How many atoms are there in a 100. mL sample of titanium whose density is 4.51 g/mL?

How many atoms are there in a 100. mL sample of titanium whose density is 4.51 g/mL? You may find a periodic table helpful. Ensure you use atomic masses to at least 2 decimal points when performing calculations.

5.67 x 1024

2.79 x 1023

1.56 x 10-23

2.72 x 1026

1.33 x 1025