« previous next »

Author Question: The peak pressure on a ventilator reads 40 cm H2O. What is the equivalent pressure in mm Hg? a. ... (Read 52 times)

OSWALD

  • Hero Member
  • *****
  • Posts: 580
on: Jul 16, 2018
The peak pressure on a ventilator reads 40 cm H2O. What is the equivalent pressure in mm Hg?
 
  a. 37.0 mm Hg
  b. 29.6 mm Hg
  c. 68.3 mm Hg
  d. 4.9 mm Hg

Question 2

In International System (SI) units, what is any quantity of matter that contains 6.023  1023 at-oms, molecules, or ions?
 
  a. Pound (lb)
  b. Gram (g)
  c. Ounce (oz)
  d. Mole (mol)


kishoreddi

  • Sr. Member
  • ****
  • Posts: 329
    • Your online Help in Biology and chemistry
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: B
Because of mercury's high density (13.6 g/cm3), it assumes a height that is easy to read for most pressures in the clinical range. Water columns can also be used to measure pressure (in cm H2O), but only low pressures. Because water is 13.6 times less dense than mercury, 1 atm.

Answer to Question 2

ANS: D
One mole of a gas, at a constant temperature and pressure, should occupy the same volume as 1 mol of any other gas. This ideal volume is termed the molar volume.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

A hapless Taft is entangled in governmental yarn, while a disapproving Roosevelt looks on. “Goodness A hapless Taft is entangled in governmental yarn, while a disapproving Roosevelt looks on. “Goodness
The fuel system should hold pressure if the system is leak free. The fuel system should hold pressure if the system is leak free.
A typical camshaft-driven high-pressure pump used to increase fuel pressure to 2,000 PSI or higher. A typical camshaft-driven high-pressure pump used to increase fuel pressure to 2,000 PSI or higher.
Bracing the head while applying pressure to the neck. Bracing the head while applying pressure to the neck.
Dorsiflexion of the foot with direct pressure to bottom of foot with the thumbs. Dorsiflexion of the foot with direct pressure to bottom of foot with the thumbs.
5-4 The relationship between vapor pressure and temperature—in this case for water. As the ... 5-4 The relationship between vapor pressure and temperature—in this case for water. As the ...
Video: Brain Lobes Animation

For a complete list of videos, visit our video library