Insects do not have lungs as we do, nor do they breathe through their mouths. Instead, they have a system of tiny tubes, called tracheae, through which oxygen diffuses into their bodies. The tracheae begin at the surface of the insect's body and penetrate into the interior. Suppose that a tracheae is 1.34 mm long with a cross-sectional area of 2.46 x 10-9m2. The concentration of oxygen in the air outside the insect is 0.794 kg/m3, and the diffusion constant is 1.26 x 10-5 m2/s. If the mass per second of oxygen is diffusing through a trachea is 1.66 x 10-12 kg/s, then find the oxygen concentration at the interior end of the tube.

Insects do not have lungs as we do, nor do they breathe through their mouths. Instead, they have a system of tiny tubes, called tracheae, through which oxygen diffuses into their bodies. The tracheae begin at the surface of the insect's body and penetrate into the interior. Suppose that a tracheae is 1.34 mm long with a cross-sectional area of 2.46 x 10-9m2. The concentration of oxygen in the air outside the insect is 0.794 kg/m3, and the diffusion constant is 1.26 x 10-5 m2/s. If the mass per second of oxygen is diffusing through a trachea is 1.66 x 10-12 kg/s, then find the oxygen concentration at the interior end of the tube.

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter7: Solutions And Colloids

Section: Chapter Questions

Problem 7.86E

See similar textbooks

Similar questions

The average concentration of chloride ion in seawater is 19.353g Cl-/kg. The world health organization recommends that the concentration of Cl- ions in drinking water not exceed 250ppm. How many times as much chloride ion is there in seawater than in maximum concentration allowed in drinking water?
It is known that SO2 (molar mass 64 grams) can be removed from a stream of waste gases by bubbling the gases through KOH solution. SO2 + 2 KOH → K2SO3 + H2O What is the maximum mass of SO2 that could be removed by 1.000 x 103 liters of 0.25 M KOH solution? (A) 4.0 kg (B) 8.0 kg (C)16 kg (D) 2.0 x 101 kg (E) 4.0 x 101 kg
Air at 25 degree celsium and 1 atm has 78% by volume N2, 21% by volume O2, and 0.05% by volume methyl ethyl ketone (MEK, CH3CH2COCH3) a) What is the concentration of each component in ppm b)What is the concentration of each in micrograms/cubic meter
You are wanting to apply a soil conditioner to your garden. 10mL of conditioner cover 3m^(2) of your garden. However, before you use it you must dilute the concentrate by placing 10ml of Seasol in a 9L bucket. How many litres of the diluted mixture do you need to cover a garden of 80m^(2).
A student performed the experiment described in this module, using 7.00 mL of a 1.8% H2O2 solution with a density of 1.01 g mL-1. The water temperature was 20 ° C, and the barometric pressure in the laboratory was 30.02 in. Hg. After the student immersed the yeast in the peroxide solution, she collected 45.1 mL of O2. (11) Calculate the percent error for the experiment. What is the observed molar volume?
Calculate the mass of dissolved nitrogen at 25°C in an aquarium containing 77.2 L of water. Assume the total pressure is 101.8 kPa and the mole fraction of nitrogen in air is 0.78. It is recalled that the partial pressure of a gas in a gas mixture can be determined from the total pressure and its mole fraction (Dalton's Law).Give an answer with 2 decimal places.
Calculate the mass of dissolved nitrogen at 25°C in an aquarium containing 73.4 L of water. Assume that the total pressure is 98 kPa and that the mole fraction of nitrogen in air is 0.78.It is recalled that the partial pressure of a gas in a gas mixture can be determined from the total pressure and its mole fraction (Dalton's Law).
Convert 370 ppm of CO2 to μg/m3 at 20oC and 101.325 kPa. Convert 80 μg/m3 of SO2 to ppm at 25oC and 101.325 kPa.
What is the Molecular weight of a certain volatile liquid which is placed in 225 g flask which has total capacity volume of 251.07 ml where after the liquid was heated to 94.5 oC, the gas volatilized and the weight of the flask measured 227.08g.? Round you answer in one decimal place
If the partial pressure of N2 is 2.70 x 105 Pa and the partial pressure of Ne is 5.00 x 105 Pa in a given mixture, what is the mole fraction of Ne (XNe)?
Chemistry Given an average carbon dioxide concentration of 400 ppmv, estimate the mole fraction, partial pressure, and density of carbon dioxide at standard temperature and pressure.
Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl(aq), as described by the chemical equation MnO2(s)+4HCl(aq)⟶MnCl2(aq)+2H2O(l)+Cl2(g) How much MnO2(s) should be added to excess HCl(aq) to obtain 285 mL Cl2(g) at 25 °C and 95 kPa?