Question

SnO2 + 2H2 → Sn + 2H2O

Answer 1

Answer:- B: 4.21 is the correct option.

Solution:- The given balanced equation is:

$SnO_2+2H_2\rightarrow Sn+2H_2O$

From the balanced equation, there is 1:1 mol ratio between $SnO_2$ and Sn.

To calculate the moles of $SnO_2$ required to produce500.0 grams of Sn, we need to convert the grams to moles and multiply it by the mole ratio as:

$500.0gSn(\frac{1moleSn}{118.71gSn})(\frac{1moleSnO_2}{1moleSn})$

= $4.21moleSnO_2$

So, the correct option is B: 4.21 moles.