"A chemical reaction occurs between iron (Fe) and chlorine gas (Cl2). A scientist spills chemicals on his notes, erasing what product formed from the reaction. The notes over the reactants can be seen and read: 2Fe + 3Cl2 → What would you predict the molar mass, in grams per mole, of the products to be? "
A.
91 g/mol
B.
147 g/mol
C.
162 g/mol
D.
238 g/mol

Question

"A chemical reaction occurs between iron (Fe) and chlorine gas (Cl2). A scientist spills chemicals on his notes, erasing what product formed from the reaction. The notes over the reactants can be seen and read: 2Fe + 3Cl2 → What would you predict the molar mass, in grams per mole, of the products to be? "
	A.	
91 g/mol
	B.	
147 g/mol
	C.	
162 g/mol
	D.	
238 g/mol

anonymous · Answer

@petiteme  not understanding this one either

petiteme · Answer

@wolfe8

wolfe8 · Answer

You just have to rewrite the equation again yourself. Combine Fe2+ with Cl- to be the product.

anonymous · Answer

so i then get an answer pf B? os that correct?

wolfe8 · Answer

Ah I see. The Fe is Fe3+. If you tried the equation with Fe2+ you would have noticed it didn't work. Give it another try.