K + 02 ---> K20
4K + O2 ---> 2K2O
compounds are composed of elements
elements are composed of sub atomic particles such as electrons and proton
You need to use the ideal gas equation:
P is pressure (in atm or bar)
V is volume (in L)
n is the number of moles (in mol)
R is an experimentally determined ratio of about 0.82
T is the temperature (in Kelvin)
Note:
For all gases, you need to convert Celsius or Fahrenheit to Kelvin.Get V alone.
Plug in the values you have.
you get:
A fun fact: the gas used to fill up a balloon is Helium.