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Rzqust [24]
3 years ago
13

SnO2 + 2H2 → Sn + 2H2O

Chemistry
1 answer:
anzhelika [568]3 years ago
7 0

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.

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La formula quimica de la molecula de agua H20 , si H = 1 gramos y O = 16 gramos . Cual es su composicion porcentual ? 88,88 % de
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88,88 % de O y 11,11 % de H

Explanation:

La composición porcentual se define como la masa que hay de cada mol de átomo en 100g. Las moles de agua en 100g son:

<em>Masa molar agua:</em>

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Así, el porcentaje de O es 88.89% y el de H es 11.11%. La opción correcta es:

<h3>88,88 % de O y 11,11 % de H</h3>
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