Answer:
-79.8 × 10⁴ J/mol
Explanation:
<em>Arsine, AsH₃, is a highly toxic compound used in the electronics industry for the production of semiconductors. Its vapor pressure is 35 Torr at 111.95 °C and 253 Torr at 83.6 °C.</em>
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Then,
P₁ = 35 torr
T₁ = 111.95 + 273.15 = 385.10 K
P₂ = 253 torr
T₂ = 83.6 + 273.15 = 356.8 K
We can calculate the standard enthalpy of vaporization (ΔH°vap) using the two-point Clausius-Clapeyron equation.
where,
R is the ideal gas constant
Carbon, oxygen, & hydrogen may all be elements found in ethanol, but when separated, they have completely different chemical compounds. They are pure elements where as ethanol is a mixture.
Periods go left to right or horizontally. Groups are a name for the vertical columns in a periodic table. Each column is called a group. The elements in each group have the same number of electrons in the outer orbital.
Answer:
Explanation:
Hacer proyectos de ciencia ayuda a desarrollar el ingenio de un niño
NaCO₃ + 2 HCl = 2 NaCl + H₂O + CO₂
2 moles HCl ----------> 1 mole CO₂
? moles ----------------> 4.8 moles CO₂
moles = 4.8 * 2 / 1
= 9.6 moles of HCl
hope this helps!
