You determine the volume of your plastic bag (simulated human stomach) is 1.05 l. how many grams of nahco3 (s) are required to fill this container given a 70.2% co2 recovery, assuming the other contents in the bag take up a negligible volume compared to the gas. the temperature of the room is 21.5 °c and the atmospheric pressure is 753.5 mmhg.

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.