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In the reaction of CO2 and sodium peroxide (Na2O2), sodium carbonate and oxygen gas are formed. 2Na2O2 + 2CO2 --> 2Na2CO3 + O2 This reaction is used in submarines and space vehicles to remove expired CO2 and to generate some O2 of the required for breathing. Assume that the volume of gases exchanged in the lungs equals 4.2 L/min , the content of CO2 expired air is 3.8 % CO2 by volume, and the gases are at 26 degree Celsius and 740mm Hg . If the CO2 and O2 in the above reaction are measured at the same temperature and pressure, 1. How many milliliters of O2 are produced per minute? 2. At what rate is the Na2O2 consumed, in grams per hour?
For the following reaction at equilibrium at 445 celsius the partial ressures were found to be ; [H2] = 0.45 atm, [I2] =0.10 atm and [Hi]=1.53 atm. calculate Kp for this reactino H2(g)+I2(g)---->2HI(g)
solution containing 1.00 g of barium nitrate (199.33g/mol) is combined with 500 mL of a solution containing 1.00 g of sodium sulfate (142.03 g/mol)
A mixture of 0.160 moles of C is reacted with 0.117 moles of O2 in a sealed 10.0L vessel at 500.K, producing a mixture of CO and CO2. The total pressure is 0.640 atm. What is the partial pressure of CO? 3C + 2O2---> 2CO +CO2
what are the names of the quantity measured by each of seven SI base units and the SI symbols of the unit?
A solution of ethanol (C2H5OH) in water is prepared by dissolving 67.5 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution. What is the molarity of the ethanol in this solution?
Calculate the molar concentration of OH- ions in a 0.560 M solution of hypobromite ion (BrO-; Kb = 4.0 x 10^-6). What is the OH- and PH
filtrate be used to transfer the residue when the desired product is solid
State whether the sign of the entropy change of the following processes will be positive or negative. a. PCl3 (l) + Cl2 (g) -> PCl5 (s)
Describe briefly the trend in the stabilities of oxidation states within d-metal? [High and low oxidation states]
Aspirin (acetylsalicylic acid) is a weak monoprotic acid. To determine its acid-dissociation constant, a student dissolved 2.00 g of aspirin in 0.600 L of water and measured the ph . What was the ka value calculated by the student if the ph of the..
A solution of a specific vitamin has ?max = 251nm and a concentration of 4.79x10^-7M. The absorbance of the solution at 251 nm is A = 0.175. What is the molar absorptivity of the vitamin at 251nm
Which of the following gases has the largest Henry's law constant, Kh, for dissolution in water at room temperature and why
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