Calculate the number of LiLi atoms in 8.9 molmolof Li.

Express your answer using two significant figures.

5.35×10²⁴ atoms of Li

Explanation:

To solve this we apply this rule of three:

We know that 1 mol contains 6.02×10²³ atoms

Therefore, 8.9 moles must contain (8.9 . 6.02×10²³) / 1 = 5.35×10²⁴ atoms

One mol is the amount of substance containing as many elemental entities as atoms, which are contained in 12 g of the C¹² isotope

In conclussion 6.02×10²³ atoms of C¹² isotope weighs 12 g

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i