Respuestas
1. Aplicar número de Avogadro
1 mol ---- 6.022 x 10^23 átomos C
X ----5.24 x 10^24 átomos C
X = 8.701 moles de C
2. Aplicar la fórmula n = masa/Mm
Mm Oro = 196.96 g/mol
masa = 2.8 mol x 196.96 g/mol
masa = 551.48 g de oro
3. Aplicar CN
1 mol --- 22.4 L
5 mol ---- x
X = 112 Litros de CO2
4.
Mm CO2 = 44 g/mol
a. calcular gramos de CO2
g CO2 = 2.5 mol C3H8 x 3 mol CO2 x 44 g CO2
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1 mol C3H8 1 mol CO2
g CO2 = 330
b) calcular moles de agua
n H2O = 4.4 g CO2 x 1 mol CO2 x 4 mol H2O
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44 g CO2 2 mol CO2
n H2O = 0.2 noles