3. How many oxygen atoms are there in 5.0 mol of water?

3.01 * 10^23 oxygen atoms

Explanation:

Water is H2O. So there are one oxygen atom for every molecule of water.

So in 5.0 mol of water molecules, there are 5.0 mol of oxygen atoms.

Since 5.0 mol = 5 * 6.02 * 10^23 molecules, there are 3.01 * 10^23 oxygen atoms.

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

: )

the dissolution of polymer can be thermodynamically described in 2 steps.