Question

Se prepara gas hilarante (N2O) por calentamiento de 40g de nitrato de amonio según: NH4NO3 (s) ----> N2O (g) + H2O (g). Calcular la masa de óxido que se obtiene

66g
77g
22g
33g
55g
88g

Answer 1

Respuesta:

Explicación:

NH4NO3 → N2O + 2 H2O

a) g de N2O y moles

mol N2O = 60 g NH4NO3 x 1 mol NH4NO3 x 1 mol N2O

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80 g NH4NO3 1 mol NH4NO3

mol N2O = 0.75

g N2O = 60 g NH4NO3 x 1 mol NH4NO3 x 1 mol N2O x 44 g N2O

````````````````````` ``````````````` ````````````````

80 g NH4NO3 1 mol NH4NO3 1 mol N2O

g N2O = 33 g

b) g y moles de H2O

mol H2O = 60 g NH4NO3 x 1 mol NH4NO3 x 2 mol H2O

````````````````````` ```````````````

80 g NH4NO3 1 mol NH4NO3

mol = 1.5 de agua

g H2O = 60 g NH4NO3 x 1 mol NH4NO3 x 2 mol H2O x 18 g H2O

````````````````````` ``````````````` ````````````````

80 g NH4NO3 1 mol NH4NO3 1 mol H2O

gH2O = 27 g