The change in internal energy that accompanies the transfer of heat (q) or work (w), into or out of a system can be calculated using the following equation: Note the value of heat and work as they are transferred into or out of a system.
For 6.44 x 10^23 atoms:
That amount is 1.07 moles of Cl atoms
multiply the number of moles by the molar mass of Cl which is 35.45
That equals 37.9 grams of Cl. You only use 1 decimal place because there are only 3 significant digits.
Now if it is a text book problem that says chlorine gas, it may be referring to atmospheric Cl gas which is Cl2
In that case, its just 1.07 moles x 70.9 (molar mass of Cl2)
That turns out to be 75.9 g Cl2
Answer:
Explanation:
3 moles per Liter = 3 molar
Answer:
B.
Explanation:
When we say "biosphere", we're referring to the atmosphere, geosphere, lithosphere and hydrosphere, and everything in them. You've probably heard of these in class as the "pillars of Earth" or the "pillars of our planet". In other words, when we talk about biosphere we're talking about life.
Organic compounds are all of the compounds that contain carbon, C, in them. You might know that CHNOPS* are the "7 molecules of life", and you might have noticed that Carbon stands first in the list, and that's not because it makes up a mnemonic, Carbon is indeed the most important one in many ways.
*Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus and Sulfur.
Hope it helped,
BiologiaMagister