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Author Question: One liter of liquid oxygen weighs _____ oz. a. 25 c. 86 b. 40 d. ... (Read 47 times)

s.tung

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on: Jul 16, 2018
One liter of liquid oxygen weighs _____ oz.
 
  a. 25 c. 86
  b. 40 d. 860

Question 2

A home care patient inquires about how long her portable liquid oxygen system, currently weighing 30 lb, will last if she uses 3 L/min. The manufacturer says the weight of an empty con-tainer is 8 lb. Her system will last for _____ day(s) and _____ hours.
 
  a. 1; 18 c. 4; 21
  b. 2; 9 d. 8; 12


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abro1885

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: B
One liter of oxygen weighs 2.5 lb. 2.5 lb  16 oz/lb = 40 oz.

Answer to Question 2

ANS: A
First subtract 8 lb from 30 lb = 22 lb. Convert 22 lb/2.5 lb/L = 8.8 L. 8.8 L  860 (liter of liquid oxygen multiplied by 860 equals the liters of gaseous oxygen) = 7568 L. Then divide by liter flow. 7568/3 L/min = 2522 min = 1 day 18 hours.


s.tung

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Reply #2 on: Jul 16, 2018
TY


abro1885

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Reply #3 on: Jul 16, 2018
Happy to Help


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