un recipiente contiene 900 gramos de amoniaco(NH3). Calcula los gramos de nitrógeno y el número de átomos de nitrogeno
Respuestas
un recipiente contiene 900 gramos de amoniaco(NH3). Calcula los gramos de nitrógeno y el número de átomos de nitrogeno
2 NH3 → N2 + 3 H2
1. calcular mogramos de N2
Mm N2 = 28 g/mol
NH3 = 17 g/mol
g N2 = 900 g NH3 x 1 mol NH3 x 1 mol N2 x 28 g N2
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17 g NH3 2 mol NH3 1 mol N2
g N2 = 741.17
2. Calcular moles de N2
n N2 = 900 g NH3 x 1 mol NH3 x 1 mol N2
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17 g NH3 2 mol NH3
n N2 = 26.4705 moles
3. calcular átomos de N2
1 mol ---- 6.022 x 10²³ átomos
26.4705 mol ---- x
x = 1.6103 x 10²⁵ átomos N2