the molar mass of iron (iii) oxide (fe₂o₃) is 159.7 g/mol. what is the correct way to write the molar mass…

the molar mass of iron (iii) oxide (fe₂o₃) is 159.7 g/mol. what is the correct way to write the molar mass of iron oxide as a conversion factor?\n159.7 g fe₂o₃ / 159.7 mol fe₂o₃\n1 g fe₂o₃ / 159.7 mol fe₂o₃\n159.7 g fe₂o₃ / 1 mol fe₂o₃\n1 g fe₂o₃ / 1 mol fe₂o₃

the molar mass of iron (iii) oxide (fe₂o₃) is 159.7 g/mol. what is the correct way to write the molar mass of iron oxide as a conversion factor?\n159.7 g fe₂o₃ / 159.7 mol fe₂o₃\n1 g fe₂o₃ / 159.7 mol fe₂o₃\n159.7 g fe₂o₃ / 1 mol fe₂o₃\n1 g fe₂o₃ / 1 mol fe₂o₃

Answer

Answer:

C. $\frac{159.7\ g\ Fe_2O_3}{1\ mol\ Fe_2O_3}$

Explanation:

Step1: Recall molar - mass definition

Molar mass is mass per mole.

Step2: Identify correct conversion factor

For a molar mass of 159.7 g/mol of $Fe_2O_3$, it means 159.7 g of $Fe_2O_3$ per 1 mole of $Fe_2O_3$, so the conversion factor is $\frac{159.7\ g\ Fe_2O_3}{1\ mol\ Fe_2O_3}$.