A  titanium cube has sides that measure 2.50 cm and has a mass of 28.1 g. Calculate the number of titanium atoms in the cube if a single titanium atom has a mass of 47.8 u.

• A. 3.54x10²³ atoms
• B. 1.98x10²⁴ atoms
• C. 7.41x10¹⁹ atoms
• D. 3.61x10²⁰ atoms

Answer: (A)