One of the challenges astronauts face is in space travel is the build-up of carbon dioxide in their spacecraft. The average human exhales about
42.0 g of carbon dioxide per hour. One method to remove the excess
carbon dioxide from the air is using solid lithium hydroxide:
CO2(8)
+
2 LiOHs
-
Li2CO3(2)
+
H2O(1)
If a typical cannister of LiOH contains 750.0 g, how many hours will
it last for one person before it has to be replaced?

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1

Fossil fuels are organic compounds that are made from

What physical property of gold makes panning a useful way to get gold from streams?