Chemistry, 11.03.2020 03:01 lucahoffmannm

An old fashioned glass apothecary jar contains a patent medicine. The neck is closed with a rubber stopper that is 20 mm tall, with a diameter of 10 mm at the bottom end, widening to 20 mm at the top end. The molar concentration of medicine vapor in the stopper is 2 x 10^-3 kmol/m^3 at the bottom surface and is negligible at the top surface. If the mass diffusivity of medicine vapor in rubber is 0.2 x 10^-9 m^2/s, find the rate (kmol/s) at which vapor exits through the stopper.

Answers: 1

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 07:00, katarah42

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space

Answers: 2

continue

Chemistry, 22.06.2019 07:20, sarah7307

Describing intermolecular forces use the drop down menus to match the type of intermolecular force to its name dipole dipole interactions dipole induced dipole interactions london dispersion forces hydrogen bond van der waals forces done

Answers: 1

continue

Chemistry, 22.06.2019 20:30, jaydenbrock

Identify the correct mole ratio for each substance. sodium chloride (nacl) na: cl = 1: ammonium nitrate (nhno) h: o = 4:

Answers: 1

continue

Chemistry, 22.06.2019 22:10, steven0448

Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number.

Answers: 1

continue

You know the right answer?

An old fashioned glass apothecary jar contains a patent medicine. The neck is closed with a rubber s...