Solid lithium hydroxide is used in space vehicles to remove exhaled carbon dioxide. The products are solid lithium carbonate and liquid water. What mass of carbon dioxide gas can 1119 g of lithium hydroxide absorb?
(Write the balanced chemical equation for the reaction first.)
2007-09-25 08:57:54 · 2 answers · asked by mgunterksu 1 in Science & Mathematics ➔ Chemistry
Atomic weights: Li=7 O=16 H=1 C=12 CO2=44 LiOH=24
2LiOH + CO2 ===> Li2CO3 + H2O
1119gLIOH x 1molLIOH/24gLiOH x 1molCO2/2molLiOH x 44gCO2/1molCO2 = 1026g CO2
2007-09-25 09:05:36 · answer #1 · answered by steve_geo1 7 · 0⤊ 0⤋
2LiOH + CO2 = Li2CO3 + H2O
Molar ratios are 2:1::1:1
Mr(LiOH)
Li x 1 = 7 x 1 = 7
O x 1 = 16 x 1 = 16
H x 1 = 1 x 1 =1
7 + 16 + 1 = 24 (Mr (LiOH))
Moles(LiOH) = 1119/24 = 46.625 mole
Moles(CO2) = 46.625/2 = 23.3125moles.
Mass(CO2) = 23.3125 x 44(MrCO2) = 1025.75 g(CO2)
2007-09-25 09:22:33 · answer #2 · answered by lenpol7 7 · 0⤊ 0⤋