Breathing Apparatus - 71 items found

	Steampunk Breathing Apparatus Other $50.00: $60.00 Bids: 0 End time: 14-Feb-12 12:08:02 PST
	ISI MAGNUM PLUS BREATHING APPARATUS WITH 2216 CYLINDER Air Supply $0.99 Bids: 0 End time: 14-Feb-12 10:35:41 PST
	14k Gold 3D Scuba Diver Pendant/Charm 2 Tanks & Breathing Apparatus Precious Metal without Stones $99.99 Bids: 0 End time: 13-Feb-12 14:25:16 PST
	SCOTT PRESUR-PAK II SELF CONTAINED BREATHING APPARATUS SCBA FIREMAN MASK Air Supply $30.00 Best Offer Enabled End time: 07-Mar-12 11:17:57 PST
	SCOTT PRESUR-PAK II SELF CONTAINED BREATHING APPARATUS SCBA FIREMAN MASK Air Supply $30.00 Best Offer Enabled End time: 07-Mar-12 11:17:57 PST
	SCOTT PRESUR-PAK II SELF CONTAINED BREATHING APPARATUS SCBA FIREMAN MASK Air Supply $30.00 Best Offer Enabled End time: 07-Mar-12 11:17:56 PST
	MSA FRESH AIR BREATHING APPARATUS BRAND NEW TANK HARNESS Respirator Masks $150.00 Bids: 9 End time: 13-Feb-12 09:10:49 PST
	Self-contained Firefighting Breathing apparatus Other $20.00 Bids: 0 End time: 12-Feb-12 17:36:01 PST
	HYDRONAUT 1 LEGO AQUAZONE FIGURE W/CHROME BLUE BREATHING APPARATUS Figures $2.95 End time: 06-Mar-12 14:31:39 PST
	EXPLORIEN CHIEF LEGO SPACE FIGURE WITH BREATHING APPARATUS & AIRTANKS Figures $0.99 Bids: 0 End time: 12-Feb-12 11:27:47 PST

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A self contained breathing apparatus uses potassium superoxide, KO2 to convert the carbon dioxide and water?

May 02, 2008 by Song P | Posted in Chemistry

in exhaled air into oxygen, as shown by this equation.
4KO2 (s) + 4 CO2 (g) + @H2O 9g) -> 4 KHCO3 (s) + 3O2 (g)
How many molecules of oxygen gas will be produced from the 0.0468 g of carbon dioxide that is exhaled in a in keeping breath?

4KO2 (s) + 4 CO2 (g) + @H2O 9g) -> 4 KHCO3 (s) + 3O2 (g)

this produces 3 moles oxygen from 4 moles CO2 @ 44.01 g/mol

? moles O2 = 0.0468 g CO2 @ 3 moles O2 / 176.0 grams CO2 = 0.000798 moles of O2

0.000798 moles of O2 @ 6.02 e23 molecules / mole =

4.80 e 20 molecules of O2