you can use mole ratios and molar mass to determine the masses of substances involved in a chemical…

you can use mole ratios and molar mass to determine the masses of substances involved in a chemical reaction. using the periodic table, calculate the molar mass of iron (iii) oxide (fe₂o₃). type in your answer using two decimal places.\nnote: molar mass should always be reported as two decimal places because the periodic table uses two. significant figures do not apply to molar masses.\nmolar mass of fe₂o₃ = g/mol\ndone

you can use mole ratios and molar mass to determine the masses of substances involved in a chemical reaction. using the periodic table, calculate the molar mass of iron (iii) oxide (fe₂o₃). type in your answer using two decimal places.\nnote: molar mass should always be reported as two decimal places because the periodic table uses two. significant figures do not apply to molar masses.\nmolar mass of fe₂o₃ = g/mol\ndone

Answer

Explanation:

Step1: Find molar mass of Fe

From the periodic - table, the molar mass of Fe is approximately 55.85 g/mol. There are 2 Fe atoms in Fe₂O₃. $2\times55.85$

Step2: Find molar mass of O

From the periodic - table, the molar mass of O is approximately 16.00 g/mol. There are 3 O atoms in Fe₂O₃. $3\times16.00$

Step3: Calculate molar mass of Fe₂O₃

Add the molar masses of Fe and O in Fe₂O₃. $2\times55.85 + 3\times16.00=111.70+48.00 = 159.70$

Answer:

159.70