Question

s/u-113891266fe161c2cccf940493cd3b01bd36952/MyFiles/Downloads/HW-200420-%20Spring 202020220(1).pdf 5.(3 points) Alkali metal hydroxides are sometimes used to "scrub" excess carbon dioxide from the air in closed spaces (such as submarines and spacecraft). For example, lithium hydroxide reacts with carbon dioxide according to the unbalanced chemical equation LIOH(s) + CO. (8) LICO, (s) + H2O (O) Suppose a lithium hydroxide canister contains 155 g of LIOH(s). What mass of Co, (8) will the canister be able to absorb? If it is found that after 24 hours of use the canister has absorbed 102 g of carbon dioxide, what percentage of its capacity has been reached? 6.(2 points) One step in the commercial production of sulfuric acid, H.SO trioxide, SO involves the conversion of sulfur dioxide, So Into sulfur 250,(3) +0,1) ► 250,0) If 150 kg of SO, reacts completely, what mass of So, should result? 8

Answer 1

LiOH & Co. - Liz Co + tho After balancing it 22iOH + CO. die CO₂ + H₂O Molar Mass of LiOH = 7+16+1 = 24 gonfone) .. Molesin 155g = Mass - a 155 = 6.46 moles Molar Man 24 2 moles of Ligh react withan 1 mole of con ? 6.46 moles will require 3.23 mols of con Mass of 3.23 mols of Co2 = Molar Mains & Moly - 4 4x3.23 = 142.12 gen So, canister able to absorb 142-12 gm of co But, Abscribed co₂ = 102gn. .. of capacity = 102 x 100.%. 142.12 = 71.77 %.

250₂ + O₂ – 250. 2 moles of SO2 forms - 2 mols of so, smoles of S02 1 moles of so, Molar Mass of so, = 32 +(2 x 16) – 64 gmp my Molar Mass of soz = 32 +3X16) - 80 gmymes It meam - 64 gm of So, fans - Sogn of so, sgm afsoR 80 gr og sog. .150 kg (150x10°3)ofse, >80 x (150x103) = 1.25 x 13 x 150 gm = 187.5 kg of Soz 64