Question

In: Chemistry

for each of the following likely the brands of indicated product when 22.0 gram of the...

for each of the following likely the brands of indicated product when 22.0 gram of the first reactant and 39.5 when will the second reactant is used
a) 2SO2(g)+O2(g)--> 2SO3(g)(SO3)
B) 3fe(s)+4H2O(l)-->Fe3O4(s)+4H2(g)(Fe3O4)
c) C7H16(g)+11O2(g)-->7CO2(g)+8H2O(g)(H2O)

Solutions

Expert Solution

Here we hae to find the amount of products produced from the reactants whose mass given in above question.

a)

2SO2(g)+O2(g)--> 2SO3(g)

Mass of SO2 = 22.0 g

Mass of O2 = 39.5 g

Let us find the limiting reactant among these two

Moles of SO3 produced from 22.0 g SO2 =

= 0.343 mol SO3

Moles of SO3 produced from O2 =

Moles of SO3 = 2.47 mol SO3

Limiting reactant is the = SO2

So mass of SO3 produced from 22 g SO2 =

Mass of SO3 = 27.5 g SO3

B)

3Fe(s) + 4H2O(l) -----> Fe3O4(s) + 4H2(g)

Mass of Fe = 22.0 g

Mass of H2O = 39.5 g

Let us find the limiting reactant among these two

Moles of Fe3O4 produced from 22.0 g Fe =

= 0.131 mol Fe3O4

Moles of Fe3O4 produced from H2O  =

Moles of Fe3O4 = 0.549 mol Fe3O4

Limiting reactant is the = Fe

So mass of Fe3O4 produced from 22 g Fe =

Mass of Fe3O4= 30.3g Fe3O4

C)

C7H16(g) +11O2(g) ----> 7CO2(g)+8H2O(g)

Mass of C7H16 = 22.0 g

Mass of O2 = 39.5 g

Let us find the limiting reactant among these two

Moles of H2Oproduced from 22.0 g C7H16 =

= 1.76 mol C7H16

Moles of H2O produced from O2 =

Moles of H2O  = 0.898 mol H2O

Limiting reactant is the = O2

So mass of H2O produced from 39.5 g O2 =

Mass of H2O = 16.2 g H2O


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