contestada

given the reaction 4NH3 +5O2 4NO+6H2O, what is the total number of moles of O2 required to produce 40 mol of NO?
(1) 5 mol
(2) 9 mol
(3) 32 mol
(4) 50 mol

Respuesta :

sdmatera
The answer is choice 4 (50 moles). Let me know if you need an explanation

Answer : The correct option is, (4) 50 mole

Solution : Given,

Moles of NO = 40 mole

The given balanced chemical reaction is,

[tex]4NH_3+5O_2\rightarrow 4NO+6H_2O[/tex]

As, 4 moles of NO produces from 5 moles of [tex]O_2[/tex]

So, 40 moles of NO produces from [tex]\frac{5}{4}\times 40=50moles[/tex] of [tex]O_2[/tex]

Therefore, the total number of moles of [tex]O_2[/tex] is, 50 moles

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