type the correct answer in the box. calculate the molar mass of aluminum oxide (al₂o₃). express your answer…

Explanation:

Step1: Find molar mass of Al

The molar mass of Al (aluminum) is approximately 26.98 g/mol. There are 2 Al atoms in (Al_2O_3), so the total mass contributed by Al is (2\times26.98\ g/mol). [2\times26.98 = 53.96\ g/mol]

Step2: Find molar mass of O

The molar mass of O (oxygen) is approximately 16.00 g/mol. There are 3 O atoms in (Al_2O_3), so the total mass contributed by O is (3\times16.00\ g/mol). [3\times16.00=48.00\ g/mol]

Step3: Calculate molar mass of (Al_2O_3)

Add the mass contributed by Al and O. [53.96 + 48.00=101.96\ g/mol] Rounding to four - significant figures gives 102.0 g/mol.

Answer:

102.0