A mol is the number of atoms or molecules it takes to make up the the atomic mass (just think "weight" for now) or molecular mass/weight in grams. E.g., since the atomic weight of oxygen is 16, the "gram atomic weight" of oxygen is 16 grams. It will "turn out" that it is the same number of atoms needed to make up 16 grams of oxygen as make up 12 grams of carbon or 1 gram of hydrogen, or "N" grams of any element with molecular weight "N".
Answer from: Quest
Sorry i don’t know i just need the points
Answer from: Quest
there is none because earth is stationary and flat.
In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?
Which type of precipitation would most likely form when the surface air temperature is slightly below freezing and the air temperature increases as you move upward away from the ground?
8. how much enthalpy/heat is transferred when 0.5113gof ammonia (nh3) reacts with excess oxygen according| to the following equation: 4nh3 +502 - 4n0+ 6h20ah = -905.4j