the molar mass of aluminum oxide (al₂o₃) is 102.0 g/mol. what is the correct way to write the inverted molar…

the molar mass of aluminum oxide (al₂o₃) is 102.0 g/mol. what is the correct way to write the inverted molar mass of aluminum oxide as a conversion factor?\n○ $\frac{102.0 g al_{2}o_{3}}{1 mol al_{2}o_{3}}$\n○ $\frac{1 mol al_{2}o_{3}}{102.0 g al_{2}o_{3}}$\n○ $\frac{1 mol al_{2}o_{3}}{1 g al_{2}o_{3}}$\n○ $\frac{102.0 mol al_{2}o_{3}}{102.0 g al_{2}o_{3}}$

the molar mass of aluminum oxide (al₂o₃) is 102.0 g/mol. what is the correct way to write the inverted molar mass of aluminum oxide as a conversion factor?\n○ $\frac{102.0 g al_{2}o_{3}}{1 mol al_{2}o_{3}}$\n○ $\frac{1 mol al_{2}o_{3}}{102.0 g al_{2}o_{3}}$\n○ $\frac{1 mol al_{2}o_{3}}{1 g al_{2}o_{3}}$\n○ $\frac{102.0 mol al_{2}o_{3}}{102.0 g al_{2}o_{3}}$

Answer

Explanation:

Step1: Recall molar - mass conversion factor concept

The molar mass of a substance gives the mass per mole. The normal molar - mass conversion factor for aluminum oxide ($Al_2O_3$) with a molar mass of 102.0 g/mol is $\frac{102.0\ g\ Al_2O_3}{1\ mol\ Al_2O_3}$. The inverted molar - mass conversion factor is the reciprocal of this.

Step2: Write the inverted conversion factor

The inverted conversion factor is $\frac{1\ mol\ Al_2O_3}{102.0\ g\ Al_2O_3}$.

Answer:

$\frac{1\ mol\ Al_2O_3}{102.0\ g\ Al_2O_3}$