Estons points) saved
you breathe in 7.2 l of pure oxygen at 299 k and 100 kpa to fill your lungs. how many moles of
oxygen did you take in? (use the ideal gas law and 8.31 l *pa/mol k for the gas constant).
4.0 moles
1.2 moles
0.29 moles
2.42 moles

According to the diagram; a) identify the anode of the cell and write the half-reaction that occurs there b) write the overall equation for the reaction that occurs as the cell operates c) calculate the value of the standard cell potential ,e cell. d)write the shorthand notation of the cell above e)indicate the flow of the electrons on the diagram

Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?

Asolid that forms and separates from a liquid mixture is called