate. (b) If 2.00 kg of ammonium nitrate are sealed in a 50.0-L steel drum and heated to 745C, what is the resulting pressure in the drum after decomposition? (Assume 100% decomposition.)
A chemist vaporized a liquid compound and determined its density. If the density of the vapor at 90C and 753 mmHg is 1.585 g/L, what is the molecular weight of the compound?

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