Question

A mole of any substance contains Avogadro's number of units.
a. Write an equivalence statement for this definition.
b. Write the possible conversion factors from this relationship.
c. To determine the following, tell which conversion factor you would need to use:
• Moles Al from atoms Al
• Atoms Au from mol Au

Answer 1

1 mole(6.02*10^23) = Amount of atoms in 12g of carbon-12.
1 gram = 1 mole of amus(Atomic mass units)

13 Moles of AI = 13x(6.02x10^23) = 13 grams
13x(6.02x10^23) Au atoms = 13 moles = 13 grams
Not sure if this is the answer your looking for.(the "^" represents an exponent)

Answer 2

Answer:

a. "one mole of any substance has 6.022x10²³ atoms, molecules or ions (Avogadro's number) into it"

b. $\frac{1mol}{6.022x10^{23}atoms/molecules/ions}$  and $\frac{6.022x10^{23}atoms/molecules/ions}{1mol}$

c.

• $\frac{6.022x10^{23}atomsAl}{1molAl}$

• $\frac{1molAu}{6.022x10^{23}atomsAu}$  

Explanation:

Hello,

a. In this case, a plausible statement would be: "one mole of any substance has 6.022x10²³ atoms, molecules or ions (Avogadro's number) into it".

b. Now, the possible conversion factors could be:

$\frac{1mol}{6.022x10^{23}atoms/molecules/ions}$

or conversely:

$\frac{6.022x10^{23}atoms/molecules/ions}{1mol}$

c.

• Moles Al from atoms Al: the conversion factor will be:

$\frac{6.022x10^{23}atomsAl}{1molAl}$

Since we will need to simplify moles to get atoms.

• Atoms Au from mol Au: the conversion factor will be:

$\frac{1molAu}{6.022x10^{23}atomsAu}$  

Since we will need to simplify atoms to get moles.

Best regards.