Respuesta :
Answer:- B: 4.21 is the correct option.
Solution:- The given balanced equation is:
[tex]SnO_2+2H_2\rightarrow Sn+2H_2O[/tex]
From the balanced equation, there is 1:1 mol ratio between [tex]SnO_2[/tex] and Sn.
To calculate the moles of [tex]SnO_2[/tex] required to produce500.0 grams of Sn, we need to convert the grams to moles and multiply it by the mole ratio as:
[tex]500.0gSn(\frac{1moleSn}{118.71gSn})(\frac{1moleSnO_2}{1moleSn})[/tex]
= [tex]4.21moleSnO_2[/tex]
So, the correct option is B: 4.21 moles.