Question

SnO2 + 2H2 → Sn + 2H2O

Tin oxide reacts with hydrogen to produce tin and water. How many moles of SnO2 are needed to produce 500.0 grams of Sn?

A. 1.57
B. 4.21
C. 634.8
D. 59,350

Answer 1

b. 4.21

Step-by-step explanation:

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Answer 2

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((1moleSn)/(118.71gSn))((1moleSnO_2)/(1moleSn))`

=
`4.21moleSnO_2`

So, the correct option is B: 4.21 moles.