que cantidad de clorato de potasio se necesita descompone para obtener 0.48gramos de oxigeno, ayuda porfavor
Respuestas
Respuesta:
Mm KCl = 74.5 g/mol
KClO3 = 122.5 g/mol
g = 1 x 1000 = 1000 g
moles = masa /Mm
moles KCl = 1000 g x 1 mol KCl
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74.5 mo KCl
moles KCl = 13.42
g KClO3 = 13.42 mol KCl x 2 mol KClO3 x 122.5 g KClO3
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2 mol KCl 1 mol KClO3
g KClO3 = 1643,95
moles O2 = 13.42 mol KCl x 3 mol O2
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2 mol KCl
mole O2 = 20.13
V x P = n x R x T
CN = P = 1 atm y T = 273 K
R = 0.0821 (atm L/mol K)
V = n x R x T
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P
V = 20.13 mol x 0.0821 (atm L/mol K) x 273 K
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1 atm
V = 451.18 Litros
Explicación:
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